Acta Metall Sin  1998, Vol. 34 Issue (11): 1137-1142    DOI:

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ROOM TEMPERATURE MECHANICAL BEHAVIOR OF B2-ORDERED Fe_3Al SINGLE CRYSTALS

ZHENG Weiwei;YANG Wangyue;LIU Qing;SUN Zuqing(Department of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083)

ZHENG Weiwei;YANG Wangyue;LIU Qing;SUN Zuqing(Department of Materials Science and Engineering; University of Science and Technology Beijing; Beijing 100083). ROOM TEMPERATURE MECHANICAL BEHAVIOR OF B2-ORDERED Fe_3Al SINGLE CRYSTALS. Acta Metall Sin, 1998, 34(11): 1137-1142.

Abstract References Related Articles Recommended Metrics Download:  PDF(2312KB)  Export:  BibTeX | EndNote (RIS)       Abstract  A detailed study of room temperature mechanical behavior of B2-ordered Fe3Alsingle crystals had been conducted. It was found that the yield strength, plastic elongation and work-hardening rate were changed with orientations. The highest ductility was measured from the specimen with the orientation near [110], where the plastic elongation is 42%. In contrast, at near [100] the plastic elongation is only 14.1%. The high work-hardening rate of the orientation near [110] was confirmed to be the results of superdislocation interaction, and the dissociation of two-fold superdislocations into single dislocations led to cross-slip, which resulted in further increase in elongation. The low work-hardening rate of near [211] was due to single active slip system and the superdislocations kept two-fold until the specimen was fractured. Key words:  Fe_3Al      mechanical behavior      anisotropy      Received:  18 November 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/I11/1137 1 Labrman D F,Field R D,Darolia R.Mat Soc Symp Proc.1993;288:679 2 Wolfgang S,Christian H,Heinrich M.Z Metallk,1993;84:294 3 Leamy H J, Kayser F X,Mardinkowski M J.Phil Mag A;1969;2:763 4 Leamy H J,Kayser F X,Mardinkowski M J.Phil May A;1969;20:779 5 Mao W,Sun Z. Scr Metall Mater;1993;29:217 6 Mao W,Sun Z.Mat Sci Forum;1994;157-162:1009 7 Mao W M,Sun Z Q.Mat Res Soc Symp Proc,1993;288:375 8 Sun Z Q,Mao W M.Acta Metall Sin,1995;8:369 9 Leamey H,Kayser F X. Phys Status Solidi,1969;34:765Y [1] WANG Kai, JIN Xi, JIAO Zhiming, QIAO Junwei. Mechanical Behaviors and Deformation Constitutive Equations of CrFeNi Medium-Entropy Alloys Under Tensile Conditions from 77 K to 1073 K[J]. 金属学报, 2023, 59(2): 277-288. [2] ZHANG Zixuan, YU Jinjiang, LIU Jinlai. Anisotropy of Stress Rupture Property of Ni Base Single Crystal Superalloy DD432[J]. 金属学报, 2023, 59(12): 1559-1567. [3] GE Jinguo, LU Zhao, HE Siliang, SUN Yan, YIN Shuo. Anisotropy in Microstructures and Mechanical Properties of 2Cr13 Alloy Produced by Wire Arc Additive Manufacturing[J]. 金属学报, 2023, 59(1): 157-168. [4] GAO Yubi, DING Yutian, LI Haifeng, DONG Hongbiao, ZHANG Ruiyao, LI Jun, LUO Quanshun. Effect of Deformation Rate on the Elastic-Plastic Deformation Behavior of GH3625 Alloy[J]. 金属学报, 2022, 58(5): 695-708. [5] LUO Xuan, HAN Fang, HUANG Tianlin, WU Guilin, HUANG Xiaoxu. Microstructure and Mechanical Properties of Layered Heterostructured Mg-3Gd Alloy[J]. 金属学报, 2022, 58(11): 1489-1496. [6] LU Lei, ZHAO Huaizhi. Progress in Strengthening and Toughening Mechanisms of Heterogeneous Nanostructured Metals[J]. 金属学报, 2022, 58(11): 1360-1370. [7] WANG Di, HUANG Jinhui, TAN Chaolin, YANG Yongqiang. Review on Effects of Cyclic Thermal Input on Microstructure and Property of Materials in Laser Additive Manufacturing[J]. 金属学报, 2022, 58(10): 1221-1235. [8] JIANG Minqiang, GAO Yang. Structural Rejuvenation of Metallic Glasses and Its Effect on Mechanical Behaviors[J]. 金属学报, 2021, 57(4): 425-438. [9] BI Sheng, LI Zechen, SUN Haixia, SONG Baoyong, LIU Zhenyu, XIAO Bolv, MA Zongyi. Microstructure and Mechanical Properties of Carbon Nanotubes-Reinforced 7055Al Composites Fabricated by High-Energy Ball Milling and Powder Metallurgy Processing[J]. 金属学报, 2021, 57(1): 71-81. [10] LIU Jinlai, YE Lihua, ZHOU Yizhou, LI Jinguo, SUN Xiaofeng. Anisotropy of Elasticity of a Ni Base Single Crystal Superalloy[J]. 金属学报, 2020, 56(6): 855-862. [11] HU Bin,LI Shusuo,PEI Yanling,GONG Shengkai,XU Huibin. Influence of Small Misorientation from <111> on Creep Properties of a Ni-Based Single Crystal Superalloy[J]. 金属学报, 2019, 55(9): 1204-1210. [12] Aidong TU, Chunyu TENG, Hao WANG, Dongsheng XU, Yun FU, Zhanyong REN, Rui YANG. Molecular Dynamics Simulation of the Structure and Deformation Behavior of γ/α2 Interface in TiAl Alloys[J]. 金属学报, 2019, 55(2): 291-298. [13] WANG Li,HE Yufeng,SHEN Jian,ZHENG Wei,LOU Langhong,ZHANG Jian. Effect of Secondary Orientation on Oxidation Anisotropy Around the Holes of Single Crystal Superalloy During Thermal Fatigue Tests[J]. 金属学报, 2019, 55(11): 1417-1426. [14] HE Xianmei, TONG Liuniu, GAO Cheng, WANG Yichao. Effect of Nd Content on the Structure and Magnetic Properties of Si(111)/Cr/Nd-Co/Cr Thin Films Prepared by Magnetron Sputtering[J]. 金属学报, 2019, 55(10): 1349-1358. [15] Xiaoqin MA, Qingfeng ZHAN, Jincai LI, Qingfang LIU, Baomin WANG, Runwei LI. Influence of Oblique Sputtering on Stripe Magnetic Domain Structure and Magnetic Anisotropy of CoFeB Thin Films[J]. 金属学报, 2018, 54(9): 1281-1288. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed