Acta Metall Sin  1994, Vol. 30 Issue (11): 507-514    DOI:

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INFLUENCE OF DEFORMATION TEMPERATURE ON α_2-PHASE SLIP SYSTEMS OF A Ti_3Al ALLOY

SUN Fusheng;GAO Wen;CAO Chunxiao(Institute of Aeronautical Materials; Beijing)(Manuscript received 31 August; 1993; in revised form 22 November; 1993)

SUN Fusheng;GAO Wen;CAO Chunxiao(Institute of Aeronautical Materials; Beijing)(Manuscript received 31 August; 1993; in revised form 22 November; 1993). INFLUENCE OF DEFORMATION TEMPERATURE ON α_2-PHASE SLIP SYSTEMS OF A Ti_3Al ALLOY. Acta Metall Sin, 1994, 30(11): 507-514.

Abstract References Related Articles Recommended Metrics Download:  PDF(593KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The tensile deformation mechanism of α_2-phase (DO_(19)) in a Ti-25Al-10Nb-3V-1Mo alloy at 25—700℃ was studied. In accordance with . =0 invisibility criterion, dislocation types and slip systems were analysed in a TEM equipped with a side entry goniometer stage capable of a ± 45°tilt on X- and Y-axis operating under two-beam condition. Experimental results show that the majority of slip systems activated at 25—700℃ are type dislocation on prismatic and basal planes. A few of / 2 type dislocation pairs on pyramidal plane are found at 25℃, so a large amount of twinning found at 400℃.The density of/2 type dislocation pairs decrease with the increase of temperature. No/2 type dislocation pair is found at 700℃, but some type dislocation pairs are activated at 700℃. Correspondent:SUN Fusheng, senior engineer,（Institute of Aeronautical Materials, Beijing 100095） Key words:  Ti_3Al alloy      deformation temperature      slip system      Received:  18 November 1994      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/Y1994/V30/I11/507 1BlackburnMJ,SmithMP．AirForceTechRepAFWAL-TR-81-4046,19812LipsittHA．In:C．C．Koch,LiuCT．StoloffNSeds．,HighTemperatureOrderedIntermetallicAl-loys,Pittsburgh,PA:MRS,1985:3513YongWJS．MetallTrans,1982:18A:3244CourtSA,LorettoMH,FraserHL．ScrMetall,1987;21:9975ThomasM,VasselA,VeyssiereP．ScrMetall,1987;21:5016WilliamsJC．In:WilliamsJC,BeloyAFeds．,TitaniumandTitaniumAlloys,Vol．2,NewYork:PlenumPress,1982:14777 SastrySM,LipsittHA．MetallTrans,1977;8A:15438BanerjeeD,GogiaAK．NandyTK,MetallTrans,1990;21A:6279孙福生,李成功,曹春晓．材料工程,1992;7-9:3210FriedalJ．Dislocation．PergamonPress,1964p [1] Shixin XU, Wei YU, Shujia LI, Kun WANG, Qisong SUN. Effects of Pre-Deformation Temperature on Nanobainite Transformation Kinetics and Microstructure[J]. 金属学报, 2018, 54(8): 1113-1121. [2] Shoudong CHEN,Xianghua LIU,Lizhong LIU,Meng SONG. CRYSTAL PLASTICITY FINITE ELEMENT SIMULA- TION OF SLIP AND DEFORMATION IN ULTRA- THIN COPPER STRIP ROLLING[J]. 金属学报, 2016, 52(1): 120-128. [3] ZHU Chuanlin, ZHANG Junbao, CHENG Congqian, ZHAO Jie. INFLUENCE OF DEFORMATION TEMPERATURE ON HOT DEFORMATION BEHAVIOR OF COLD SPRAYED 304 STAINLESS STEEL COATING MATERIAL[J]. 金属学报, 2013, 49(10): 1275-1280. [4] QIN Xiaomei CHEN Liqing DI Hongshuang DENG Wei. EFFECT OF DEFORMATION TEMPERATURE ON TENSILE DEFORMATION MECHANISM OF Fe-23Mn-2Al-0.2C TWIP STEEL[J]. 金属学报, 2011, 47(9): 1117-1122. [5] LIU Jiangtao;WANG Zhongguang;SHANG Jianku. DEFORMATION BEHAVIORS OF [110] AND [112]　ORIENTED β-Sn SINGLE CRYSTALS[J]. 金属学报, 2008, 44(12): 1409-1414. [6] HUI Weijun; TIAN Peng; DONG Han; SU Shihuai; YU Tongren; WENG Yuqing. Influence of Deformation Temperature on the Microstructure Transformation in Medium Carbon Steel[J]. 金属学报, 2005, 41(6): 611-616 . [7] SU Jilong; HU Gengkai. MICROMECHANICAL STUDY ON YIELD STRESS AND THE EFFECTS OF TWINNING FOR γ-TiAl-BASED PST CRYSTALS[J]. 金属学报, 2005, 41(12): 1243-1248 . [8] WU Jiansheng; LIN Dongliang(Shanghai Jiao Tong University)(Manuscript received 11 October;1993; in revised form 20 December; 1993). SLIP SYSTEMS AND THEIR CHARACTERISTICS OF Nb SINGLE CRYSTALS UNDER TENSION, COMPRESSION AND CYCLIC DEFORMATION[J]. 金属学报, 1994, 30(5): 187-194. [9] XU Rui;XU Daming;LI Qingchun(Harbin institute of Technology);CUI Yuyou; LI Dong; HU Zhuangqi(Institute of Metal Research; Chinese Academy of Sciences;Shenyang). MICROSTRUCTURE OF RAPIDLY SOLIDIFIED Ti_3Al-BASE ALLOYS[J]. 金属学报, 1994, 30(12): 545-550. [10] NING Hua;ZHANG Lixin Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang. METALLOGRAPHIC STUDY ON SEGREGATION BEHAVIOUR OF P IN COLD ROLLED Fe-P ALLOYS DURING ANNEALING[J]. 金属学报, 1990, 26(5): 34-38. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed