Acta Metall Sin  1994, Vol. 30 Issue (1): 20-24    DOI:

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ROOM TEMPERATURE MECHANICAL PROPERTIES OF ORDERED TiAl＋La ALLOYS

CHEN Shiqi;QU Xuanhui;LEI Changming;HUANG Baiyun(Central South University of Technologv;Changsha)(Manuscript received 26 August;1993;in revised form 30 October;1993)

CHEN Shiqi;QU Xuanhui;LEI Changming;HUANG Baiyun(Central South University of Technologv;Changsha)(Manuscript received 26 August;1993;in revised form 30 October;1993). ROOM TEMPERATURE MECHANICAL PROPERTIES OF ORDERED TiAl＋La ALLOYS. Acta Metall Sin, 1994, 30(1): 20-24.

Abstract References Related Articles Recommended Metrics Download:  PDF(394KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The strength and ductility of Ti-48Al may be improved by adding certain amount of La and approached to optimal values with increasing to 1.0 and 0.2 at.-% La respectively.It seems to be noticeable that the optimal ductility of TiAl alloy containing La is higher beyond twice than that free from La.Observations showed that the improvement may be caused by the La due to homogenize and refine the TiAl microstructure,to form La2O3 particles and to reduce O2 content in matrix. However,excess La addition would result in forming coarse oxide particles and some pores,thus its mechanical properties deteriorate.Correspondent:CHEN Shiqi,lecturer,(Powder Metallurgy Research Institute,Central South University of Technology,Changsha 410083) Key words:  La      TiAl      mechanical property      Received:  18 January 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/I1/20 1曲选辉,黄伯云,吕海波,黄培立．稀有金属科学与工程,1993,22(1):112KawabataT,TadanoM,IzumiO．ScriptaMetall,1988;22:17253VasudevanVK,CourtSA．KurathP,FraserHL．ScriptaMelall,1989:23:9074熊翔,黄伯云,雷长明,吕海波．稀有金属科学与工程,1992;21:375《稀土》编写组编,稀土(下)．北京:冶金工业出版社,1978;353 [1] LI Jiarong, DONG Jianmin, HAN Mei, LIU Shizhong. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. 金属学报, 2023, 59(9): 1201-1208. [2] 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. [3] 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. [4] 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. [5] 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. [6] CHEN Jia, GUO Min, YANG Min, LIU Lin, ZHANG Jun. Effects of W Concentration on Creep Microstructure and Property of Novel Co-Based Superalloys[J]. 金属学报, 2023, 59(9): 1209-1220. [7] BI Zhongnan, QIN Hailong, LIU Pei, SHI Songyi, XIE Jinli, ZHANG Ji. Research Progress Regarding Quantitative Characterization and Control Technology of Residual Stress in Superalloy Forgings[J]. 金属学报, 2023, 59(9): 1144-1158. [8] 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. [9] LIU Wei, CHEN Wanqi, MA Menghan, LI Kailun. Review of Irradiation Damage Behavior of Tungsten Exposed to Plasma in Nuclear Fusion[J]. 金属学报, 2023, 59(8): 986-1000. [10] 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. [11] 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. [12] ZHANG Haifeng, YAN Haile, FANG Feng, JIA Nan. Molecular Dynamic Simulations of Deformation Mechanisms for FeMnCoCrNi High-Entropy Alloy Bicrystal Micropillars[J]. 金属学报, 2023, 59(8): 1051-1064. [13] 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. [14] MU Yahang, ZHANG Xue, CHEN Ziming, SUN Xiaofeng, LIANG Jingjing, LI Jinguo, ZHOU Yizhou. Modeling of Crack Susceptibility of Ni-Based Superalloy for Additive Manufacturing via Thermodynamic Calculation and Machine Learning[J]. 金属学报, 2023, 59(8): 1075-1086. [15] XU Yongsheng, ZHANG Weigang, XU Lingchao, DAN Wenjiao. Simulation of Deformation Coordination and Hardening Behavior in Ferrite-Ferrite Grain Boundary[J]. 金属学报, 2023, 59(8): 1042-1050. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed