An experimental study on crack closure induced by laser peening in pre-cracked aluminum alloy 2024-T351 and fatigue life extension

被引：39
|
作者：
Hu, Yongxiang [1 ]
Cheng, Han [1 ]
Yu, Jianhua [1 ,2 ]
Yao, Zhenqiang [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mech Engn, State Key Lab Mech Syst & Vibrat, Shanghai 200240, Peoples R China
[2] AECC Commercial Aircraft Engine Co Ltd, Shanghai 200240, Peoples R China
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2020年 / 130卷
关键词：
Laser peening; Damage; Fatigue crack propagation; Crack closure; Crack arrest; DIGITAL IMAGE CORRELATION; RESIDUAL-STRESS; GROWTH-PROPERTIES; MICROSTRUCTURE; DAMAGE; PROPAGATION; BEHAVIOR; MODEL; STEEL;
D O I：
10.1016/j.ijfatigue.2019.105232
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This study investigates crack closure induced by laser peening (LP) and its effect on fatigue life extension of 2024-T351 aluminum alloy with initial fatigue crack. LP is applied directly in the initial fatigue crack region. This treatment leads to interesting observations of crack arrest that has not been reported before for LP, and significant fatigue life enhancement. The fatigue life of the LP-treated pre-cracked specimen is 412% and 44.7% higher than the untreated specimen and LP-treated specimen without pre-crack, respectively. The crack closure around the pre-crack resulting from the LP-induced plastic deformation is mainly responsible for fatigue life extension.
引用
收藏
页数：10
相关论文
共 50 条
  • [21] Evaluation residual stress relaxation induced by shot peening parameters and its effect on fatigue of 2024-T351 aluminum alloy
    Ali, Fareg Saeid
    Omran, Abdoulhdi A. Borhana
    Zaroog, Omar Suliman
    Test Engineering and Management, 2019, 81 : 5693 - 5701
  • [22] Study on the wear resistance of 2024-T351 aluminum alloy strengthened by ultrasonic-assisted laser shock peening
    Xiankai Meng
    Zilong Cheng
    Jianzhong Zhou
    Fuyang Song
    Xianhua Zhao
    Wei Wu
    Fei Gao
    Jie Cai
    Wei Xue
    Yang Liu
    Journal of Materials Science, 2025, 60 (13) : 5954 - 5976
  • [23] EFFECT OF DIFFUSED HYDROGEN ON TORSIONAL FATIGUE LIFE OF 2024-T351 ALUMINUM-ALLOY
    KAUFFMANN, CJ
    MABIE, HH
    EXPERIMENTAL MECHANICS, 1978, 18 (05) : N44 - N44
  • [24] Gradient microstructure and vibration fatigue properties of 2024-T351 aluminium alloy treated by laser shock peening
    Meng, Xian-kai
    Wang, Hui
    Tan, Wen-sheng
    Cai, Jie
    Zhou, Jian-zhong
    Liu, Lin
    SURFACE & COATINGS TECHNOLOGY, 2020, 391
  • [25] The effect of laser shock peening on surface integrity and high and very high cycle fatigue properties of 2024-T351 aluminum alloy
    Qin, Zhi
    Li, Bin
    Huang, Xia
    Zhang, Han
    Chen, Rui
    Adeel, Muhammad
    Xue, Hongqian
    OPTICS AND LASER TECHNOLOGY, 2022, 149
  • [26] FATIGUE OF ALUMINUM-ALLOY 2024-T351 IN HUMID AND DRY AIR
    VORIS, HC
    JAHN, MT
    JOURNAL OF MATERIALS SCIENCE, 1990, 25 (11) : 4708 - 4711
  • [27] Experimental and Numerical Analysis of Fatigue Life of Aluminum Al 2024-T351 at Elevated Temperature
    Mazlan, Shahan
    Yidris, Noorfaizal
    Koloor, Seyed Saeid Rahimian
    Petru, Michal
    METALS, 2020, 10 (12) : 1 - 14
  • [28] Observation, analysis and prediction of fretting fatigue in 2024-T351 aluminum alloy
    Szolwinski, MP
    Farris, TN
    WEAR, 1998, 221 (01) : 24 - 36
  • [29] Study of Cutting Forces in Drilling of Aluminum Alloy 2024-T351
    Craciun, Razvan Sebastian
    Teodor, Virgil Gabriel
    Baroiu, Nicusor
    Paunoiu, Viorel
    Morosanu, Georgiana-Alexandra
    MACHINES, 2024, 12 (12)
  • [30] Effect of shot peening on very high cycle fatigue of 2024-T351 aluminium alloy
    Tian, Renhui
    Dong, Jiangfeng
    Liu, Yongjie
    Wang, Qingyuan
    Luo, Yunrong
    MATERIALS EXPRESS, 2020, 10 (07) : 1032 - 1039
12345