Acta Metall Sin  1989, Vol. 25 Issue (3): 51-56    DOI:

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MICROSCOPIC RESEARCH ON IMPROVEMENT OF FATIGUE LIFE OF ALLOY LY12CZ AFTER LASER RADIATION AND ITS DAMAGE EVOLUTION

ZOU Hongcheng;DAI Shujuan;QIAN Zhixiong;LI Guangxia Huazhong University of Science and Technology; Wuhan

ZOU Hongcheng;DAI Shujuan;QIAN Zhixiong;LI Guangxia Huazhong University of Science and Technology; Wuhan. MICROSCOPIC RESEARCH ON IMPROVEMENT OF FATIGUE LIFE OF ALLOY LY12CZ AFTER LASER RADIATION AND ITS DAMAGE EVOLUTION. Acta Metall Sin, 1989, 25(3): 51-56.

Abstract References Related Articles Recommended Metrics Download:  PDF(1863KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The change of microstructure of fatigue specimens before and after la-ser radiation was studied by transmission electron microscopy. The results show thatthe diameter of dislocation cell λ tends to a constant λ_c at fatigue failure. Based onthe principles of continuuous damage mechanics, expressions of the fatigne damagecriterion and processes of fatigue damage evolution for LY12CZ have been derived. Key words:  laser radiation      dislocation cell      fatigue      damage mechanics      Received:  18 March 1989      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1989/V25/I3/51 1 邹鸿承,戴蜀娟,李光霞.新技术新工艺,1988;(2) :4 2 秦国友.定量金相,四川科技出版社,1987:109 3 Lemaitre J, Chuboche J L. J Mech Appl, 1978; 2: 317 4 钱志雄.华中理工大学力学系硕士学位论文,1988I [1] JIANG He, NAI Qiliang, XU Chao, ZHAO Xiao, YAO Zhihao, DONG Jianxin. Sensitive Temperature and Reason of Rapid Fatigue Crack Propagation in Nickel-Based Superalloy[J]. 金属学报, 2023, 59(9): 1190-1200. [2] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229. [3] LI Jiarong, DONG Jianmin, HAN Mei, LIU Shizhong. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. 金属学报, 2023, 59(9): 1201-1208. [4] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. Research Progress on Surface Impact Strengthening Mechanisms and Application of Nickel-Based Superalloys[J]. 金属学报, 2023, 59(9): 1173-1189. [5] ZHANG Lu, YU Zhiwei, ZHANG Leicheng, JIANG Rong, SONG Yingdong. Thermo-Mechanical Fatigue Cycle Damage Mechanism and Numerical Simulation of GH4169 Superalloy[J]. 金属学报, 2023, 59(7): 871-883. [6] ZHANG Bin, TIAN Da, SONG Zhuman, ZHANG Guangping. Research Progress in Dwell Fatigue Service Reliability of Titanium Alloys for Pressure Shell of Deep-Sea Submersible[J]. 金属学报, 2023, 59(6): 713-726. [7] ZHANG Zhefeng, LI Keqiang, CAI Tuo, LI Peng, ZHANG Zhenjun, LIU Rui, YANG Jinbo, ZHANG Peng. Effects of Stacking Fault Energy on the Deformation Mechanisms and Mechanical Properties of Face-Centered Cubic Metals[J]. 金属学报, 2023, 59(4): 467-477. [8] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. Effects of Stress Ratio on the Fatigue Crack Growth Rate Under Steady State of Selective Laser Melted TC4 Alloy with Defects[J]. 金属学报, 2023, 59(10): 1411-1418. [9] HAN Dong, ZHANG Yanjie, LI Xiaowu. Effect of Short-Range Ordering on the Tension-Tension Fatigue Deformation Behavior and Damage Mechanisms of Cu-Mn Alloys with High Stacking Fault Energies[J]. 金属学报, 2022, 58(9): 1208-1220. [10] ZHOU Hongwei, GAO Jianbing, SHEN Jiaming, ZHAO Wei, BAI Fengmei, HE Yizhu. Twin Boundary Evolution Under Low-Cycle Fatigue of C-HRA-5 Austenitic Heat-Resistant Steel at High Temperature[J]. 金属学报, 2022, 58(8): 1013-1023. [11] SONG Wenshuo, SONG Zhuman, LUO Xuemei, ZHANG Guangping, ZHANG Bin. Fatigue Life Prediction of High Strength Aluminum Alloy Conductor Wires with Rough Surface[J]. 金属学报, 2022, 58(8): 1035-1043. [12] TIAN Ni, SHI Xu, LIU Wei, LIU Chuncheng, ZHAO Gang, ZUO Liang. Effect of Pre-Tension on the Fatigue Fracture of Under-Aged 7N01 Aluminum Alloy Plate[J]. 金属学报, 2022, 58(6): 760-770. [13] YANG Qinzheng, YANG Xiaoguang, HUANG Weiqing, SHI Duoqi. Propagation Behaviors of Small Cracks in Powder Metallurgy Nickel-Based Superalloy FGH4096[J]. 金属学报, 2022, 58(5): 683-694. [14] LI Xifeng, LI Tianle, AN Dayong, WU Huiping, CHEN Jieshi, CHEN Jun. Research Progress of Titanium Alloys and Their Diffusion Bonding Fatigue Characteristics[J]. 金属学报, 2022, 58(4): 473-485. [15] SU Kaixin, ZHANG Jiwang, ZHANG Yanbin, YAN Tao, LI Hang, JI Dongdong. High-Cycle Fatigue Properties and Residual Stress Relaxation Mechanism of Micro-Arc Oxidation 6082-T6 Aluminum Alloy[J]. 金属学报, 2022, 58(3): 334-344. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed