Low Cycle Fatigue and Relaxation Performance of Ferritic-Martensitic Grade P92 Steel

被引：19

作者：

Juergens, Maria ^{[1
]}

Olbricht, Juergen ^{[1
]}

Fedelich, Bernard ^{[1
]}

Skrotzki, Birgit ^{[1
]}

机构：

[1] Bundesanstalt Mat Forsch & Prufung BAM, Div Expt & Model Based Mech Behav Mat 5 2, D-12205 Berlin, Germany

来源：

METALS | 2019年 / 9卷 / 01期

关键词：

ferritic-martensitic steel; P92; low cycle fatigue; relaxation fatigue; cyclic softening; THERMOMECHANICAL FATIGUE; LIFE ASSESSMENT; POWER-PLANTS; BEHAVIOR; TEMPERATURE; DEFORMATION;

D O I：

10.3390/met9010099

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Due to their excellent creep resistance and good oxidation resistance, 9-12% Cr ferritic-martensitic stainless steels are widely used as high temperature construction materials in power plants. However, the mutual combination of different loadings (e.g., creep and fatigue), due to a "flexible" operation of power plants, may seriously reduce the lifetimes of the respective components. In the present study, low cycle fatigue (LCF) and relaxation fatigue (RF) tests performed on grade P92 helped to understand the behavior of ferritic-martensitic steels under a combined loading. The softening and lifetime behavior strongly depend on the temperature and total strain range. Especially at small strain amplitudes, the lifetime is seriously reduced when adding a hold time which indicates the importance of considering technically relevant small strains.

引用

页数：25

共 38 条

[21] High temperature fatigue: behaviour of three typical classes of structural materials [J].

Pineau, A. ;

Antolovich, S. D. .

MATERIALS AT HIGH TEMPERATURES, 2015, 32 (03) :298-317

[22] Investigations on the growth kinetics of Laves phase precipitates in 12% Cr creep-resistant steels: Experimental and DICTRA calculations [J].

Prat, O. ;

Garcia, J. ;

Rojas, D. ;

Carrasco, C. ;

Inden, G. .

ACTA MATERIALIA, 2010, 58 (18) :6142-6153

[23] Design and characterization of microstructure evolution during creep of 12% Cr heat resistant steels [J].

Rojas, D. ;

Garcia, J. ;

Prat, O. ;

Carrasco, C. ;

Sauthoff, G. ;

Kaysser-Pyzalla, A. R. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (16-17) :3864-3876

[24] Cyclic softening behaviour of a P91 steel under low cycle fatigue at high temperature [J].

Saad, A. A. ;

Sun, W. ;

Hyde, T. H. ;

Tanner, D. W. J. .

11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11), 2011, 10 :1103-1108

[25] Cyclically induced softening due to low-angle boundary annihilation in a martensitic steel [J].

Sauzay, M ;

Brillet, H ;

Monnet, I ;

Mottot, M ;

Barcelo, F ;

Fournier, B ;

Pineau, A .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 400 :241-244

[26] Deformation and life assessment of high temperature materials under creep fatigue loading [J].

Scholz, A ;

Berger, C .

MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK, 2005, 36 (11) :722-730

[27] Low cycle fatigue behavior and microstructural evolution of modified 9Cr-1Mo ferritic steel [J].

Shankar, Vani ;

Valsan, M. ;

Rao, K. Bhanu Sankara ;

Kannan, R. ;

Mannan, S. L. ;

Pathak, S. D. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 437 (02) :413-422

[28] Low cycle fatigue and thermo-mechanical fatigue behavior of modified 9Cr-1Mo ferritic steel at elevated temperatures [J].

Shankar, Vani ;

Bauer, Valerij ;

Sandhya, R. ;

Mathew, M. D. ;

Christ, H. -J. .

JOURNAL OF NUCLEAR MATERIALS, 2012, 420 (1-3) :23-30

[29]

Shibli A., 2001, Damage to power plants due to cycling

[30] Creep-fatigue damage accumulation and interaction diagram based on metallographic interpretation of mechanisms [J].

Skelton, R. P. ;

Gandy, D. .

MATERIALS AT HIGH TEMPERATURES, 2008, 25 (01) :27-54

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