Acta Metall Sin  1997, Vol. 33 Issue (7): 683-689    DOI:

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MICROSTRUCTURE CHARACTERISTICS OF A HIGH DUCTILITY γ-TiAL ALLOY

CHEN Xiaoqun;HUANG Baiyun;HE Yuehui;QU Xuanhui (Central South University of Technology; Changrha 410083); LEI Changhui (Beting Laboratory o.f Electron Microscopy; Chinese Academy of Sciences; Beijing 100080)

CHEN Xiaoqun;HUANG Baiyun;HE Yuehui;QU Xuanhui (Central South University of Technology; Changrha 410083); LEI Changhui (Beting Laboratory o.f Electron Microscopy; Chinese Academy of Sciences; Beijing 100080). MICROSTRUCTURE CHARACTERISTICS OF A HIGH DUCTILITY γ-TiAL ALLOY. Acta Metall Sin, 1997, 33(7): 683-689.

Abstract References Related Articles Recommended Metrics Download:  PDF(3220KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The microstructure and mechanical properties of a titanium aluminide alloy, Ti-33Al-3Cr-0.5Mo, under a multi-step thermo-mechanical treatment were studied. A sub-duplex microstructure with fine equiaxial y grains as the major phase and β2, α2 as the minor phases was obtained after final heat treatment at 1250℃, for 4h+controlled cooling.Tensile elongation for the alloy can reach 5.07% at room temperature. The principal reasons for disproving elongation are the refine of grain and improvment of grain boundary structure. Key words:  TiAl alloy      microstructure      mechanical property      Received:  18 July 1997      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/Y1997/V33/I7/683 1Shechtman D, Blackburn M J3 Ljpsitt H A Metall Trans, 1974; SA: 1373 2 Chan K S, Kim Y W. Metall Trans, 1992; 23A: 1663 3 KimYW,DimidukDM.JMet 1991;43:40 4 TsuHmotoT,HaghimotoK.Mater Res Soc Symp Proc,1989;33:391 5 KimYW.Acta Metall Mater, 1992;40: 1211 6黄伯云,贺跃辉,曲选辉,雷长明.中南工业大学学报,1995;26:632 7 ZhengY,ZhaoL,TangriK.ScrMetallMaler,1992;26:219 8QuXH,Huang B Y.J Central South Uni Technol,1994;2(1):12 9Sun Y Q,Ha—ledingPM,CristianJW.Philos Mag,1993;68A:471 10黄伯云,贺跃辉,曲选辉,陈小群有色金属学报, 1996; 6(2): 52 11 OhMH,InuiH,NakamuraA,YamauuchiM.ActaMetallMater,1992;40:167 12 WcenderllchW,KremserTH,FrommeyerG.ActaMetallMater, 1993;41:1971M [1] ZHENG Liang, ZHANG Qiang, LI Zhou, ZHANG Guoqing. Effects of Oxygen Increasing/Decreasing Processes on Surface Characteristics of Superalloy Powders and Properties of Their Bulk Alloy Counterparts: Powders Storage and Degassing[J]. 金属学报, 2023, 59(9): 1265-1278. [2] ZHANG Leilei, CHEN Jingyang, TANG Xin, XIAO Chengbo, ZHANG Mingjun, YANG Qing. Evolution of Microstructures and Mechanical Properties of K439B Superalloy During Long-Term Aging at 800oC[J]. 金属学报, 2023, 59(9): 1253-1264. [3] LU Nannan, GUO Yimo, YANG Shulin, LIANG Jingjing, ZHOU Yizhou, SUN Xiaofeng, LI Jinguo. Formation Mechanisms of Hot Cracks in Laser Additive Repairing Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1243-1252. [4] WANG Lei, LIU Mengya, LIU Yang, SONG Xiu, MENG Fanqiang. Research Progress on Surface Impact Strengthening Mechanisms and Application of Nickel-Based Superalloys[J]. 金属学报, 2023, 59(9): 1173-1189. [5] GONG Shengkai, LIU Yuan, GENG Lilun, RU Yi, ZHAO Wenyue, PEI Yanling, LI Shusuo. Advances in the Regulation and Interfacial Behavior of Coatings/Superalloys[J]. 金属学报, 2023, 59(9): 1097-1108. [6] ZHANG Jian, WANG Li, XIE Guang, WANG Dong, SHEN Jian, LU Yuzhang, HUANG Yaqi, LI Yawei. Recent Progress in Research and Development of Nickel-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1109-1124. [7] LIU Xingjun, WEI Zhenbang, LU Yong, HAN Jiajia, SHI Rongpei, WANG Cuiping. Progress on the Diffusion Kinetics of Novel Co-based and Nb-Si-based Superalloys[J]. 金属学报, 2023, 59(8): 969-985. [8] DING Hua, ZHANG Yu, CAI Minghui, TANG Zhengyou. Research Progress and Prospects of Austenite-Based Fe-Mn-Al-C Lightweight Steels[J]. 金属学报, 2023, 59(8): 1027-1041. [9] CHEN Liqing, LI Xing, ZHAO Yang, WANG Shuai, FENG Yang. Overview of Research and Development of High-Manganese Damping Steel with Integrated Structure and Function[J]. 金属学报, 2023, 59(8): 1015-1026. [10] LI Jingren, XIE Dongsheng, ZHANG Dongdong, XIE Hongbo, PAN Hucheng, REN Yuping, QIN Gaowu. Microstructure Evolution Mechanism of New Low-Alloyed High-Strength Mg-0.2Ce-0.2Ca Alloy During Extrusion[J]. 金属学报, 2023, 59(8): 1087-1096. [11] YUAN Jianghuai, WANG Zhenyu, MA Guanshui, ZHOU Guangxue, CHENG Xiaoying, WANG Aiying. Effect of Phase-Structure Evolution on Mechanical Properties of Cr2AlC Coating[J]. 金属学报, 2023, 59(7): 961-968. [12] SUN Rongrong, YAO Meiyi, WANG Haoyu, ZHANG Wenhuai, HU Lijuan, QIU Yunlong, LIN Xiaodong, XIE Yaoping, YANG Jian, DONG Jianxin, CHENG Guoguang. High-Temperature Steam Oxidation Behavior of Fe22Cr5Al3Mo-xY Alloy Under Simulated LOCA Condition[J]. 金属学报, 2023, 59(7): 915-925. [13] ZHANG Deyin, HAO Xu, JIA Baorui, WU Haoyang, QIN Mingli, QU Xuanhui. Effects of Y2O3 Content on Properties of Fe-Y2O3 Nanocomposite Powders Synthesized by a Combustion-Based Route[J]. 金属学报, 2023, 59(6): 757-766. [14] GUO Fu, DU Yihui, JI Xiaoliang, WANG Yishu. Recent Progress on Thermo-Mechanical Reliability of Sn-Based Alloys and Composite Solder for Microelectronic Interconnection[J]. 金属学报, 2023, 59(6): 744-756. [15] FENG Aihan, CHEN Qiang, WANG Jian, WANG Hao, QU Shoujiang, CHEN Daolun. Thermal Stability of Microstructures in Low-Density Ti2AlNb-Based Alloy Hot Rolled Plate[J]. 金属学报, 2023, 59(6): 777-786. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed