放电等离子烧结W-Ni-Mn合金的显微组织演变及力学性能

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Bibliographic Details
Published in	中国有色金属学报：英文版 Vol. 27; no. 7; pp. 1588 - 1593
Main Author	潘艳林;丁雷;向道平
Format	Journal Article
Language	English
Published	2017
Subjects	90W-6Ni-4Mn合金;放电等离子烧结(SPS);显微组织;洛氏硬度;抗弯强度
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Bibliography:	Tungsten heavy alloys(90W-6Ni-4Mn)were prepared through spark plasma sintering(SPS)using micron-sized W,Ni,and Mn powders without ball milling as raw materials.The effects of sintering temperature on the microstructure and mechanicalproperties of the90W-6Ni-4Mn alloys were investigated.SPS technology was used to prepare90W-6Ni-4Mn alloys withrelatively high density and excellent comprehensive performance at1150-1250°C for3min.The90W-6Ni-4Mn alloys consistedof the W phase and theγ-(Ni,Mn,and W)binding phase,and the average grain size was less than10μm.The Rockwell hardness andbending strength of alloys first increased and then decreased with increasing sintering temperature.The best comprehensiveperformance was obtained at1200°C,its hardness and bending strength were HRA68.7and1162.72MPa,respectively. 43-1239/TG 90W-6Ni-4Mn alloy; spark plasma sintering; microstructure; Rockwell hardness; bending strength
ISSN:	1003-6326