The effect of laser shock peening, shot peening and their combination on the microstructure and fatigue properties of Ti-6Al-4V titanium alloy

被引：96
作者：
Luo, Xuekun [1 ]
Dang, Ning [2 ]
Wang, Xin [1 ]
机构：
[1] AECC Beijing Inst Aeronaut Mat, Beijing 100095, Peoples R China
[2] Northwestern Polytech Univ, Sch Aeronaut, Xian 710072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2021年 / 153卷
关键词：
Surface treatments; Shot peening; Microstructures; Residual stresses; Fractography; FOREIGN-OBJECT DAMAGE; CRACK-GROWTH; MECHANICAL-PROPERTIES; ALUMINUM-ALLOY; INITIATION; STRENGTH; BEHAVIOR;
D O I：
10.1016/j.ijfatigue.2021.106465
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this work, the effect of a novel post process integrating laser shock peening (LSP) with shot peening (SP) on the fatigue property of Ti-6Al-4V titanium alloy is investigated. The fatigue life can be improved (up to 9.3 times) by this post-process. The compressive residual stress (CRS) distribution and dislocation-gradient microstructure obtained were found to be responsible for the improvement. The fatigue crack initiation was hindered by the high-density dislocation layer with high CRS value on the surface and maximum CRS in the sub-surface, while the crack propagation was retarded by the dislocation proliferation layer with large CRS gradient.
引用
收藏
页数：11
相关论文
共 32 条
  • [1] An examination of the effects from surface texture on the strength of fiber reinforced plastics
    Arola, D
    Ramulu, M
    [J]. JOURNAL OF COMPOSITE MATERIALS, 1999, 33 (02) : 102 - 123
  • [2] High- and very high-cycle plain fatigue resistance of shot peened high-strength aluminum alloys: The role of surface morphology
    Benedetti, M.
    Fontanari, V.
    Bandini, M.
    Savio, E.
    [J]. INTERNATIONAL JOURNAL OF FATIGUE, 2015, 70 : 451 - 462
  • [3] In-situ synchrotron radiation study of the aging response of Ti-6Al-4V alloy with different starting microstructures
    Callegari, B.
    Oliveira, J. P.
    Aristizabal, K.
    Coelho, R. S.
    Brito, P. P.
    Wu, L.
    Schell, N.
    Soldera, F. A.
    Muecklich, F.
    Pinto, H. C.
    [J]. MATERIALS CHARACTERIZATION, 2020, 165 (165)
  • [4] New insights into the microstructural evolution of Ti-5Al-5Mo-5V-3Cr alloy during hot working
    Callegari, B.
    Oliveira, J. P.
    Coelho, R. S.
    Brito, P. P.
    Schell, N.
    Soldera, F. A.
    Muecklich, F.
    Sadik, M. I.
    Garcia, J. L.
    Pinto, H. C.
    [J]. MATERIALS CHARACTERIZATION, 2020, 162
  • [5] Effect of TiN/Ti coating combined with laser shock peening pre-treatment on the fatigue strength of Ti-6Al-4V titanium alloy
    Cao, Xin
    He, Weifeng
    Liao, Bin
    He, Guangyu
    Jiao, Yang
    Huang, Da
    Wang, Shiguang
    [J]. SURFACE & COATINGS TECHNOLOGY, 2020, 403
  • [6] Effects of heat treatment combined with laser shock peening on wire and arc additive manufactured Ti17 titanium alloy: Microstructures, residual stress and mechanical properties
    Chi, Jiaxuan
    Cai, Zhongyi
    Wan, Zhandong
    Zhang, Hongqiang
    Chen, Zhenlin
    Li, Liuhe
    Li, Ying
    Peng, Peng
    Guo, Wei
    [J]. SURFACE & COATINGS TECHNOLOGY, 2020, 396
  • [7] Effects of stress ratio and temperature on fatigue crack growth in a Ti-6Al-4V alloy
    Ding, J
    Hall, R
    Byrne, J
    [J]. INTERNATIONAL JOURNAL OF FATIGUE, 2005, 27 (10-12) : 1551 - 1558
  • [8] Experimental investigation and fatigue life prediction for 7475-T7351 aluminum alloy with and without shot peening-induced residual stresses
    Gao, Y. K.
    Wu, X. R.
    [J]. ACTA MATERIALIA, 2011, 59 (09) : 3737 - 3747
  • [9] Effect of laser shock peening on tribological properties of magnesium alloy ZK60
    Guo, Yu
    Wang, Shouren
    Liu, Wentao
    Sun, Zhaolei
    Zhu, Guodong
    Xiao, Teng
    [J]. TRIBOLOGY INTERNATIONAL, 2020, 144 (144)
  • [10] A comprehensive investigation on the effects of laser and shot peening on fatigue crack growth in friction stir welded AA 2195 joints
    Hatamleh, Omar
    [J]. INTERNATIONAL JOURNAL OF FATIGUE, 2009, 31 (05) : 974 - 988
1234