Acta Metall Sin  1992, Vol. 28 Issue (9): 35-41    DOI:

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IN SITU OBSERVATION OF DEFORMATION AND FRACTURE FOR SUPERALLOY GH169 UNDER COMBINED FATIGUE-CREEP ACTION

TIAN Changsheng; WANG Minsheng; HOU Tiecui DAN Xin'an (Northwestern Polytechnical University; Xi'an)

TIAN Changsheng; WANG Minsheng; HOU Tiecui DAN Xin'an (Northwestern Polytechnical University; Xi'an). IN SITU OBSERVATION OF DEFORMATION AND FRACTURE FOR SUPERALLOY GH169 UNDER COMBINED FATIGUE-CREEP ACTION. Acta Metall Sin, 1992, 28(9): 35-41.

Abstract References Related Articles Recommended Metrics Download:  PDF(3009KB)  Export:  BibTeX | EndNote (RIS)       Abstract  In situ high temperature metalloscopic observation was made of deformation and fracture for superalloy GH169 under combined action of fatigue and creep. The mode of deformation is revealed as slipping, twinning and grain boundary sliding. The mode of failure is dependent upon microstructure. The intergranular cracks arise from W-type voids produced by strees concentration at triple point which would not be relaxed by interior deformation of grains and local deformed region along grain boundaries, and its propagation mechanism is nucleation, growth and linkage of cavities at grain boundaries. Tranagranular cracks result from deformation damage of grain, and its propagation mechanism is shear rupture along slip plane. Key words:  fatigue-creep combined action      deformation      fracture      superalloy GH169      Received:  18 September 1992      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/Y1992/V28/I9/35 1 Hales R. Fatigue Eng Mater Struct, 1980; 3: 339 2 Min B K, Raj R. Acta Metall, 1978; 26: 1007 3 Chen G L, He Q F, ASTM STP, 942． 1988:531 4 乔生儒,田长生.西北工业大学学报,1986;4:171 5 田长生,乔生儒.航空学报,1987;8:A632 6 党新安,西北工业大学硕士学位论文,1988 7 王明升,西北工业大学硕士学位论文,1989 8 候铁翠,西北工业大学硕士学位论文,1989 [1] ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800oC[J]. 金属学报, 2023, 59(9): 1253-1264. [2] XU Yongsheng, ZHANG Weigang, XU Lingchao, DAN Wenjiao. Simulation of Deformation Coordination and Hardening Behavior in Ferrite-Ferrite Grain Boundary[J]. 金属学报, 2023, 59(8): 1042-1050. [3] DING Hua, ZHANG Yu, CAI Minghui, TANG Zhengyou. Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels[J]. 金属学报, 2023, 59(8): 1027-1041. [4] ZHANG Haifeng, YAN Haile, FANG Feng, JIA Nan. Molecular Dynamic Simulations of Deformation Mechanisms for FeMnCoCrNi High-Entropy Alloy Bicrystal Micropillars[J]. 金属学报, 2023, 59(8): 1051-1064. [5] LI Jingren, XIE Dongsheng, ZHANG Dongdong, XIE Hongbo, PAN Hucheng, REN Yuping, QIN Gaowu. Microstructure Evolution Mechanism of New Low-Alloyed High-Strength Mg-0.2Ce-0.2Ca Alloy During Extrusion[J]. 金属学报, 2023, 59(8): 1087-1096. [6] 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. [7] LI Fulin, FU Rui, BAI Yunrui, MENG Lingchao, TAN Haibing, ZHONG Yan, TIAN Wei, DU Jinhui, TIAN Zhiling. Effects of Initial Grain Size and Strengthening Phase on Thermal Deformation and Recrystallization Behavior of GH4096 Superalloy[J]. 金属学报, 2023, 59(7): 855-870. [8] LIU Junpeng, CHEN Hao, ZHANG Chi, YANG Zhigang, ZHANG Yong, DAI Lanhong. Progress of Cryogenic Deformation and Strengthening-Toughening Mechanisms of High-Entropy Alloys[J]. 金属学报, 2023, 59(6): 727-743. [9] WANG Changsheng, FU Huadong, ZHANG Hongtao, XIE Jianxin. Effect of Cold-Rolling Deformation on Microstructure, Properties, and Precipitation Behavior of High-Performance Cu-Ni-Si Alloys[J]. 金属学报, 2023, 59(5): 585-598. [10] WAN Tao, CHENG Zhao, LU Lei. Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu[J]. 金属学报, 2023, 59(4): 567-576. [11] JI Xiumei, HOU Meiling, WANG Long, LIU Jie, GAO Kewei. Modeling and Application of Deformation Resistance Model for Medium and Heavy Plate Based on Machine Learning[J]. 金属学报, 2023, 59(3): 435-446. [12] LI Min, WANG Jijie, LI Haoze, XING Weiwei, LIU Dezhuang, LI Aodi, MA Yingche. Effect of Y on the Solidification Microstructure, Warm Compression Behavior, and Softening Mechanism of Non-Oriented 6.5%Si Electrical Steel[J]. 金属学报, 2023, 59(3): 399-412. [13] GU Ruicheng, ZHANG Jian, ZHANG Mingyang, LIU Yanyan, WANG Shaogang, JIAO Da, LIU Zengqian, ZHANG Zhefeng. Fabrication of Mg-Based Composites Reinforced by SiC Whisker Scaffolds with Three-Dimensional Interpenetrating-Phase Architecture and Their Mechanical Properties[J]. 金属学报, 2022, 58(7): 857-867. [14] WU Jin, YANG Jie, CHEN Haofeng. Fracture Behavior of DMWJ Under Different Constraints Considering Residual Stress[J]. 金属学报, 2022, 58(7): 956-964. [15] 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. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed