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Ultrauniform, strong, and ductile 3D-printed titanium alloy through bifunctional alloy design

Zhang, Jingqi (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Bermingham, Michael J. (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Otte, Joseph (författare)
Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
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Liu, Yingang (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Hou, Ziyong, 1986- (författare)
KTH,Materialvetenskap,International Joint Laboratory for Light Alloys (Ministry of Education), College of Materials Science and Engineering, Chongqing University, Chongqing, China.; Shenyang National Laboratory for Materials Science, Chongqing University, Chongqing, China
Yang, Nan (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Yin, Yu (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Bayat, Mohamad (författare)
Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark.
Lin, Weikang (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Huang, Xiaoxu (författare)
International Joint Laboratory for Light Alloys (Ministry of Education), College of Materials Science and Engineering, Chongqing University, Chongqing, China.; Shenyang National Laboratory for Materials Science, Chongqing University, Chongqing, China.
StJohn, David H. (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
Dargusch, Matthew S. (författare)
School of Mechanical and Mining Engineering, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia
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School of Mechanical and Mining Engineering, The University of Queensland, St Lucia, Brisbane, QLD, Australia., St. Lucia Centre for Microscopy and Microanalysis, The University of Queensland, St. Lucia, Brisbane, QLD, Australia., St. Lucia (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2024
2024
Engelska.
Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 383:6683, s. 639-645
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Coarse columnar grains and heterogeneously distributed phases commonly form in metallic alloys produced by three-dimensional (3D) printing and are often considered undesirable because they can impart nonuniform and inferior mechanical properties. We demonstrate a design strategy to unlock consistent and enhanced properties directly from 3D printing. Using Ti−5Al−5Mo−5V−3Cr as a model alloy, we show that adding molybdenum (Mo) nanoparticles promotes grain refinement during solidification and suppresses the formation of phase heterogeneities during solid-state thermal cycling. The microstructural change because of the bifunctional additive results in uniform mechanical properties and simultaneous enhancement of both strength and ductility. We demonstrate how this alloy can be modified by a single component to address unfavorable microstructures, providing a pathway to achieve desirable mechanical characteristics directly from 3D printing.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

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