Acta Metall Sin  2005, Vol. 41 Issue (3): 245-250     DOI:

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Calculation of the internal stresses at the γ/γ’ interface of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue

ZHOU Li; LI Shouxin; WANG Yuechen; WANG Zhongguang

Shenyang National Laboratory for Materials Science; Institute of Metal Research;The Chinese Academy of Sciences; Shenyang 110016；Department of Mechanical Engineering; Shenyang Institute of Technology; Shenyang 110168

ZHOU Li; LI Shouxin; WANG Yuechen; WANG Zhongguang. Calculation of the internal stresses at the γ/γ’ interface of DD8 single crystal nickel base superalloy after thermo-mechanical fatigue. Acta Metall Sin, 2005, 41(3): 245-250 .

Abstract References Related Articles Recommended Metrics Download:  PDF(493KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The internal stresses produced by dislocation networks at the γ/γ’ interfaces in a single crystal nickel-base superalloy DD8 has been studied after in phase (IP) and out of phase (OP) thermo-mechanical fatigue (TMF) testing. The results indicate that one of the roles of the dislocation networks at the γ/γ’ interfaces is to relax most of the misfit stress under IP TMF, on the other hand, the existence of the dislocation networks results in the directional coarsening of the γ’ precipitates. While under the OP TMF, the internal stress in the matrix induced by stacking faults does not vary significantly, the γ’ precipitates do not show direction coarsening in OP test. Key words:  single crystal nickel base superalloy      thermo-mechanical fatigue      dislocation network       Received:  29 April 2004      ZTFLH:  TG132.3     TG113.25   Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors ZHOU Li LI Shouxin WANG Yuechen WANG Zhongguang URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y2005/V41/I3/245 [1] Weatherly G C, Nicheolson R B. Philos Mag, 1968; 17: 801 [2] Lesalmonie A, Strudel J L. Philos Mag, 1975; 32: 937 [3] Zhang J H, Hu Z Q, Xu Y B, Wang Z G. Metall Trans, 1992; 23A: 1253 [4] Zhang J X, Murakumo T, Koizumi Y, Koizumi T, Kobayashi T, Harada H, Masaki S J R. Metall Mater Trans, 2002; 33A: 3741 [5] Gabrisch H, Mukherji D, Wahi R P. Philos Mag, 1996; 74A: 229 [6] Gabb T P, Draper S L, Hull D R, MacKay R A, Nathal M V. Mater Sci Eng, 1989; 118A: 59 [7] Wang Y C, Li S H, Ai S H, Liu F, Zhou L, Zhang H. Acta Metall Sin, 2003; 39: 237 (王跃臣,李守新,艾素华,刘峰,周丽,张辉.金属学 报,2003;39:237) [8] Wang Y C, Li S H, Ai S H, Liu F, Zhou L, Zhang H. Acta Metall Sin, 2003; 39: 150 (王跃臣,李守新,艾素华,刘峰,周丽,张辉.金属学 报,2003;39:150) [9] Carry C, Dermarker S, Strudel J L, Wonsiewicz B C. Metall Trans, 1979; 10A: 855 [10] Scheunemann-Frerker G, Muller L, Feller-Kniepmeier M. Philos Mag, 1993; 68A: 193 [11] Probst-Hein M, Dlouhy A, Eggeler G. Acta Mater, 1999; 47: 2497 [12] Zhou L, Li S X, Chen C R, Wang Y C, Zang Q S, Lu K. Z Metallkd, 2002; 4: 315 [13] Zhou L, Li S X, Chen C R, Wang Y C, Zang Q S, Lu K. Mater Sci Eng, 2003; A352: 300 [14] Kraft S, Altenberger I, Mughrabi H. Scr Metall Mater, 1995; 32: 411 [15] Mardhand N, Esperance G L, Pelloux M. ASTM STP 942, 1988: 638 [16] Carry C, Srudel J L. Acta Metall, 1977; 25: 767 [17] Buffiere J Y, Chegnet M C, Ignat M. Scr Metall Mater, 1996; 34: 349 [1] 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. [2] 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. [3] XIE Jun, TIAN Sugui, LIU Jiao, ZHOU Xiaoming, SU Yong. FORMATION AND ANALYSIS OF DISLOCATION NETWORK OF FGH95 POWDER METALLURGY Ni-BASED SUPERALLOY DURING CREEP[J]. 金属学报, 2013, 49(7): 838-844. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed