Coarsening of precipitates and degradation of creep resistance in tempered martensite steels

被引：55

作者：

Chilukuru, H. ^{[1
]}

Durst, K. ^{[1
]}

Wadekar, S. ^{[2
]}

Schwienheer, M. ^{[3
]}

Scholz, A. ^{[3
]}

Berger, C. ^{[3
]}

Mayer, K. H. ^{[4
]}

Blum, W. ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Inst Werkstoffwissensch, D-91058 Erlangen, Germany

[2] Bhabha Atom Res Ctr, Div Mat Sci, Bombay 400085, Maharashtra, India

[3] Tech Univ Darmstadt, Inst Werkstoffkunde, Darmstadt, Germany

[4] ALSTOM Energie GmbH, Nurnberg, Germany

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 510-11卷

关键词：

Creep rupture; 9-12Cr steels; Extraction replica; Precipitates; M2X; Z-phase; Ostwald ripening; Particle strengthening; FERRITIC STEELS; CHROMIUM STEEL;

D O I：

10.1016/j.msea.2008.04.088

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Three modified Cr steels were investigated for the types, sizes and volume fractions of precipitates. it is shown that precipitation of V in the form of fine M2X-particles provides high short-term creep resistance, but causes relatively fast degradation of creep resistance due to Ostwald ripening. In the later stages, precipitation of Z-phase and related phenomena accelerate the degradation. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：81 / 87

页数：7

共 19 条

[1] Evolution of microstructure and deformation resistance in creep of tempered martensitic 9-12%Cr-2%W-5%Co steels [J].

Agamennone, R. ;

Blum, W. ;

Gupta, C. ;

Chakravartty, J. K. .

ACTA MATERIALIA, 2006, 54 (11) :3003-3014

[2]

[Anonymous], THESIS U ERLANGEN NU

[3]

CHILUKURU H, 2006, REIHE ENERGIETECHNIK, V53, P1241

[4]

Danielsen HK, 2007, THESIS TU DENMARK

[5] On the nature of internal interfaces in tempered martensite ferritic steels [J].

Dronhofer, A ;

Pesicka, J ;

Dlouhy, A ;

Eggeler, G .

ZEITSCHRIFT FUR METALLKUNDE, 2003, 94 (05) :511-520

[6] MICROSTRUCTURAL CHANGES IN A 12-PERCENT CHROMIUM STEEL DURING CREEP [J].

EGGELER, G ;

NILSVANG, N ;

ILSCHNER, B .

STEEL RESEARCH, 1987, 58 (02) :97-103

[7] Influence of thermal history on precipitation of hardening phases in tempered martensite 10%Cr-steel X12CrMoWVNbN 10-1-1 [J].

Götz, G ;

Blum, W .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 348 (1-2) :201-207

[8]

GOTZ G, 2004, THESIS U ERLANGEN NU

[9] Coarsening of precipitates in an advanced creep resistant 9% chromium steel -: quantitative microscopy and simulations [J].

Gustafson, Å ;

Hättestrand, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 333 (1-2) :279-286

[10]

HALD J, 2004, WERKSTOFFE QUALITAIT

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