{"id":1663,"date":"2024-09-29T14:59:15","date_gmt":"2024-09-29T06:59:15","guid":{"rendered":"https:\/\/www.3dptek.com\/?p=1663"},"modified":"2024-09-29T14:59:17","modified_gmt":"2024-09-29T06:59:17","slug":"3d-dayin-xin-tu-po","status":"publish","type":"post","link":"https:\/\/www.3dptek.com\/vi\/repository\/3d-dayin-xin-tu-po\/","title":{"rendered":"\u0110\u1ed9t ph\u00e1 m\u1edbi trong in 3D! B\u00e0i nghi\u00ean c\u1ee9u th\u1ee9 hai tr\u00ean t\u1ea1p ch\u00ed Science n\u0103m 2024!"},"content":{"rendered":"

B\u00e0i b\u00e1o th\u1ee9 hai v\u1ec1 c\u00f4ng ngh\u1ec7 in 3D n\u0103m 2024 \u0111\u01b0\u1ee3c \u0111\u0103ng tr\u00ean t\u1ea1p ch\u00ed Science v\u00e0o ng\u00e0y 8 th\u00e1ng 2.

T\u1eeb\u0110\u1ea1i h\u1ecdc Queensland, \u00dac<\/strong>(Jingqi Zhang v\u00e0 c\u00e1c c\u1ed9ng s\u1ef1),\u0110\u1ea1i h\u1ecdc Tr\u00f9ng Kh\u00e1nh<\/strong>(Ziyong Hou, Xiaoxu Huang)\u0110\u1ea1i h\u1ecdc C\u00f4ng ngh\u1ec7 \u0110an M\u1ea1ch<\/strong>Nh\u00f3m nghi\u00ean c\u1ee9u li\u00ean h\u1ee3p \u0111\u00e3 c\u00f4ng b\u1ed1 b\u00e0i b\u00e1o c\u00f3 ti\u00eau \u0111\u1ec1 \"H\u1ee3p kim titan in 3D si\u00eau \u0111\u1ed3ng nh\u1ea5t, m\u1ea1nh m\u1ebd v\u00e0 d\u1ebbo dai th\u00f4ng qua thi\u1ebft k\u1ebf h\u1ee3p kim hai ch\u1ee9c n\u0103ng\".H\u1ee3p kim titan \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o b\u1eb1ng in 3D \u0111\u1ea1t<\/strong>\u0110\u1ed9 b\u1ec1n k\u00e9o 926MPa v\u00e0 \u0111\u1ed9 d\u1ebbo 26%, \u0111\u1ea1t \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo.<\/strong><\/p>\n\n\n\n

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B\u1ed1i c\u1ea3nh nghi\u00ean c\u1ee9u<\/strong>Trong qu\u00e1 tr\u00ecnh in 3D kim lo\u1ea1i, th\u01b0\u1eddng xu\u1ea5t hi\u1ec7n c\u00e1c h\u1ea1t tinh th\u1ec3 c\u1ed9t l\u1edbn v\u00e0 ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u, d\u1eabn \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u ho\u1eb7c th\u1eadm ch\u00ed k\u00e9m. Nghi\u00ean c\u1ee9u \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t chi\u1ebfn l\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ph\u00e9p tr\u1ef1c ti\u1ebfp s\u1ea3n xu\u1ea5t h\u1ee3p kim titan c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 t\u00ednh ch\u1ea5t \u0111\u1ed3ng nh\u1ea5t th\u00f4ng qua in 3D. Nghi\u00ean c\u1ee9u cho th\u1ea5y vi\u1ec7c b\u1ed5 sung molypden (Mo) v\u00e0o h\u1ed7n h\u1ee3p b\u1ed9t kim lo\u1ea1i \u0111\u00e3 t\u0103ng c\u01b0\u1eddng t\u00ednh \u1ed5n \u0111\u1ecbnh pha v\u00e0 c\u1ea3i thi\u1ec7n \u0111\u1ed9 \u0111\u1ed3ng nh\u1ea5t v\u1ec1 \u0111\u1ed9 b\u1ec1n, \u0111\u1ed9 d\u1ebbo v\u00e0 t\u00ednh ch\u1ea5t k\u00e9o c\u1ee7a h\u1ee3p kim in 3D. B\u00e0i b\u00e1o b\u00ecnh lu\u1eadn c\u00f9ng k\u1ef3 tr\u00ean t\u1ea1p ch\u00ed Science ch\u1ec9 ra r\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng cho c\u00e1c h\u1ed7n h\u1ee3p b\u1ed9t kh\u00e1c v\u00e0 c\u00f3 th\u1ec3 t\u00f9y ch\u1ec9nh c\u00e1c h\u1ee3p kim kh\u00e1c nhau c\u00f3 t\u00ednh ch\u1ea5t \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng.<\/p>\n\n\n\n

Nguy\u00ean nh\u00e2n ch\u00ednh d\u1eabn \u0111\u1ebfn s\u1ef1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u v\u1ec1 t\u00ednh ch\u1ea5t c\u1ee7a h\u1ee3p kim in 3D kim lo\u1ea1i l\u00e0<\/strong>Trong qu\u00e1 tr\u00ecnh in 3D t\u1eebng l\u1edbp, th\u01b0\u1eddng c\u00f3 103<\/sup>-108<\/sup>T\u1ed1c \u0111\u1ed9 l\u00e0m m\u00e1t cao (K\/s) t\u1ea1o ra s\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 \u0111\u00e1ng k\u1ec3 \u1edf r\u00eca v\u00e0 \u0111\u00e1y v\u00f9ng n\u00f3ng ch\u1ea3y c\u1ee7a b\u1ed9t kim lo\u1ea1i. S\u1ef1 ch\u00eanh l\u1ec7ch nhi\u1ec7t \u0111\u1ed9 n\u00e0y g\u00e2y ra s\u1ef1 ph\u00e1t tri\u1ec3n tinh th\u1ec3 ngo\u1ea1i vi d\u1ecdc theo giao di\u1ec7n gi\u1eefa v\u1eadt li\u1ec7u m\u1edbi n\u00f3ng ch\u1ea3y v\u00e0 v\u1eadt li\u1ec7u r\u1eafn b\u00ean d\u01b0\u1edbi, v\u1edbi c\u00e1c tinh th\u1ec3 ph\u00e1t tri\u1ec3n h\u01b0\u1edbng v\u1ec1 trung t\u00e2m v\u00f9ng n\u00f3ng ch\u1ea3y. Qu\u00e1 tr\u00ecnh gia nhi\u1ec7t v\u00e0 t\u00e1i nung ch\u1ea3y m\u1ed9t ph\u1ea7n trong qu\u00e1 tr\u00ecnh in nhi\u1ec1u l\u1edbp cu\u1ed1i c\u00f9ng d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c h\u1ea1t c\u1ed9t l\u1edbn v\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u00e1c pha, c\u1ea3 hai \u0111\u1ec1u kh\u00f4ng mong mu\u1ed1n v\u00ec ch\u00fang c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ednh d\u1ecb h\u01b0\u1edbng v\u00e0 gi\u1ea3m t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc b\u1ecb h\u01b0 h\u1ecfng.<\/p>\n\n\n\n

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\u0110\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo c\u1ee7a c\u00e1c lo\u1ea1i v\u1eadt li\u1ec7u kim lo\u1ea1i<\/p>\n<\/div><\/div>\n<\/div><\/div>\n\n\n\n

H\u1ee3p kim titan l\u00e0 m\u1ed9t trong nh\u1eefng v\u1eadt li\u1ec7u in 3D kim lo\u1ea1i \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t. Trong c\u00e1c \u1ee9ng d\u1ee5ng k\u1ef9 thu\u1eadt \u1edf nhi\u1ec7t \u0111\u1ed9 m\u00f4i tr\u01b0\u1eddng, h\u1ee3p kim titan ph\u00f9 h\u1ee3p th\u01b0\u1eddng c\u00f3 \u0111\u1ed9 gi\u00e3n d\u00e0i k\u00e9o t\u1eeb 10% \u0111\u1ebfn 25%, ph\u1ea3n \u00e1nh \u0111\u1ed9 tin c\u1eady cao c\u1ee7a v\u1eadt li\u1ec7u. M\u1eb7c d\u00f9 \u0111\u1ed9 gi\u00e3n d\u00e0i cao h\u01a1n (\u0111\u1ed9 d\u1ebbo) c\u00f3 l\u1ee3i cho vi\u1ec7c \u0111\u1ecbnh h\u00ecnh d\u1ec5 d\u00e0ng h\u01a1n v\u00e0 \u0111\u01b0\u1ee3c \u01b0u ti\u00ean trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng, vi\u1ec7c t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 trong ph\u1ea1m vi \u0111\u1ed9 gi\u00e3n d\u00e0i n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u01b0u ti\u00ean \u0111\u1ec3 ch\u1ecbu t\u1ea3i c\u01a1 h\u1ecdc. Trong c\u00e1c c\u00f4ng ngh\u1ec7 gia c\u00f4ng kim lo\u1ea1i truy\u1ec1n th\u1ed1ng v\u00e0 s\u1ea3n xu\u1ea5t b\u1ed3i \u0111\u1eafp, lu\u00f4n c\u1ea7n ph\u1ea3i c\u00e2n nh\u1eafc gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo.<\/p>\n\n\n\n

Chi\u1ebfn l\u01b0\u1ee3c v\u00e0 h\u1ea1n ch\u1ebf \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 d\u1ebbo dai<\/strong><\/p>\n\n\n\n

C\u00f3 nhi\u1ec1u chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 v\u00e0 \u0111\u1ed9 d\u1ebbo c\u1ee7a h\u1ee3p kim in 3D.<\/strong>Trong \u0111\u00f3 bao g\u1ed3m t\u1ed1i \u01b0u h\u00f3a thi\u1ebft k\u1ebf h\u1ee3p kim, ki\u1ec3m so\u00e1t quy tr\u00ecnh, t\u0103ng c\u01b0\u1eddng ranh gi\u1edbi tinh th\u1ec3 v\u00e0 s\u1eeda \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a h\u1ea1t tinh th\u1ec3, c\u0169ng nh\u01b0 \u1ee9c ch\u1ebf c\u00e1c pha kh\u00f4ng mong mu\u1ed1n (d\u00f2n), gi\u1edbi thi\u1ec7u pha th\u1ee9 hai v\u00e0 th\u1ef1c hi\u1ec7n x\u1eed l\u00fd sau. Hi\u1ec7n nay, nghi\u00ean c\u1ee9u gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 tinh th\u1ec3 c\u1ed9t v\u00e0 pha x\u1ea5u t\u1eadp trung v\u00e0o vi\u1ec7c pha t\u1ea1p nguy\u00ean t\u1ed1 t\u1ea1i ch\u1ed7 \u0111\u1ec3 thay \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 th\u00e0nh ph\u1ea7n pha. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y c\u0169ng th\u00fac \u0111\u1ea9y s\u1ef1 h\u00ecnh th\u00e0nh tinh th\u1ec3 \u0111\u1ed3ng tr\u1ee5c, t\u1ee9c l\u00e0 c\u1ea5u tr\u00fac c\u00f3 k\u00edch th\u01b0\u1edbc h\u1ea1t g\u1ea7n nh\u01b0 b\u1eb1ng nhau d\u1ecdc theo tr\u1ee5c d\u1ecdc v\u00e0 tr\u1ee5c ngang. H\u1ee3p kim h\u00f3a t\u1ea1i ch\u1ed7 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng ph\u00e1p \u0111\u1ea7y h\u1ee9a h\u1eb9n \u0111\u1ec3 gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo.\u0110\u1eb7c bi\u1ec7t l\u00e0 trong c\u00e1c c\u00f4ng ngh\u1ec7 in 3D nh\u01b0 nung ch\u1ea3y gi\u01b0\u1eddng b\u1ed9t v\u00e0 l\u1eafng \u0111\u1ecdng n\u0103ng l\u01b0\u1ee3ng \u0111\u1ecbnh h\u01b0\u1edbng.<\/strong>\u3002<\/p>\n\n\n\n

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C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 kh\u00e1m ph\u00e1 h\u00ecnh th\u00e1i h\u1ea1t v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc khi th\u00eam c\u00e1c nguy\u00ean t\u1ed1 kh\u00e1c nhau v\u00e0o h\u1ee3p kim in 3D. V\u00ed d\u1ee5, khi tr\u1ed9n c\u00e1c h\u1ea1t nano g\u1ed1m zirconium hydride v\u00e0o h\u1ee3p kim nh\u00f4m kh\u00f4ng th\u1ec3 in, h\u1ecd \u0111\u00e3 thu \u0111\u01b0\u1ee3c v\u1eadt li\u1ec7u c\u00f3 th\u1ec3 in v\u00e0 kh\u00f4ng b\u1ecb n\u1ee9t, v\u1edbi c\u1ea5u tr\u00fac vi m\u00f4 tinh th\u1ec3 \u0111\u1ed3ng tr\u1ee5c v\u00e0 t\u00ednh ch\u1ea5t k\u00e9o t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi v\u1eadt li\u1ec7u r\u00e8n. Tuy nhi\u00ean, \u0111\u1ed1i v\u1edbi h\u1ee3p kim titan, c\u00e1c ch\u1ea5t l\u00e0m m\u1ecbn h\u1ea1t b\u00e1n tr\u00ean th\u1ecb tr\u01b0\u1eddng th\u01b0\u1eddng c\u00f3 t\u00e1c d\u1ee5ng h\u1ea1n ch\u1ebf \u0111\u1ed1i v\u1edbi c\u1ea5u tr\u00fac h\u1ea1t. C\u01a1 ch\u1ebf l\u00e0m m\u1ecbn c\u1ee7a h\u1ee3p kim titan, \u0111\u1eb7c bi\u1ec7t l\u00e0 s\u1ef1 chuy\u1ec3n \u0111\u1ed5i t\u1eeb h\u00ecnh tr\u1ee5 sang h\u00ecnh l\u1eadp ph\u01b0\u01a1ng trong qu\u00e1 tr\u00ecnh \u0111\u00f4ng \u0111\u1eb7c in 3D, \u0111\u00e3 \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u r\u1ed9ng r\u00e3i, nh\u01b0ng v\u1eabn c\u00f2n nh\u1eefng h\u1ea1n ch\u1ebf v\u1ec1 hi\u1ec7u qu\u1ea3. C\u00e1c n\u1ed7 l\u1ef1c \u0111\u1ec3 kh\u1eafc ph\u1ee5c tr\u1edf ng\u1ea1i n\u00e0y bao g\u1ed3m thay \u0111\u1ed5i c\u00e1c th\u00f4ng s\u1ed1 gia c\u00f4ng, \u1ee9ng d\u1ee5ng si\u00eau \u00e2m c\u01b0\u1eddng \u0111\u1ed9 cao, thi\u1ebft k\u1ebf h\u1ee3p kim \u0111\u1ec3 t\u1ea1o ra c\u1ea5u tr\u00fac d\u1ecb ch\u1ea5t c\u1ea7n thi\u1ebft, th\u00eam ch\u1ea5t h\u00f2a tan l\u00e0m ch\u1ea5t l\u00e0m m\u1ecbn h\u1ea1t nh\u01b0 \u0111i\u1ec3m k\u1ebft tinh d\u1ecb ch\u1ea5t, v\u00e0 pha tr\u1ed9n ch\u1ea5t h\u00f2a tan c\u00f3 kh\u1ea3 n\u0103ng si\u00eau l\u1ea1nh cao. C\u00e1c nguy\u00ean t\u1ed1 \u1ed5n \u0111\u1ecbnh \u03b2-eutectic nh\u01b0 Cu, Fe, Cr, Co v\u00e0 Ni h\u1ea1n ch\u1ebf \u0111\u1ed9 h\u00f2a tan trong titan.<\/p>\n\n\n\n

Nh\u1eefng b\u01b0\u1edbc \u0111\u1ed9t ph\u00e1 quan tr\u1ecdng t\u1eeb nghi\u00ean c\u1ee9u m\u1edbi<\/strong>Trong nghi\u00ean c\u1ee9u n\u00e0y, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u kh\u00f4ng s\u1eed d\u1ee5ng c\u00e1c nguy\u00ean t\u1ed1 \u1ed5n \u0111\u1ecbnh \u03b2-peritectic c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn s\u1ef1 h\u00ecnh th\u00e0nh c\u00e1c pha peritectic kim lo\u1ea1i gi\u00f2n trong h\u1ee3p kim titan, m\u00e0 thay v\u00e0o \u0111\u00f3 \u0111\u00e3 ch\u1ecdn c\u00e1c nguy\u00ean t\u1ed1 Mo thu\u1ed9c nh\u00f3m \u03b2-isomorphous (bao g\u1ed3m niobium (Nb), tantalum (Ta) v\u00e0 vanadium (V)) cho h\u1ee3p kim Ti-5553 (Ti-5Al-5Mo-5V-3Cr). Trong qu\u00e1 tr\u00ecnh h\u1ee3p kim h\u00f3a t\u1ea1i ch\u1ed7, molypden \u0111\u01b0\u1ee3c \u0111\u01b0a ch\u00ednh x\u00e1c v\u00e0o b\u1ec3 n\u00f3ng ch\u1ea3y, \u0111\u00f3ng vai tr\u00f2 l\u00e0 h\u1ea1t nh\u00e2n h\u00ecnh th\u00e0nh v\u00e0 tinh th\u1ec3 h\u00f3a trong qu\u00e1 tr\u00ecnh qu\u00e9t t\u1eebng l\u1edbp. Ph\u1ee5 gia Mo th\u00fac \u0111\u1ea9y s\u1ef1 chuy\u1ec3n \u0111\u1ed5i t\u1eeb c\u1ea5u tr\u00fac tinh th\u1ec3 c\u1ed9t l\u1edbn sang c\u1ea5u tr\u00fac tinh th\u1ec3 \u0111\u1ed3ng tr\u1ee5c v\u00e0 c\u1ed9t h\u1eb9p. Mo c\u0169ng c\u00f3 th\u1ec3 \u1ed5n \u0111\u1ecbnh pha \u03b2 mong mu\u1ed1n v\u00e0 \u1ee9c ch\u1ebf s\u1ef1 h\u00ecnh th\u00e0nh d\u1ecb ch\u1ea5t trong qu\u00e1 tr\u00ecnh tu\u1ea7n ho\u00e0n nhi\u1ec7t.
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Ti-5553 h\u1ee3p kim titan pha Mo \u0111\u1eb7c tr\u01b0ng<\/p>\n<\/div><\/div>\n\n\n\n


C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 so s\u00e1nh \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i khi g\u00e3y c\u1ee7a Ti-5553+5Mo v\u1edbi Ti-5553 (c\u0169ng nh\u01b0 Ti-55531 v\u00e0 Ti55511) \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t \u1edf tr\u1ea1ng th\u00e1i L-PBF v\u00e0 sau khi x\u1eed l\u00fd nhi\u1ec7t sau in. So v\u1edbi Ti-5553 \u1edf tr\u1ea1ng th\u00e1i s\u1ea3n xu\u1ea5t v\u00e0 c\u00e1c h\u1ee3p kim t\u01b0\u01a1ng t\u1ef1, Ti-5553+5Mo cho th\u1ea5y \u0111\u1ed9 b\u1ec1n k\u00e9o t\u01b0\u01a1ng \u0111\u01b0\u01a1ng nh\u01b0ng \u0111\u1ed9 d\u1ebbo dai \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n \u0111\u00e1ng k\u1ec3. Qu\u00e1 tr\u00ecnh x\u1eed l\u00fd nhi\u1ec7t sau in th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u00e2n b\u1eb1ng c\u00e1c t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a Ti-5553 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng L-PBF. M\u1eb7c d\u00f9 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 b\u1ec1n k\u00e9o cao (>1100 MPa) trong m\u1ed9t s\u1ed1 \u0111i\u1ec1u ki\u1ec7n x\u1eed l\u00fd nhi\u1ec7t, nh\u01b0ng \u0111\u1ed9 d\u1ebbo th\u01b0\u1eddng b\u1ecb suy gi\u1ea3m \u0111\u00e1ng k\u1ec3, \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t <10%, \u0111i\u1ec1u n\u00e0y h\u1ea1n ch\u1ebf vi\u1ec7c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng quan tr\u1ecdng v\u1ec1 an to\u00e0n. V\u00ed d\u1ee5, \u0111\u1ed1i v\u1edbi Ti6Al4V, \u0111\u01b0\u1ee3c coi l\u00e0 lo\u1ea1i h\u1ee3p kim ch\u00ednh trong ng\u00e0nh c\u00f4ng nghi\u1ec7p titan, \u0111\u1ed9 gi\u00e3n d\u00e0i \u0111\u1ee9t g\u00e3y t\u1ed1i thi\u1ec3u \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb l\u00e0 10%. Ng\u01b0\u1ee3c l\u1ea1i, v\u1eadt li\u1ec7u Ti-5553+5Mo in tr\u1ef1c ti\u1ebfp b\u1eb1ng L-PBF kh\u00f4ng c\u1ea7n x\u1eed l\u00fd nhi\u1ec7t sau \u0111\u00f3 v\u1eabn th\u1ec3 hi\u1ec7n s\u1ef1 c\u00e2n b\u1eb1ng tuy\u1ec7t v\u1eddi gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo, gi\u00fap n\u00f3 n\u1ed5i b\u1eadt so v\u1edbi c\u00e1c h\u1ee3p kim t\u01b0\u01a1ng t\u1ef1. Cu\u1ed1i c\u00f9ng, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 s\u1eed d\u1ee5ng chi\u1ebfn l\u01b0\u1ee3c n\u00e0y \u0111\u1ec3 s\u1ea3n xu\u1ea5tV\u1eadt li\u1ec7u c\u00f3 t\u00ednh \u0111\u1ed3ng nh\u1ea5t v\u1ec1 t\u00ednh n\u0103ng xu\u1ea5t s\u1eafc, \u0111\u1ed9 b\u1ec1n k\u00e9o 926MPa, \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t 26%.<\/strong><\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

C\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a Ti-5553 \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng ph\u01b0\u01a1ng ph\u00e1p L-PBF<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

T\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a Ti-5553 v\u00e0 Ti-5553+5Mo \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t b\u1eb1ng c\u00f4ng ngh\u1ec7 L-PBF<\/p>\n\n\n\n


So v\u1edbi Ti-5553, Ti-5553+5Mo c\u00f3 t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc \u0111\u1ed3ng \u0111\u1ec1u b\u1ea5t th\u01b0\u1eddng v\u00e0 \u0111\u01b0\u1ee3c c\u1ea3i thi\u1ec7n. Th\u00f4ng qua qu\u00e9t c\u1eaft l\u1edbp vi t\u00ednh (micro-CT), \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 ch\u1ea5t l\u01b0\u1ee3ng chi ti\u1ebft, c\u1ea3 hai v\u1eadt li\u1ec7u \u0111\u1ec1u th\u1ec3 hi\u1ec7n m\u1eadt \u0111\u1ed9 r\u1ea5t cao, v\u1edbi t\u1ef7 l\u1ec7 th\u1ec3 t\u00edch l\u1ed7 r\u1ed7ng l\u1ea7n l\u01b0\u1ee3t l\u00e0 0,004024% v\u00e0 0,001589%. M\u1eadt \u0111\u1ed9 cao nh\u01b0 v\u1eady cho th\u1ea5y t\u1ef7 l\u1ec7 l\u1ed7 r\u1ed7ng kh\u00f4ng th\u1ec3 d\u1eabn \u0111\u1ebfn t\u00ednh ch\u1ea5t k\u00e9o ph\u00e2n t\u00e1n cao c\u1ee7a Ti-5333, v\u00e0 c\u0169ng ph\u00f9 h\u1ee3p v\u1edbi t\u00ednh nh\u1ea5t qu\u00e1n cao c\u1ee7a t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc c\u1ee7a Ti-5553+5Mo. \u0110\u1ec3 l\u00e0m r\u00f5 \u1ea3nh h\u01b0\u1edfng c\u1ee7a vi\u1ec7c b\u1ed5 sung Mo \u0111\u1ed1i v\u1edbi c\u1ea5u tr\u00fac h\u1ea1t, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 ti\u1ebfn h\u00e0nh ph\u00e2n t\u00edch t\u00e1n x\u1ea1 ng\u01b0\u1ee3c \u0111i\u1ec7n t\u1eed (EBSD) \u0111\u1ed1i v\u1edbi Ti-5553 v\u00e0 Ti-5553 pha t\u1ea1p Mo. C\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a Ti-5553 bao g\u1ed3m c\u00e1c h\u1ea1t t\u01b0\u01a1ng \u0111\u1ed1i l\u1edbn d\u1ecdc theo h\u01b0\u1edbng qu\u00e9t, th\u1ec3 hi\u1ec7n c\u1ea5u tr\u00fac tinh th\u1ec3 m\u1ea1nh m\u1ebd. Vi\u1ec7c th\u00eam 5,0wt% Mo v\u00e0o Ti-5553 s\u1ebd d\u1eabn \u0111\u1ebfn s\u1ef1 thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 v\u1ec1 c\u1ea5u tr\u00fac h\u1ea1t v\u00e0 c\u1ea5u tr\u00fac tinh th\u1ec3 li\u00ean quan. Nhi\u1ec1u h\u1ea1t tinh th\u1ec3 \u0111\u1ed3ng tr\u1ee5c nh\u1ecf (\u0111\u01b0\u1eddng k\u00ednh kho\u1ea3ng 20\u03bcm) r\u1ea5t r\u00f5 r\u00e0ng, h\u00ecnh th\u00e0nh d\u1ecdc theo r\u00eca \u0111\u01b0\u1eddng qu\u00e9t c\u1ee7a Ti-5553+5Mo. Ng\u01b0\u1ee3c l\u1ea1i, c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a Ti-5553+5Mo \u0111\u01b0\u1ee3c \u0111\u1eb7c tr\u01b0ng b\u1edfi c\u00e1c h\u1ea1t tinh th\u1ec3 \u0111\u1ed3ng tr\u1ee5c nh\u1ecf v\u00e0 c\u00e1c tinh th\u1ec3 c\u1ed9t h\u1eb9p d\u1ecdc theo h\u01b0\u1edbng c\u1ea5u tr\u00fac. Ki\u1ec3m tra k\u1ef9 c\u1ea5u tr\u00fac vi m\u00f4 cho th\u1ea5y s\u1ef1 ph\u00e2n b\u1ed1 tu\u1ea7n ho\u00e0n c\u1ee7a c\u00e1c h\u1ea1t tinh th\u1ec3 c\u1ed9t nh\u1ecf. Kh\u00e1c v\u1edbi c\u00e1c tinh th\u1ec3 c\u1ed9t c\u00f3 c\u1ea5u tr\u00fac cao trong Ti-5553 tr\u1ea3i d\u00e0i qua nhi\u1ec1u l\u1edbp, k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c tinh th\u1ec3 c\u1ed9t trong Ti-5553+5Mo \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi k\u00edch th\u01b0\u1edbc c\u1ee7a v\u0169ng n\u00f3ng ch\u1ea3y, v\u00e0 c\u1ea5u tr\u00fac tinh th\u1ec3 tr\u1edf n\u00ean ng\u1eabu nhi\u00ean v\u00e0 y\u1ebfu.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Ph\u00e2n t\u00edch c\u1ea5u tr\u00fac vi m\u00f4 c\u1ee7a Ti-5553 v\u00e0 Ti-5553+5Mo<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Ph\u00e2n t\u00edch pha c\u1ee7a Ti-5553 v\u00e0 Ti-5553 pha t\u1ea1p molypden<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Ph\u00e2n t\u00edch EBSD c\u1ee7a m\u1eabu th\u1eed g\u00e3y \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o t\u1eeb Ti-55535END
<\/strong><\/p>\n\n\n\n

Tuy nhi\u00ean, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c c\u00e1c h\u1ea1t molypden kh\u00f4ng tan trong c\u1ea5u tr\u00fac vi m\u00f4, v\u00e0 t\u00e1c \u0111\u1ed9ng ti\u1ec1m \u1ea9n c\u1ee7a ch\u00fang v\u1eabn ch\u01b0a r\u00f5 r\u00e0ng. Tr\u00ean th\u1ef1c t\u1ebf, s\u1ef1 hi\u1ec7n di\u1ec7n ng\u1eabu nhi\u00ean c\u1ee7a c\u00e1c h\u1ea1t kh\u00f4ng tan trong chi\u1ebfn l\u01b0\u1ee3c h\u1ee3p kim h\u00f3a t\u1ea1i ch\u1ed7 \u0111\u00e3 g\u00e2y ra lo ng\u1ea1i li\u00ean quan \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc v\u00e0 \u0103n m\u00f2n. V\u00ed d\u1ee5, vi\u1ec7c nung ch\u1ea3y ho\u00e0n to\u00e0n c\u00e1c h\u1ea1t h\u1ee3p kim t\u1ea1i ch\u1ed7 c\u00f3 th\u1ec3 c\u1ea7n nhi\u1ec1u n\u0103ng l\u01b0\u1ee3ng h\u01a1n, v\u00e0 qu\u00e1 nhi\u1ec7t c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn thay \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4 v\u00e0 l\u00e0m gi\u1ea3m t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc. Ngo\u00e0i ra, t\u00ednh ch\u1ea5t m\u1ecfi \u0111\u1ed9ng v\u00e0 \u0103n m\u00f2n do c\u00e1c h\u1ea1t Mo kh\u00f4ng tan g\u00e2y ra v\u1eabn ch\u01b0a r\u00f5 r\u00e0ng. M\u1eb7c d\u00f9 x\u1eed l\u00fd nhi\u1ec7t sau khi in c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf c\u00e1c h\u1ea1t kh\u00f4ng tan, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 thay \u0111\u1ed5i c\u1ea5u tr\u00fac vi m\u00f4, t\u1eeb \u0111\u00f3 c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc.<\/p>\n\n\n\n

T\u1ed5ng quan, chi\u1ebfn l\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c \u0111\u1ec1 xu\u1ea5t trong nghi\u00ean c\u1ee9u n\u00e0y c\u1ee7a Science m\u1edf ra m\u1ed9t con \u0111\u01b0\u1eddng \u0111\u1ec3 kh\u00e1m ph\u00e1 c\u00e1c lo\u1ea1i b\u1ed9t kim lo\u1ea1i kh\u00e1c nhau, c\u00e1c h\u1ec7 th\u1ed1ng h\u1ee3p kim in 3D kh\u00e1c nhau, c\u00e1c c\u00f4ng ngh\u1ec7 in 3D kh\u00e1c nhau v\u00e0 in \u0111a v\u1eadt li\u1ec7u ti\u00ean ti\u1ebfn. N\u00f3 c\u0169ng c\u00f3 th\u1ec3 \u1ee9c ch\u1ebf s\u1ef1 h\u00ecnh th\u00e0nh c\u1ee7a c\u00e1c h\u1ea1t tinh th\u1ec3 h\u00ecnh tr\u1ee5 v\u00e0 ng\u0103n ch\u1eb7n s\u1ef1 kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u c\u1ee7a c\u00e1c pha kh\u00f4ng mong mu\u1ed1n. Nh\u1eefng v\u1ea5n \u0111\u1ec1 n\u00e0y ph\u00e1t sinh do s\u1ef1 ph\u00e2n b\u1ed1 nhi\u1ec7t kh\u00e1c nhau, m\u00e0 s\u1ef1 ph\u00e2n b\u1ed1 nhi\u1ec7t n\u00e0y b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi c\u00e1c th\u00f4ng s\u1ed1 in c\u1ee7a t\u1eebng lo\u1ea1i b\u1ed9t. Chi\u1ebfn l\u01b0\u1ee3c n\u00e0y c\u0169ng kh\u1eafc ph\u1ee5c \u0111\u01b0\u1ee3c s\u1ef1 c\u00e2n b\u1eb1ng gi\u1eefa \u0111\u1ed9 b\u1ec1n v\u00e0 \u0111\u1ed9 d\u1ebbo trong qu\u00e1 tr\u00ecnh in, \u0111\u1ed3ng th\u1eddi gi\u1ea3m thi\u1ec3u nhu c\u1ea7u x\u1eed l\u00fd sau in, nh\u1eefng \u01b0u \u0111i\u1ec3m n\u00e0y ch\u1eafc ch\u1eafn s\u1ebd t\u1ea1o ra m\u1ed9t l\u00e0n s\u00f3ng nghi\u00ean c\u1ee9u trong l\u0129nh v\u1ef1c in 3D.<\/p>","protected":false},"excerpt":{"rendered":"

M\u1ed9t nh\u00f3m nghi\u00ean c\u1ee9u li\u00ean k\u1ebft gi\u1eefa \u0110\u1ea1i h\u1ecdc Queensland, \u0110\u1ea1i h\u1ecdc Tr\u00f9ng Kh\u00e1nh v\u00e0 \u0110\u1ea1i h\u1ecdc C\u00f4ng ngh\u1ec7 \u0110an M\u1ea1ch \u0111\u00e3 c\u00f4ng b\u1ed1 b\u00e0i b\u00e1o c\u00f3 ti\u00eau \u0111\u1ec1 \"Thi\u1ebft k\u1ebf h\u1ee3p kim hai ch\u1ee9c n\u0103ng \u0111\u1ec3 t\u1ea1o ra h\u1ee3p kim titan in 3D si\u00eau \u0111\u1ed3ng nh\u1ea5t, c\u00f3 \u0111\u1ed9 b\u1ec1n cao v\u00e0 t\u00ednh d\u1ebbo dai\".<\/p>","protected":false},"author":1,"featured_media":1673,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[23],"tags":[24],"class_list":["post-1663","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-repository","tag-zhi-shi-ku"],"acf":[],"yoast_head":"\n3D\u6253\u5370\u65b0\u7a81\u7834\uff012024\u5e74\u7b2c\u4e8c\u7bc7Science\u7814\u7a76\uff01 - \u4e09\u5e1d\u79d1\u6280\u80a1\u4efd\u6709\u9650\u516c\u53f8<\/title>\n<meta name=\"description\" content=\"\u7531\u6606\u58eb\u5170\u5927\u5b66\u3001\u91cd\u5e86\u5927\u5b66\u3001\u4e39\u9ea6\u6280\u672f\u5927\u5b66\u7684\u8054\u5408\u56e2\u961f\u53d1\u8868\u4e86\u9898\u4e3a\u201c\u901a\u8fc7\u53cc\u529f\u80fd\u5408\u91d1\u8bbe\u8ba1\u5b9e\u73b0\u8d85\u5747\u5300\u3001\u9ad8\u5f3a\u5ea6\u4e14\u5177\u6709\u5ef6\u5c55\u6027\u76843D\u6253\u5370\u949b\u5408\u91d1\u201d\u6587\u7ae0\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.3dptek.com\/vi\/repository\/3d-dayin-xin-tu-po\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3D\u6253\u5370\u65b0\u7a81\u7834\uff012024\u5e74\u7b2c\u4e8c\u7bc7Science\u7814\u7a76\uff01\" \/>\n<meta property=\"og:description\" content=\"\u7531\u6606\u58eb\u5170\u5927\u5b66\u3001\u91cd\u5e86\u5927\u5b66\u3001\u4e39\u9ea6\u6280\u672f\u5927\u5b66\u7684\u8054\u5408\u56e2\u961f\u53d1\u8868\u4e86\u9898\u4e3a\u201c\u901a\u8fc7\u53cc\u529f\u80fd\u5408\u91d1\u8bbe\u8ba1\u5b9e\u73b0\u8d85\u5747\u5300\u3001\u9ad8\u5f3a\u5ea6\u4e14\u5177\u6709\u5ef6\u5c55\u6027\u76843D\u6253\u5370\u949b\u5408\u91d1\u201d\u6587\u7ae0\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.3dptek.com\/vi\/repository\/3d-dayin-xin-tu-po\/\" \/>\n<meta property=\"og:site_name\" content=\"\u4e09\u5e1d\u79d1\u6280\u80a1\u4efd\u6709\u9650\u516c\u53f8\" \/>\n<meta property=\"article:published_time\" content=\"2024-09-29T06:59:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-09-29T06:59:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.3dptek.com\/wp-content\/uploads\/2024\/09\/2024-nian-di-er-pian-science-yan-jiu.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"644\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"3dptek\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"3dptek\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.3dptek.com\/repository\/3d-dayin-xin-tu-po\/\",\"url\":\"https:\/\/www.3dptek.com\/repository\/3d-dayin-xin-tu-po\/\",\"name\":\"3D\u6253\u5370\u65b0\u7a81\u7834\uff012024\u5e74\u7b2c\u4e8c\u7bc7Science\u7814\u7a76\uff01 - 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