a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy

Du Guowei; Cai Jiamin; Zhang Xiaoyan

doi:10.13374/j.issn1001-053x.1989.01.012

Volume 11 Issue 1

Oct. 2021

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Du Guowei, Cai Jiamin, Zhang Xiaoyan. a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy[J]. Chinese Journal of Engineering, 1989, 11(1): 63-68. doi: 10.13374/j.issn1001-053x.1989.01.012

Citation:

Du Guowei, Cai Jiamin, Zhang Xiaoyan. a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy[J]. Chinese Journal of Engineering, 1989, 11(1): 63-68. doi: 10.13374/j.issn1001-053x.1989.01.012

Du Guowei, Cai Jiamin, Zhang Xiaoyan. a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy[J]. Chinese Journal of Engineering, 1989, 11(1): 63-68. doi: 10.13374/j.issn1001-053x.1989.01.012

Citation:

Du Guowei, Cai Jiamin, Zhang Xiaoyan. a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy[J]. Chinese Journal of Engineering, 1989, 11(1): 63-68. doi: 10.13374/j.issn1001-053x.1989.01.012

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a' Phase Formation and Embrittlement of Fe-Cr-Al Alloy

doi: 10.13374/j.issn1001-053x.1989.01.012

Received Date: 1986-04-25
Available Online: 2021-10-29

Abstract

Abstract

Using electron microscopy and X-ray diffraction techniques, the structure changes of Fe-Cr-Al alloy being used at low temperature for a long time were investigated. The results demonstrated that increase in embri-ttlement for the alloy was mainly caused by grain growth and α'-phase precipitation which contained 75 at% Cr; as usual, Small amount σ-phase and carbide Gr₂₃C₆ precipitated at grain boundaries.
- Fe-Cr-Al alloy,
- electro-heating alloy,
- embrittlement,
- fracture