Residual stress gradients in AISI 9254 steel springs submitted to shot peening and heat treatment for increased fatigue resistance

被引：12

作者：

Costa, Larissa Vilela ^{[1
]}

Goncalves Carneiro, Jose Rubens ^{[1
]}

Coelho Catalao, Rogerio Pinto ^{[2
]}

Ribas, Omar Khayyam ^{[2
]}

Brito, Pedro ^{[1
]}

机构：

[1] Pontificia Univ Catolica Minas Gerais, Av Dom Jose Gaspar 500, BR-30535901 Belo Horizonte, MG, Brazil

[2] FIAT Powertrain, BR-31000000 Betim, MG, Brazil

来源：

RESIDUAL STRESSES IX | 2014年 / 996卷

关键词：

Residual stress; X-ray diffraction; multiple shot peening; fatigue; heat treatment; EFFECTS MECHANISTIC CONSIDERATION; LOW-CYCLE FATIGUE; LIFE; MICROSTRUCTURE;

D O I：

10.4028/www.scientific.net/AMR.996.749

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The presence of surface and subsurface residual stresses in steel components has a significant influence on fatigue resistance. In the present work, surface modification of AISI 9254 steel coil springs by heat treatment and multiple shot-peening procedures was investigated. Samples were characterized in the as-coiled, quenched, quenched and tempered, as well as submitted to single and double shot peening treatments. Depth resolved residual stress profiles were determined by X-ray diffraction combined with electrolytic dissolution of the steel. Fracture analysis was performed subsequent to fatigue tests by scanning electron microscopy. It was possible to show that double shot peening led to an increase in compressive stresses in the immediate sub-surface region, which improved fatigue resistance relative to the other tested conditions.

引用

页码：749 / +

页数：3

共 22 条

[1] Review of shot peening processes to obtain nanocrystalline surfaces in metal alloys [J].

Bagherifard, S. ;

Guagliano, M. .

SURFACE ENGINEERING, 2009, 25 (01) :3-14

[2] Fatigue behavior of a low-alloy steel with nanostructured surface obtained by severe shot peening [J].

Bagherifard, Sara ;

Guagliano, Mario .

ENGINEERING FRACTURE MECHANICS, 2012, 81 :56-68

[3] Refinement of grain boundary carbides in a Si-Cr spring steel by thermomechanical treatment [J].

Barani, A. Ardehali ;

Ponge, D. ;

Raabe, D. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 426 (1-2) :194-201

[4] Micro-structure and surface layer properties of 18CrNiMo7-6 steel after multistep shot peening [J].

Fu, Peng ;

Zhan, Ke ;

Jiang, Chuanhai .

MATERIALS & DESIGN, 2013, 51 :309-314

[5] Surface Yield Strength Gradient versus Residual Stress Relaxation of 7075 Aluminum Alloy [J].

Hu, Yonghui ;

Wu, Yunxin ;

Wang, Guangyu ;

Guo, Junkang .

MATERIALS SCIENCE AND ENGINEERING APPLICATIONS, PTS 1-3, 2011, 160-162 :241-246

[6] Residual stresses and fatigue performance [J].

James, M. N. ;

Hughes, D. J. ;

Chen, Z. ;

Lombard, H. ;

Hattingh, D. G. ;

Asquith, D. ;

Yates, J. R. ;

Webster, P. J. .

ENGINEERING FAILURE ANALYSIS, 2007, 14 (02) :384-395

[7] Mechanism of creation of compressive residual stress by shot peening [J].

Kobayashi, M ;

Matsui, T ;

Murakami, Y .

INTERNATIONAL JOURNAL OF FATIGUE, 1998, 20 (05) :351-357

[8] Microstructural influence on fatigue properties of a high-strength spring steel [J].

Lee, CS ;

Lee, KA ;

Li, DM ;

Yoo, SJ ;

Nam, WJ .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 241 (1-2) :30-37

[9] Low cycle fatigue data evaluation for a high-strength spring steel [J].

Li, DM ;

Kim, KW ;

Lee, CS .

INTERNATIONAL JOURNAL OF FATIGUE, 1997, 19 (8-9) :607-612

[10] The effects of laser peening and shot peening on fretting fatigue in Ti-6Al-4V coupons [J].

Liu, Kevin K. ;

Hill, Michael R. .

TRIBOLOGY INTERNATIONAL, 2009, 42 (09) :1250-1262

← 1 2 3 →