In situ synthesis of spherical W–Mo alloy powder for additive manufacturing by spray granulation combined with thermal plasma spheroidization - 文章详情页

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EI SCIE

摘要：

In　the　present　research,　spherical　W–Mo　alloy　powder　for　additive　manufacturing　was　successfully　synthesized　by　spray　granulation　(SG)　in　combination　with　thermal　plasma　spheroidization　(TPS).　Firstly,　W　and　Mo　particles　(1–3　μm)　were　banded　together　through　SG　and　formed　porous　agglomerated　powder　with　desired　particle　size　distribution　and　flowability.　The　porous　agglomerated　W–Mo　powder　was　subsequently　melted　through　thermal　plasma,　W　and　Mo　dissolved　together　and　formed　solid　solution　accompanied　with　powder　densification　during　TPS.　Through　optimization　of　the　process　conditions,　the　spheroidized　W–Mo　alloy　powder　exhibits　homogeneous　element　distribution,　low　oxygen　content　(~0.08%),　and　good　flowability　(10　s/50　g),　which　meet　the　demand　for　laser　powder　bed　fusion　(LPBF).　Remarkably,　nearly　full　dense　W–Mo　alloy　with　few　pores　could　be　fabricated　by　LPBF　based　on　the　spheroidized　W–Mo　alloy　powder.　©　2020　Elsevier　Ltd

关键词：

3D printers Additives Agglomeration Compressive strength Granulation Industrial research Molybdenum alloys Particle size Particle size analysis

作者机构：

[ 1 ] [Tan, Zhen]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 2 ] [Zhou, Zhenlu]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Wu, Xu]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 4 ] [Wang, Yiming]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 5 ] [Shao, Wei]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 6 ] [Guo, Xingye]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 7 ] [Zhou, Zheng]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 8 ] [Yang, Ying]Beijing Center for Physical and Chemical Analysis, Beijing; 100089, China
[ 9 ] [Wang, Guohong]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 10 ] [He, Dingyong]Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing; 100124, China
[ 11 ] [He, Dingyong]Institute of Welding and Surface Engineering Technology, Beijing; 100124, China

通讯作者信息：

贺定勇
[he, dingyong]institute of welding and surface engineering technology, beijing; 100124, china;;[he, dingyong]faculty of materials and manufacturing, beijing university of technology, beijing; 100124, china

电子邮件地址：

dyhe@bjut.edu.cn

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