Acta Metall Sin  1995, Vol. 31 Issue (4): 183-190    DOI:

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EFFECT OF MICROSTRUCTURE ON FATIGUE CRACK GROWTH OF Ti_3Al-Nb ALLOYS

AI Suhua;GUAN Shaoxuan(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy; of Sciences; Shenyang 110015).FENG Zemin; GE Jingyan(Northeastern University; Shenyang 110006)

AI Suhua;GUAN Shaoxuan(State Key Laboratory for Fatigue and Fracture of Materials; Institute of Metal Research; Chinese Academy; of Sciences; Shenyang 110015).FENG Zemin; GE Jingyan(Northeastern University; Shenyang 110006). EFFECT OF MICROSTRUCTURE ON FATIGUE CRACK GROWTH OF Ti_3Al-Nb ALLOYS. Acta Metall Sin, 1995, 31(4): 183-190.

Abstract References Related Articles Recommended Metrics Download:  PDF(689KB)  Export:  BibTeX | EndNote (RIS)       Abstract  篢he room temperature fatigue crack growth rates fo the Ti3Al-Nb-Mo-Valloys with different microstructures by 3 regimes of heat treatment have been determined. The volume fraction of primary α2-phase,grain sizes of matrix, morphology of β-transformation products and static yield strength are the major factors influential in both the fatigue threshold and fatigue crack growth rate of the alloy. The effect of stress ratio on da / dN is consistent with that on the conventional materials. According to observations of SEM fractographs together with the fatigue crack growth rate measurements, a brief discussion on the fatigue crack propagation behaviour was made. Key words:  intermetallic compound      fatigue crack growth      strees intensity factor      stress ratio      Received:  18 April 1995      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/Y1995/V31/I4/183 1LipsittHA,ShechtmanD,SchafrikR．MetallTrnas,1980;11A:13692YangWJS．JMaterSciLett,1982;1:1993LiuCT,StieglerJOReprintSeries9,ICTH,TriesteItaly,1984;226:6364KhataceA,FlowerHM,WestDRF．JMaterEng,1988;10:375StrychorR,WilliamsJC,SoffaWA．MetallTrans,1988;19A:225 6WittennauerJ,BassiC,Walser B．ScrMetall,1989;23:13817AswathP B,SureshS．MetallTrans,1991:22A:8178RaoKTV,OdetteG R,RichieR O．ActaMetall1992;40:3539张 鹰,李学明,高 扬．材料工程,1992;4:2210ChaveRA,BeeversCJ,BowenP．In:BailonJB,DicksonJIeds．,Fatigue'93,1993;2:100711GaoH,BrownMW,MillerKJ．Fatigue EngMater Struct,1982;5:112ElberW．Eng FracMech,1970,2:3713SureshS．FatigueofMaterialsCambridgeUniversityPress,199114SwainMV,KimNJ．In:KishiT,TakedaN,Kagawa Y eds．,Proc3rdIntSAMPE,Japan,1993:1519 [1] QI Zhao, WANG Bin, ZHANG Peng, LIU Rui, ZHANG Zhenjun, ZHANG Zhefeng. 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