Acta Metall Sin  1992, Vol. 28 Issue (1): 1-5    DOI:

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HIGH RESOLUTION STUDY OF TWINS IN Al_(20)Cu_2Mn_3 PHASE

LI Chunzhi;WANG Shuncai;JIN Yan Institute of Aeronautical Materials; Beijing; Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Academia Sinaica; Shenyang

LI Chunzhi;WANG Shuncai;JIN Yan Institute of Aeronautical Materials; Beijing; Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Academia Sinaica; Shenyang. HIGH RESOLUTION STUDY OF TWINS IN Al_(20)Cu_2Mn_3 PHASE. Acta Metall Sin, 1992, 28(1): 1-5.

Abstract References Related Articles Recommended Metrics Download:  PDF(1520KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The dispersoid phase Al_(20)Cu_2Mn_3 in a 2024 Al alloy is commonly composed of twins. An observation of corresponding high resolution image shows that the twin boundary plane is a glide plane other than mirror one. Two neighbouring components of twins are not symmetry of reflection or rotation, but of glide reflection. The "diamond" glide plane is (101) and the glide vector is (1/4)(a--c). Components of twins in the phase take shape of prism with the longitudinal edge being parallel to [010] and side faces being {101} and {100}. Key words:  twin      glide reflection      high resolution image      Al-Cu-Mg alloy      Received:  18 January 1992      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/Y1992/V28/I1/1 1 Robinson K. Philos Mag, 1952; 43: 775 2 Li Chunzhi, Wang shuncai, Bian Weimin, Yan Minggao. In: Chai Junheng, Yao Junen eds. Proc 3rd Beijing Conf and Exib on Instrum Analysis, Beijing, October 27--30, 1989 Beijing: Ying Wai Printing Co. 1989: A27 3 Li Chunzhi, Wang Shuncai, Jin Yan, Hua Mingjian, Yan Minggao. In: Chen C Q, Starke E A Jr. eds. ALUMINUM ALLOYS' 90, Proc 2nd Int Conf on Aluminum Alloy, Beijing, October 9--13 1990, Beijing: International Academic Publisher, 1990: 504 4 王顺才,李春志,边为民.机械工程学报,1990;26(4) :16 [1] ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui. Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys[J]. 金属学报, 2023, 59(9): 1221-1229. [2] BAI Jiaming, LIU Jiantao, JIA Jian, ZHANG Yiwen. Creep Properties and Solute Atomic Segregation of High-W and High-Ta Type Powder Metallurgy Superalloy[J]. 金属学报, 2023, 59(9): 1230-1242. [3] 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. [4] SHAO Xiaohong, PENG Zhenzhen, JIN Qianqian, MA Xiuliang. Unravelling the {\mathrm{10}\overline{\mathrm{1}}\mathrm{2}} Twin Intersection Between LPSO Structure/SFs in Magnesium Alloy[J]. 金属学报, 2023, 59(4): 556-566. [5] WAN Tao, CHENG Zhao, LU Lei. Effect of Component Proportion on Mechanical Behaviors of Laminated Nanotwinned Cu[J]. 金属学报, 2023, 59(4): 567-576. [6] ZHANG Zhefeng, LI Keqiang, CAI Tuo, LI Peng, ZHANG Zhenjun, LIU Rui, YANG Jinbo, ZHANG Peng. Effects of Stacking Fault Energy on the Deformation Mechanisms and Mechanical Properties of Face-Centered Cubic Metals[J]. 金属学报, 2023, 59(4): 467-477. [7] GAO Dong, ZHOU Yu, YU Ze, SANG Baoguang. Selection of Twin Variants in Dynamic Plastic Deformation of Pure Ti at Liquid Nitrogen Temperature[J]. 金属学报, 2022, 58(9): 1141-1149. [8] ZHOU Hongwei, GAO Jianbing, SHEN Jiaming, ZHAO Wei, BAI Fengmei, HE Yizhu. Twin Boundary Evolution Under Low-Cycle Fatigue of C-HRA-5 Austenitic Heat-Resistant Steel at High Temperature[J]. 金属学报, 2022, 58(8): 1013-1023. [9] ZHENG Shijian, YAN Zhe, KONG Xiangfei, ZHANG Ruifeng. Interface Modifications on Strength and Plasticity of Nanolayered Metallic Composites[J]. 金属学报, 2022, 58(6): 709-725. [10] CHEN Yang, MAO Pingli, LIU Zheng, WANG Zhi, CAO Gengsheng. Detwinning Behaviors and Dynamic Mechanical Properties of Precompressed AZ31 Magnesium Alloy Subjected to High Strain Rates Impact[J]. 金属学报, 2022, 58(5): 660-672. [11] GUO Xiangru, SHEN Junjie. Modelling of the Plastic Behavior of Cu Crystal with Twinning-Induced Softening and Strengthening Effects[J]. 金属学报, 2022, 58(3): 375-384. [12] LU Lei, ZHAO Huaizhi. Progress in Strengthening and Toughening Mechanisms of Heterogeneous Nanostructured Metals[J]. 金属学报, 2022, 58(11): 1360-1370. [13] WANG Kaidong, LIU Yunzhong, ZHAN Qiangkun, HUANG Bin. Effect of Adding Methods of Nucleating Agent on Microstructure and Mechanical Properties of Zr Modified Al-Cu-Mg Alloys Prepared by Selective Laser Melting[J]. 金属学报, 2022, 58(10): 1281-1291. [14] PAN Qingsong, CUI Fang, TAO Nairong, LU Lei. Strain-Controlled Fatigue Behavior of Nanotwin- Strengthened 304 Austenitic Stainless Steel[J]. 金属学报, 2022, 58(1): 45-53. [15] DING Ning, WANG Yunfeng, LIU Ke, ZHU Xunming, LI Shubo, DU Wenbo. Microstructure, Texture, and Mechanical Properties of Mg-8Gd-1Er-0.5Zr Alloy by Multi-Directional Forging at High Strain Rate[J]. 金属学报, 2021, 57(8): 1000-1008. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed