Effect of temperature on high-cycle fatigue and very high cycle fatigue behaviours of a low-strength Cr-Ni-Mo-V steel welded joint

被引：21

作者：

Wu, W. ^{[1
]}

Zhu, M. -L. ^{[1
]}

Liu, X. ^{[2
]}

Xuan, F. -Z. ^{[1
]}

机构：

[1] East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

[2] Shanghai Turbine Plant Shanghai Elect Power Gener, Shanghai 200240, Peoples R China

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2017年 / 40卷 / 01期

基金：

中国国家自然科学基金;

关键词：

fatigue crack initiation; fatigue strength evaluation; temperature effect; very high cycle fatigue; welded joint; BEARING STEEL; CRACK GROWTH; MICROSTRUCTURE; LIFE; DEFORMATION; ALLOY;

D O I：

10.1111/ffe.12471

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Axially push-pull fatigue tests of a low-strength Cr-Ni-Mo-V steel welded joint were conducted up to very high cycle fatigue regime at room temperature and 370 degrees C. The S-N curve at room temperature shows a duplex shape, while the S-N curve at 370 degrees C is continuously decreasing with lower fatigue strength. The welds at 370 degrees C undergoes dynamic strain ageing and has an enhanced load-defects interaction, leading to equal distribution of failures among different parts of the welds. The Z parameter model, with micro-defect location incorporated, having sound physical representation, is life-controlling of the welds at high temperature.

引用

页码：45 / 54

页数：10

共 31 条

[1]

Bathias C, 1999, FATIGUE FRACT ENG M, V22, P559, DOI 10.1046/j.1460-2695.1999.00183.x

[2]

Carden A. E., 1973, FATIGUE ELEVATED TEM

[3] Formation of fine grained area in martensitic steel during very high cycle fatigue [J].

Chai, G. ;

Forsman, T. ;

Gustavsson, F. ;

Wang, C. .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2015, 38 (11) :1315-1323

[4]

Coffin L.F., 1974, Proceedings of the Institution of Mechanical Engineers, V188, P109, DOI [10.1243/PIMEPROC197418801402, DOI 10.1243/PIMEPROC197418801402]

[5] DEFORMATION AND DAMAGE PROCESSES IN A 12-PERCENT-CR-MO-V STEEL UNDER HIGH-TEMPERATURE LOW-CYCLE FATIGUE CONDITIONS IN AIR AND VACUUM [J].

EARTHMAN, JC ;

EGGELER, G ;

ILSCHNER, B .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1989, 110 :103-114

[6] Very high cycle fatigue life of 2.25Cr-1Mo steel at room and high temperatures [J].

Itoh, Takamoto ;

Hattori, Shuji ;

Fujii, Hiroshi ;

Wakatsuki, Hayato ;

Watashi, Katsumi ;

Hashimoto, Takashi .

Zairyo/Journal of the Society of Materials Science, Japan, 2005, 54 (02) :181-186

[7]

Kanazawa K, 1998, ECF 12: FRACTURE FROM DEFECTS, VOLS. I-III, P369

[8] Ultra-high-cycle fatigue properties and fracture mechanism of modified 2.25Cr-1Mo steel at elevated temperatures [J].

Kobayashi, Hideo ;

Todoroki, Akira ;

Oomura, Toshikazu ;

Sano, Takeru ;

Takehana, Tatsumi .

INTERNATIONAL JOURNAL OF FATIGUE, 2006, 28 (11) :1633-1639

[9] Effects of inclusion size and location on very-high-cycle fatigue behavior for high strength steels [J].

Lei, Zhengqiang ;

Hong, Youshi ;

Xie, Jijia ;

Sun, Chengqi ;

Zhao, Aiguo .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 558 :234-241

[10] Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components [J].

Matsunaga, H. ;

Sun, C. ;

Hong, Y. ;

Murakami, Y. .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 2015, 38 (11) :1274-1284

← 1 2 3 4 →