Influence of multiple laser peening on vibration fatigue properties of TC6 titanium alloy

被引：32

作者：

Li, Jing ^{[1
]}

Zhou, Jianzhong ^{[1
]}

Feng, Aixin ^{[2
,3
]}

Huang, Shu ^{[1
]}

Meng, Xiankai ^{[1
]}

Sun, Yunjie ^{[1
]}

Huang, Yu ^{[1
]}

Tian, Xuliang ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Mech Engn, Zhenjiang 212013, Jiangsu, Peoples R China

[2] Wenzhou Univ, Coll Mech & Elect Engn, Wenzhou 325035, Peoples R China

[3] Wenzhou Univ, Inst Laser & Opto Elect Mfg, Wenzhou 325024, Peoples R China

来源：

OPTICS AND LASER TECHNOLOGY | 2019年 / 118卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

TC6 titanium alloy; Laser peening; Vibration fatigue properties; Residual stress; Microstructure evolution; BULK METALLIC-GLASS; MECHANICAL-PROPERTIES; DEFORMATION; BEHAVIOR;

D O I：

10.1016/j.optlastec.2019.05.007

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this study, typical TC6 titanium alloy was taken to investigate the effects of multiple laser peening (LP) on the vibration fatigue properties and microstructural evolution. The vibration fatigue experiments were conducted, while the vibration fatigue life of the specimens before and after LP was compared and the fracture morphologies were observed by scanning electron microscopy (SEM). In addition, the measurements of residual stress and microhardness were carried out. The microstructures produced by different treatments were also characterized by transmission electron microscopy (TEM) and electron backscattered diffraction (EBSD). The experimental results indicated that multiple LP could indeed enhance the vibration fatigue properties of TC6 titanium alloy. Comparing with the investigated specimen without LP, the vibration fatigue life of the specimen subjected to 5 times LP increased by 105.2%. Meanwhile, after 5 times LP, the surface residual stress transformed from tensile stress (+26 MPa) to compressive stress (-485 MPa), and the surface microhardness was 428 HV, which increased by 32.9% compared with the untreated sample. Additionally, high-density of dislocation and deformation twin were also generated after multiple LP. The improvement of vibration fatigue properties was attributed to the rewarding compressive residual stress and the beneficial microstructural evolution induced by multiple LP.

引用

页码：183 / 191

页数：9

共 28 条

[1] Effects of surface deformation on the oxidation behavior of INCONEL 740 superalloy in humid air [J].

Abbasi, Majid ;

Kim, Byung-Kyu ;

Kim, Dong-Ik ;

Jung, Woo-Sang .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 683 :212-220

[2] The effect of residual stresses arising from laser shock peening on fatigue crack growth [J].

Chahardehi, A. ;

Brennan, F. P. ;

Steuwer, A. .

ENGINEERING FRACTURE MECHANICS, 2010, 77 (11) :2033-2039

[3] PREDICTION OF NON PROPAGATING CRACKS [J].

ELHADDAD, MH ;

TOPPER, TH ;

SMITH, KN .

ENGINEERING FRACTURE MECHANICS, 1979, 11 (03) :573-584

[4] Enhanced plasticity of bulk metallic glass in different aspect ratios via laser shock peening with multiple impacts [J].

Fu, Jie ;

Zhu, Yunhu ;

Zheng, Chao ;

Liu, Ren ;

Ji, Zhong .

OPTICS AND LASER TECHNOLOGY, 2016, 83 :43-48

[5] Improvement of fatigue property in 7050-T7451 aluminum alloy by laser peening and shot peening [J].

Gao, Y. K. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2011, 528 (10-11) :3823-3828

[6]

He WF, 2013, RARE METAL MAT ENG, V42, P1643

[7] On the influence of laser peening with different coverage areas on fatigue response and fracture behavior of Ti-6Al-4V alloy [J].

Huang, S. ;

Sheng, J. ;

Zhou, J. Z. ;

Lu, J. Z. ;

Meng, X. K. ;

Xu, S. Q. ;

Zhang, H. F. .

ENGINEERING FRACTURE MECHANICS, 2015, 147 :72-82

[8] Residual stress relaxation of deep-rolled Al-Mg-Si-Cu alloy during cyclic loading at elevated temperatures [J].

Juijerm, P. ;

Altenberger, I. .

SCRIPTA MATERIALIA, 2006, 55 (12) :1111-1114

[9] Three-dimensional microstructure-based micromechanical modeling for TC6 titanium alloy [J].

Li, Guoju ;

Shi, Ran ;

Fan, Qunbo ;

Xia, Yumeng ;

Zhang, Hongmei .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 685 :327-331

[10] Investigation on mechanical properties and microstructural evolution of TC6 titanium alloy subjected to laser peening at cryogenic temperature [J].

Li, Jing ;

Zhou, Jianzhong ;

Feng, Aixin ;

Huang, Shu ;

Meng, Xiankai ;

Sun, Yunhui ;

Sun, Yunjie ;

Tian, Xuliang ;

Huang, Yu .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 734 :291-298

← 1 2 3 →