Acta Metall Sin  1998, Vol. 34 Issue (5): 526-530    DOI:

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THE HIGH TEMPERATURE TENSILE BEHAVIORS OF Al_(67)Ti_(25)Mn_8 INTERMETALLICS UNDER DIFFERENT STRAIN RATES

SUN Jian; FU Yunyi; SHI Rong; SUN Xiaoguang; HU Gengxiang (The Public Laboratory of State Education Commission for High Temperature Materials & High Temperature Tests; Shanghai Jiaotong University; Shanghai 200030)

SUN Jian; FU Yunyi; SHI Rong; SUN Xiaoguang; HU Gengxiang (The Public Laboratory of State Education Commission for High Temperature Materials & High Temperature Tests; Shanghai Jiaotong University; Shanghai 200030). THE HIGH TEMPERATURE TENSILE BEHAVIORS OF Al_(67)Ti_(25)Mn_8 INTERMETALLICS UNDER DIFFERENT STRAIN RATES. Acta Metall Sin, 1998, 34(5): 526-530.

Abstract References Related Articles Recommended Metrics Download:  PDF(1865KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The tensile tests of Al67Ti25Mn8 intermetallic compound were performed at 1173 K and at the range of strain rates from 3.34×10-5 to 6.68× 10-4 s-1. The results show that with decreasing strain rates, the yield stress decreases and the tensile ductility increases from 2.8% to 21%. The good high temperature ductility at low strain rates is attributed to dynamic recovery and dynamic recrystallization during deformation. The fractured surfaces of this compound are intergranular, which suggests that the grain boundaries of this alloy are also intrinsic weak. Key words:  tri-aluminide      high temperature deformation      dynamic recovery      dynamic recrystallization      Received:  18 May 1998      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/Y1998/V34/I5/526 1Hu G X, Chen S P, Wu X H, Chen X F J Mater Res, 1991;6: 957 2Kumar K S and Brown S A Philos Mag,1992;65:91 3Hu G X,Chen S P,Wu X H,Rong Y H;Chen X F Proc of the Int Workshop of Ordered Intermetallics,Hangzhou,1992:78 4Brown S A, Kumar K S. Scr Metall Matet 1990; 24: 505 5Kumar K S,Brown S A.Intermetallics,1996;4:231 6Vedula K,Stephens J R. Mater Res Soc Symp Proc,1987 81:381 7Taksugi T, Rikukawa S, Hanada S. Acta Metall Mater, 1992; 40: 1895N [1] 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. [2] LOU Feng, LIU Ke, LIU Jinxue, DONG Hanwu, LI Shubo, DU Wenbo. Microstructures and Formability of the As-Rolled Mg- xZn-0.5Er Alloy Sheets at Room Temperature[J]. 金属学报, 2023, 59(11): 1439-1447. [3] WU Caihong, FENG Di, ZANG Qianhao, FAN Shichun, ZHANG Hao, LEE Yunsoo. Microstructure Evolution and Recrystallization Behavior During Hot Deformation of Spray Formed AlSiCuMg Alloy[J]. 金属学报, 2022, 58(7): 932-942. [4] REN Shaofei, ZHANG Jianyang, ZHANG Xinfang, SUN Mingyue, XU Bin, CUI Chuanyong. Evolution of Interfacial Microstructure of Ni-Co Base Superalloy During Plastic Deformation Bonding and Its Bonding Mechanism[J]. 金属学报, 2022, 58(2): 129-140. [5] JIANG Weining, WU Xiaolong, YANG Ping, GU Xinfu, XIE Qingge. Formation of Dynamic Recrystallization Zone and Characteristics of Shear Texture in Surface Layer of Hot-Rolled Silicon Steel[J]. 金属学报, 2022, 58(12): 1545-1556. [6] NI Ke, YANG Yinhui, CAO Jianchun, WANG Liuhang, LIU Zehui, QIAN Hao. Softening Behavior of 18.7Cr-1.0Ni-5.8Mn-0.2N Low Nickel-Type Duplex Stainless Steel During Hot Compression Deformation Under Large Strain[J]. 金属学报, 2021, 57(2): 224-236. [7] CHEN Wenxiong, HU Baojia, JIA Chunni, ZHENG Chengwu, LI Dianzhong. Post-Dynamic Softening of Austenite in a Ni-30%Fe Model Alloy After Hot Deformation[J]. 金属学报, 2020, 56(6): 874-884. [8] ZHANG Yang, SHAO Jianbo, CHEN Tao, LIU Chuming, CHEN Zhiyong. Deformation Mechanism and Dynamic Recrystallization of Mg-5.6Gd-0.8Zn Alloy During Multi-Directional Forging[J]. 金属学报, 2020, 56(5): 723-735. [9] WU Huajian, CHENG Renshan, LI Jingren, XIE Dongsheng, SONG Kai, PAN Hucheng, QIN Gaowu. Effect of Al Content on Microstructure and Mechanical Properties of Mg-Sn-Ca Alloy[J]. 金属学报, 2020, 56(10): 1423-1432. [10] ZHANG Yong, LI Xinxu, WEI Kang, WAN Zhipeng, JIA Chonglin, WANG Tao, LI Zhao, SUN Yu, LIANG Hongyan. Hot Deformation Characteristics of Novel Wrought Superalloy GH4975 Extruded Rod Used for 850 ℃ Turbine Disc[J]. 金属学报, 2020, 56(10): 1401-1410. [11] Xu LI,Qingbo YANG,Xiangze FAN,Yonglin GUO,Lin LIN,Zhiqing ZHANG. Influence of Deformation Parameters on Dynamic Recrystallization of 2195 Al-Li Alloy[J]. 金属学报, 2019, 55(6): 709-719. [12] Yahui DENG,Yinhui YANG,Jianchun CAO,Hao QIAN. Research on Dynamic Recrystallization Behavior of 23Cr-2.2Ni-6.3Mn-0.26N Low Nickel TypeDuplex Stainless Steel[J]. 金属学报, 2019, 55(4): 445-456. [13] Xiting ZHONG, Lei WANG, Feng LIU. Study on Formation Mechanism of Necklace Structure in Discontinuous Dynamic Recrystallization of Incoloy 028[J]. 金属学报, 2018, 54(7): 969-980. [14] Yusen SU, Yinhui YANG, Jianchun CAO, Yuliang BAI. Research on Hot Working Behavior of Low-NickelDuplex Stainless Steel 2101[J]. 金属学报, 2018, 54(4): 485-493. [15] Yanchun ZHAO, Hao SUN, Chunling LI, Jianlong JIANG, Ruipeng MAO, Shengzhong KOU, Chunyan LI. High Temperature Deformation Behavior of High Strength and Toughness Ti-Ni Base Bulk Metallic Glass Composites[J]. 金属学报, 2018, 54(12): 1818-1824. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed