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Materials 2016, 9(3), 161; doi:10.3390/ma9030161

Compressibility of 304 Stainless Steel Powder Metallurgy Materials Reinforced with 304 Short Stainless Steel Fibers

School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China
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Author to whom correspondence should be addressed.
Academic Editor: Jai-Sung Lee
Received: 15 December 2015 / Revised: 25 February 2016 / Accepted: 2 March 2016 / Published: 4 March 2016
(This article belongs to the Section Porous Materials)
View Full-Text   |   Download PDF [3355 KB, uploaded 4 March 2016]   |  

Abstract

Powder metallurgy (P/M) technique is usually used for manufacturing porous metal materials. However, some P/M materials are limitedly used in engineering for their performance deficiency. A novel 304 stainless steel P/M material was produced by a solid-state sintering of 304 stainless steel powders and 304 short stainless steel fibers, which were alternately laid in layers according to mass ratio. In this paper, the compressive properties of the P/M materials were characterized by a series of uniaxial compression tests. The effects of fiber content, compaction pressure and high temperature nitriding on compressive properties were investigated. The results indicated that, without nitriding, the samples changed from cuboid to cydariform without damage in the process of compression. The compressive stress was enhanced with increasing fiber content ranging from 0 to 8 wt.%. For compaction pressure from 55 to 75 MPa, greater compaction pressure improved compressive stress. Moreover, high temperature nitriding was able to significantly improve the yield stress, but collapse failure eventually occurred. View Full-Text
Keywords: powder metallurgy (P/M) material; compressive properties; fiber content; compaction pressure; high temperature nitriding powder metallurgy (P/M) material; compressive properties; fiber content; compaction pressure; high temperature nitriding
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MDPI and ACS Style

Yao, B.; Zhou, Z.; Duan, L.; Xiao, Z. Compressibility of 304 Stainless Steel Powder Metallurgy Materials Reinforced with 304 Short Stainless Steel Fibers. Materials 2016, 9, 161.

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