MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Materials Processing
Hot Deformation Characteristic and Optimization of Processing Parameters for 0.1C–18Cr–1Al–1Si Ferritic Heat Resistant Stainless Steel
Yingbo ZhangDening ZouYu WangQuansheng WangDonghua ZhangWei Zhang
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2020 Volume 61 Issue 7 Pages 1396-1403

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Abstract

The hot deformation behavior of 0.1C–18Cr–1Al–1Si ferritic heat resistant stainless steel has been investigated in the temperature range of 900–1100°C and the strain rate range of 0.01–1 s−1 employing compressive tests. The obtained results have shown that the volume fraction and average size of the AlN phases and (Cr,Fe)23C6 carbides decrease with increasing strain rate. The deformation activation energy is calculated as 332.306 kJ·mol−1. Based on the analysis of processing map and microstructure, the optimum processing domain for hot deformation is confirmed as the temperature range of 1045–1100°C and strain rate range of 0.06–1 s−1.

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© 2020 The Japan Institute of Metals and Materials
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