SELECTIVE LASER MELTING FOR Nb-BASED POWDER ALLOY

被引:0
作者
Goncharov, Ivan [1 ]
Razumov, Nikolay [1 ]
Borisov, Evgenii [1 ]
Silin, Aleksey [1 ]
Popovich, Anatoly [1 ]
机构
[1] Peter Great St Petersburg Polytech Univ, St Petersburg, Russia
来源
28TH INTERNATIONAL CONFERENCE ON METALLURGY AND MATERIALS (METAL 2019) | 2019年
基金
俄罗斯科学基金会;
关键词
Nb-Si; selective laser melting; additive manufacturing; powder metallurgy; FRACTURE-TOUGHNESS; MICROSTRUCTURE; SPHEROIDIZATION; BEHAVIOR;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The powder of Nb-25Ti-2Cr-2Al-16Si (at%) was obtained by mechanical alloying and plasma spheroidization from elemental powders. The building was performed by SLM 280HL machine on the titanium substrate. The microstructure was analyzed by MIRA Tescan scanning electronic microscope. The XRD was performed by BRUKER D8. The microstructure consists of Nbss+Nb3Si eutectic with several areas of coarse dendrites, corresponds to the Nbss. The microstructure is greatly refined in comparison with casting technologies like VIM.
引用
收藏
页码:1481 / 1485
页数:5
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