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The microstructure and compressive properties of a sintered Fe–Mn–Al porous steel produced by blended elemental powder mixture

Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, P. R. China

Wuhan University of Technology Advanced Engineering Technology, Research Institute of Zhongshan City, Zhongshan 528400, Guangdong, P. R. China

State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, P. R. China

State Key Lab of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China

E-mail Address: zhigangxu@whut.edu.cn

Corresponding author.

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Jinrong Liang

Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, P. R. China

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, and

Jingheng Du

Hubei Key Laboratory of Advanced Technology for Automotive Components, Wuhan University of Technology, Wuhan 430070, P. R. China

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https://doi.org/10.1142/S0217979222400586Cited by:2 (Source: Crossref)

This article is part of the issue:

SPECIAL ISSUE (PART 2): Advanced Materials and Processing Technologies
Guest Editors: Wei Gao, Peng Cao, Yuxin Wang and Zhen He

Abstract

In this study, powder compacts produced by mixed elemental Fe, Mn, Al and C powders without ball milling were sintered at 640^∘C and 1200^∘C, respectively. The results revealed that intermetallic phases belonging to Fe₂Al₅ and Al₈Mn₅ appeared after pre-sintered at 640^∘C. When the temperature increased to 1200^∘C, only α-Fe phase existed. The total porosities of the sintered samples were ∼60 vol.% at 640^∘C and ∼70 vol.% at 1200^∘C, and the peak compressive strength of the 1200^∘C-sintered samples was ∼1.6 MPa at the strain of ∼11%.

Keywords:

PACS: 81.20.−n

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