Abstract Threshold of short through fatigue crack for an Al-Li 8090 alloy wasevaluated to be lower than that of long crack, and to decrease with the shorteningof the crack length. The correlation among the threshold, crack wake and crack tipshielding of the short fatigue crack was discussed. The critical length and lowesttheoretical threshold of short through fatigue crack were presented.
1 Nicholls D J, Martin J W. Aluminum-Lithium Alloy, Birmingham (UK): Material and Component Enginerring Publication Ltd, 1989: 1002 2 Venkateswara Rao K T, Yu W, Rithie R O. Metall Trans, 1988; 19A: 563 3 Birt M J, Beevers C J. ALuminum-Lithium Alloy, Birmingham (UK): Material and Component Engineering PublicationLtd, 1989: 983 4 Venkateswara Rao K T, Yu W, Rithie R O. Metall Trans, 1988; 19A: 549/
CHU Wuyang; LU Rongbang;QIAO Lijie; WANG Yanbin (Department of Materials Physics; University of Science & Technology Beijing; Beijing 100083)CHENG Yihuan; CHEN Hongxing(Baoshan Iron and Steel Corporation; Shanghai 201900);GUAN Yongsheng; YAN Yinglong; SUN Wei(Tianjin Steel Pipe Corporation; Tianjin 300310)Correspondent:CHU Wuyang; professor Tel: (010)62332906; Fax: (010)62327283;E-mail: ljqiao@public.bta.net.cn. THE THRESHOLD STRESS FOR HYDSOGEN-INDUCED CRACKING OF C90 TUBULAR STEELS[J]. 金属学报, 1998, 34(10): 1077-1083.
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CHEN Wenzhe;ZHANG Sa;QIAN Kuangwu (Department of Materials; Fuzhou University; Fuzhou 350002)GU Haicheng (Institute of Materials; Xi'an Jiaotong University; Xi'an 710049)WANG Zhongguang (State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; The Chinese Academy of Sciences; Shenyang 110015). FATIGUE CRACK GROWTH RATES AND FATIGUE THRESHOLDS OF CENTRIFUGAL SPRAY DEPOSITED Ti-48Al-2Mn-2Nb[J]. 金属学报, 1998, 34(1): 70-74.
