Microstructure and Mechanical Properties of Vacuum Sintered Austenitic Stainless Steel Parts

被引:3
作者
Lin Shaojiang [1 ]
Feng Dapeng [1 ]
Shi Qinian [1 ]
机构
[1] Huangshi Inst Technol, Sch Mech & Elect Engn, Huangshi 435003, Peoples R China
来源
MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1-3 | 2011年 / 160-162卷
关键词
powder metallurgy; densification; stainless steel; mechanical properties; BEHAVIOR;
D O I
10.4028/www.scientific.net/AMR.160-162.915
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work presents the possibility of obtaining high density austenitic stainless steel parts by powder metallurgy (PM) and sintered in vacuum. Mechanical properties such as tensile strength, yield stress, elongation rate and Vickers hardness were measured by using a tensile testing machine and a Vickers hardness tester at room temperature. Microstructural characterization was performed by means of optical microscopy and scanning electron microscopy (SEM). The effect of sintering temperature on densification and mechanical properties of PM austenitic stainless steel has been investigated. The results show that density and mechanical properties were increased with the increase of sintering temperature, but when the sintering temperature is above 1340 degrees C, they increased slowly. The highest mechanical properties were obtained when sintering temperature was 1340 degrees C.
引用
收藏
页码:915 / 920
页数:6
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