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
相关论文
共 14 条
  • [1] Coarsening behavior of lath and its effect on creep rates in tempered martensitic 9Cr-W steels
    Abe, F
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 387 : 565 - 569
  • [2] Abe F, 2008, WOODHEAD PUBL MATER, P279, DOI 10.1533/9781845694012.2.279
  • [3] Evolution of microstructure and deformation resistance in creep of tempered martensitic 9-12%Cr-2%W-5%Co steels
    Agamennone, R.
    Blum, W.
    Gupta, C.
    Chakravartty, J. K.
    [J]. ACTA MATERIALIA, 2006, 54 (11) : 3003 - 3014
  • [4] Prevention of the overestimation of long-term creep rupture life by multiregion analysis in strength enhanced high Cr ferritic steels
    Armaki, Hassan Ghassemi
    Maruyama, Kouichi
    Yoshizawa, Mitsuru
    Igarashi, Masaaki
    [J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 490 (1-2): : 66 - 71
  • [5] Evolution of dislocation structure in martensitic steels:: the subgrain size as a sensor for creep strain and residual creep life
    Blum, W
    Götz, G
    [J]. STEEL RESEARCH, 1999, 70 (07): : 274 - 278
  • [6] IWANAGA K, 2000, KEY ENG MATER, V477, P171
  • [7] Kushima H, 1999, TETSU TO HAGANE, V85, P841
  • [8] Strengthening mechanisms of creep resistant tempered martensitic steel
    Maruyama, K
    Sawada, K
    Koike, J
    [J]. ISIJ INTERNATIONAL, 2001, 41 (06) : 641 - 653
  • [9] Oikawa H, 2008, WOODHEAD PUBL MATER, P241, DOI 10.1533/9781845694012.2.241
  • [10] PANAIT C, 2009, P CREEP FRACT HIGH T, P877
12