Creep fatigue crack behavior of two power plant steel

被引：24

作者：

Granacher, J ^{[1
]}

Klenk, A ^{[1
]}

Tramer, M ^{[1
]}

Schellenberg, G ^{[1
]}

Mueller, F ^{[1
]}

Ewald, J ^{[1
]}

机构：

[1] TH Darmstadt, Inst Mat Technol, D-64283 Darmstadt, Germany

来源：

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING | 2001年 / 78卷 / 11-12期

关键词：

crack initiation; crack growth; creep fatigue crack conditions; 1 %CrMoNiV-steel; 9%CrMoVNb-steel;

D O I：

10.1016/S0308-0161(01)00106-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crack initiation and crack growth under creep fatigue conditions were experimentally determined on a bainitic turbine rotor steel (30CrMoNiV4-11) and a martensitic pipe steel (X10CrMoVNb9-1). Side grooved compact tension (CT) specimens with 25 and 50 mm thickness as well as double edge notch tensile (DENT) specimens with 15 and 60 mm thickness have been tested in order to observe possible influences of geometry and thus to check the transferability of the specimen test results to the behavior of components. The creep fatigue crack test results can be described with the usual fracture mechanics parameters. A modified two-criteria-method can be used to estimate the crack initiation under creep fatigue conditions. The creep fatigue crack growth can be calculated from the accumulation of fatigue crack growth which is described by the Forman-law and creep crack growth which is described by the C*-parameter. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：909 / 920

页数：12

共 19 条

[1]

ALABED B, 1998, HIDA C CREEP FAT CRA

[2]

[Anonymous], 1987, MAT RES ENG

[3]

*ASTM, E145792 ASTM

[4]

BERGER C, 1999, A78 AVIF U STUTT TU

[5]

BERGER C, 1999, 10395 AIF U STUTTG T

[6] ASSESSMENT OF CREEP CRACK INITIATION AND GROWTH BY MEANS OF A CRACK TIP FAR-FIELD CONCEPTION [J].

EWALD, J .

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, 1989, 20 (06) :195-206

[7]

EWALD J, 2000, 2 INT HIDA C OCT 04

[8]

EWALD J, 1998, INT HIDA C CREEP FAT

[9]

EWALD J, 1989, 505D20D21 COST

[10]

Ewald J, 1979, VDI BER, V354, P39

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