CREEP-FATIGUE BEHAVIOUR OF A Ni-BASE SINGLE CRYSTAL ALLOY DD3 AND ITS LIFE PREDICTION
SU Hansheng;WU Zhongtang Beijing Institute of Aeronautical Materials
Cite this article:
SU Hansheng;WU Zhongtang Beijing Institute of Aeronautical Materials. CREEP-FATIGUE BEHAVIOUR OF A Ni-BASE SINGLE CRYSTAL ALLOY DD3 AND ITS LIFE PREDICTION. Acta Metall Sin, 1993, 29(1): 25-32.
Abstract Creep-fatigue behaviour of a Ni-base single crystal alloy DD3 under condi-tion of tension-tension stress was investigated from some concept about strain range parti-tioning (SRP) and strain energy partitioning (SEP). Study of effect of hold time and its quan-titative computation was also made. Using numerical method of SEP (SEP-NCM), creep-fa-tigue life prediction under condition of tension-tension strees was performed.
1 Miner R V, Gayda J, Hebsur M G. ASTM STP 942． 1988; 371 2 Gabb T P, Welsch G, Miner R V, Gayda J. Mater Sci Eng. 1989: A108: 189 3 Duan Z, He J, Ning Y, Dong Z. ASTM STP 942, 1988: 1133 4 Hoffelner W, Melton K N, Wuethrich C. Fatigue Eng Mater Struct, 1983; 6: 77 5 Draprel J M. AD/A059900, 1978, Al--9----Al--43
WANG Xiang;ZHOU Hao;KONG Qingping(Institute of Solid State Physics;Chinese Academy of Sciences;Hefei)(Manuscript received 5 October;1993; in revised form 15 November;1993). CREEP-FATIGUE INTERACTION IN ALLOYS GH30 AND GH34[J]. 金属学报, 1994, 30(5): 195-199.
