Thermal aging mechanism of Z3CN20-09M cast austenite stainless steel

LI Shilei; WANG Yanli; CHENG Lu; WANG Xitao; LIN Zhi; CHEN Guoliang

doi:10.13374/j.issn1001-053x.2008.10.002

Volume 30 Issue 10

Aug. 2021

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LI Shilei, WANG Yanli, CHENG Lu, WANG Xitao, LIN Zhi, CHEN Guoliang. Thermal aging mechanism of Z3CN20-09M cast austenite stainless steel[J]. Chinese Journal of Engineering, 2008, 30(10): 1117-1121. doi: 10.13374/j.issn1001-053x.2008.10.002

Citation:

LI Shilei, WANG Yanli, CHENG Lu, WANG Xitao, LIN Zhi, CHEN Guoliang. Thermal aging mechanism of Z3CN20-09M cast austenite stainless steel[J]. Chinese Journal of Engineering, 2008, 30(10): 1117-1121. doi: 10.13374/j.issn1001-053x.2008.10.002

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Thermal aging mechanism of Z3CN20-09M cast austenite stainless steel

doi: 10.13374/j.issn1001-053x.2008.10.002

State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2007-10-17
Rev Recd Date: 2008-01-03

Available Online: 2021-08-06

Abstract

Abstract

Z3CN20-09M cast austenite stainless steel was aged at 400℃ for 100-3 000 h and the change law of nano indenter hardness and ferrite content was investigated. Its microstructure after being aged was observed by both TEM and SEM. The results showed that the thermal aging embrittlement was induced by spinodal decomposition in ferrite.
- casting austenite stainless steel(CASS),
- indenter hardness,
- ferrite content,
- spinodal decomposition