Static recovery of tempered lath martensite microstructures during long-term aging in 9-12% Cr heat resistant steels

被引：98
|
作者：
Ghassemi-Armaki, H. [1 ]
Chen, R. P. [1 ]
Maruyama, K. [1 ]
Yoshizawa, M. [2 ]
Igarashi, M. [2 ]
机构：
[1] Tohoku Univ, Grad Sch Environm Studies, Sendai, Miyagi 9808579, Japan
[2] Sumitomo Met Ind Ltd, Corp Res & Dev Labs, Amagasaki, Hyogo 6600891, Japan
来源：
MATERIALS LETTERS | 2009年 / 63卷 / 28期
关键词：
Static recovery; Tempered lath martensite; High Cr ferritic steels; M23C6 and MX precipitates; SUBGRAIN SIZE; CREEP; DEFORMATION; EVOLUTION; LIFE;
D O I：
10.1016/j.matlet.2009.08.024
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Static recovery of tempered lath martensite microstructures of strength enhanced ferritic steels has been investigated during very long-term aging up to 2 x 10(4) h at 650 degrees C for 3 steels containing 9 to 12% Cr. Static recovery of tempered lath martensite microstructure occurs after an incubation period for 1-2 x 10(3) h in the steels. The static recovery is controlled by the loss of strengthening due to M23C6 precipitates, and disappearance of MX carbonitrides cannot be the main cause of the static recovery. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：2423 / 2425
页数：3
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