Acta Metall Sin  1996, Vol. 32 Issue (5): 479-483    DOI:

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EFFECTS OF TRACE Li ADDITION ON MECHANICAL PROPERTIES OF Ni_3Al

(ZHANG Yingjiu; XIE Youqing; LI Weimin; TANG Renzheng; GAO Kunyuan; LU Weijie; CHEN Linghui (Central South University of Technology; Changsha 410083)(Manuscript received 1 995-07-20; in revised form 1995-12-01)

(ZHANG Yingjiu; XIE Youqing; LI Weimin; TANG Renzheng; GAO Kunyuan; LU Weijie; CHEN Linghui (Central South University of Technology; Changsha 410083)(Manuscript received 1 995-07-20; in revised form 1995-12-01). EFFECTS OF TRACE Li ADDITION ON MECHANICAL PROPERTIES OF Ni_3Al. Acta Metall Sin, 1996, 32(5): 479-483.

Abstract References Related Articles Recommended Metrics Download:  PDF(322KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The mechanical properties of Ni3Al alloys containing trace Li have been studied. It is found that trace Li may improve their yield strength and a proper amount may improve the ductility of polycrystalline Ni3Al alloys and change the fracture model from the inter-granular to the mixture of inter-and trans-granular. But neither improvement over brittleness at medium temperature nor effect on the ductility of polycrystalline Ni3Al+B alloys is satisfactory. XPS seems to indicate that Li atoms segregate to grain boundaries of Ni3Al alloys. According to this, preliminary explications of Li ductiling Ni3Al alloys might been made. Key words:  Ni_3Al      lithium      mechanical property      grain boundary      Received:  18 May 1996      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/Y1996/V32/I5/479 1青木青,和泉修．日本金属学会志,1979;43:11902MasahashiN,TakasugiT,IzumiO．ActaMetall,1988;36:18233郑志,郭建亭,吴伟文,孙超,朱耀霄．材料工程,1992;7:404郭建亭,谷月峰,林栋梁．金属学报,1995;31:A1205GeorgeEP,LiuCT,DopeDP．ScrMetallMater,1992;27:3656ChibaA,etal．Proc3rdJapanInternalionalSAMPE,Tokyo:MeguroekiHigaShiguchiBidg,1993:11837LiuCT,WhiteCT,HostonTA．ActaMetall,1985;33:213~ [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] 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. [3] 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. [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 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. [6] 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. [7] 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. [8] 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. [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] CHANG Songtao, ZHANG Fang, SHA Yuhui, ZUO Liang. Recrystallization Texture Competition Mediated by Segregation Element in Body-Centered Cubic Metals[J]. 金属学报, 2023, 59(8): 1065-1074. [11] WANG Zongpu, WANG Weiguo, Rohrer Gregory S, CHEN Song, HONG Lihua, LIN Yan, FENG Xiaozheng, REN Shuai, ZHOU Bangxin. {111}/{111} Near Singular Boundaries in an Al-Zn-Mg-Cu Alloy Recrystallized After Rolling at Different Temperatures[J]. 金属学报, 2023, 59(7): 947-960. [12] LI Fulin, FU Rui, BAI Yunrui, MENG Lingchao, TAN Haibing, ZHONG Yan, TIAN Wei, DU Jinhui, TIAN Zhiling. Effects of Initial Grain Size and Strengthening Phase on Thermal Deformation and Recrystallization Behavior of GH4096 Superalloy[J]. 金属学报, 2023, 59(7): 855-870. [13] 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. [14] WU Dongjiang, LIU Dehua, ZHANG Ziao, ZHANG Yilun, NIU Fangyong, MA Guangyi. Microstructure and Mechanical Properties of 2024 Aluminum Alloy Prepared by Wire Arc Additive Manufacturing[J]. 金属学报, 2023, 59(6): 767-776. [15] ZHANG Dongyang, ZHANG Jun, LI Shujun, REN Dechun, MA Yingjie, YANG Rui. Effect of Heat Treatment on Mechanical Properties of Porous Ti55531 Alloy Prepared by Selective Laser Melting[J]. 金属学报, 2023, 59(5): 647-656. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed