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Ultra‐low cost Ti powder for selective laser melting additive manufacturing and superior mechanical properties associated

查看全文 作　　者：Yuhang [1]Hou;Bin [2]Liu;Yong [2]Liu;Yinghao [1]Zhou;Tingting [3]Song;Qi [4]Zhou;Gang [4]Sha;Ming [1]Yan 高影响力作者 机构地区：[1]Department of Materials Science and Engineering, and Shenzhen Key Laboratory for Additive Manufacturing of High-performance Materials, Southern University of Science and Technology, Shenzhen 518055, China;[2]The State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China;[3]School of Aerospace, Mechanical and Manufacturing Engineering, Centre for Additive Manufacturing, RMIT University, Melbourne, VIC 3001, Australia;[4]School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China高影响力机构 出　　处：《Opto-Electronic Advances》索引2019年第2卷第5期,共8页高影响力期刊 基　　金：Shenzhen Science and Technology Innovation Commission (No. ZDSYS201703031748354);National Science Foundation of Guangdong Province (No. 2016A030313756);the Pico Center at SUSTech with support from the Presidential fund and Development and Reform Commission of Shenzhen Municipality (No. 2016-726);the Humboldt Research Fellowship for Experienced Researchers. 摘　　要：One of the bottleneck issues for commercial scale-up of Ti additive manufacturing lies in high cost of raw material, i.e. the spherical Ti powder that is often made by gas atomization. In this study, we address this significant issue by way of powder modification & ball milling processing, which shows that it is possible to produce printable Ti powders based on ultra- low cost, originally unprintable hydrogenation-dehydrogenation (HDH) Ti powder. It is also presented that the as-printed Ti using the modified powder exhibits outstanding mechanical properties, showing a combination of excellent fracture strength (~895 MPa) and high ductility (~19.0% elongation). 关 键 词：selective laser MELTING POWDER modification hydrogenation-dehydrogenation (HDH) TI ball MILLING additive manufacturing
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