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《Journal of Materials Engineering》 2007-01
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Fracture Mechanism Analysis of Mg-9Gd-4Y-0.6Zr Alloy from -196℃ to 400℃

XIAO Yang, ZHANG Xin-ming(School of Materials Science and Engineering,Central South University, Changsha 410083, China)  
The fractography of Mg-9Gd-4Y-0.6Zr alloy specimens which were tensioned at different temperatures was observed by optical and scanning electron microscopy, respectively. The results showed that different slip systems were activated at different temperatures, which was responsible for varied deformation mechanism and fracture mechanism. At 25℃, the number of enabled slip systems were few and only slip systems on basal plane were activated, and transgranular cleavage fracture was observed. At -196℃,the number of enabled slip systems increased, prismatic slips maybe occurred and low-temperature plasticity phenomenon happened, while fracture mechanism was microviod coalescence fracture. At 250, 300℃ and 350℃, multisystem slips on basal planes, prismatic planes and pyramidal planes were activated in this alloy, while fracture mechanism was also microviod coalescence fracture. At 400℃, recrystallization happened and grain-boundary sliding in new fine recrystallized grains could deform easily,which was called coarse-grain superplasticity phenomenon, and intergranular shear fracture took place.
【Fund】: 国家基础研究项目(5133001E);; 国家“863”计划项目(2004AA741062;2003AA741043)
【CateGory Index】: TG115
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【References】
Chinese Journal Full-text Database 1 Hits
1 HU Yaobo1,2,DENG Juan1,2,ZHAO Chong1,2,WANG Jingfeng1,2,PAN Fusheng1,2(1 College of Materials Science and Engineering,Chongqing University,Chongqing 400045;2 National Engineering Research Center for Magnesium Alloys,Chongqing 400044);Research Status and Development of Rare Mg-Gd Series Alloys[J];Materials Review;2010-23
【Citations】
Chinese Journal Full-text Database 1 Hits
1 PENG Zhuo-kai, ZHANG Xin-ming, CHEN Jian-mei, XIAO Yang,JIANG Hao, DENG Zhen-zhen(School of Materials Science and Engineering,Central South University, Changsha 410083, China);Effects of Mn, Zr on microstructure andproperties of Mg-Gd-Y alloys[J];The Chinese Journal of Nonferrous Metals;2005-06
【Co-references】
Chinese Journal Full-text Database 10 Hits
1 QU Jiahui,YUE Mingkai,LIU Ye (School of Equipment Engineering,Shenyang University of Science and Technology,Shenyang 110168,China);Research achievements of plastic deformation mechanisms on magnesium alloys[J];Ordnance Material Science and Engineering;2009-02
2 Kong Zhigang Liu Hongbo Zhang Hu (School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China);Effects of Zr addition on structure and properties of Mg-Zr alloy[J];Journal of Beijing University of Aeronautics and Astronautics;2004-10
3 PENG ZhuoKai ZHANG Xinming CHEN Jianmei JIANG Hao XIAO Yang (School of Materials Science and Engineering,Central South University,Changsha 410083,China);Grain refinement mechanism of zirconium in the Mg-9Gd-4Y alloys[J];Journal of University of Science and Technology Beijing;2006-02
4 ZHAO Yan-na~(1),ZHU Yuan-liang~(2),QI Gong-tai~(2)(1.Department of Biologicaland Chemical Engineering,Nanyang Institute of Technology,Nanyang 473004;2.Department of Chemistry,Huazhong University of Science and Technology,Wuhan 430074,China);Effect of Rare Earth(La,Ce) on Galvanic Corrosion of AZ91 Magnesium Alloy[J];Materials Protection;2005-12
5 Shi Changxu Li Hengde (National Natural Science Foundation of China,Beijing 100085) (Tsinghua University,Beijing 100084) Wang Dianzuo Zuo Tieyong (Chinese Academy of Engineering,Beijing 100038) (Beijing Polytechnic University,Beijing 100022) Li Yiyi (Institute of Metal Research,Chinese Academy of Seiences,Shenyang 110015);A Proposal on Accelerating Development of Metallic Magnesium Industry in China[J];Materials Review;2001-04
6 ZHOU Haitao MA Chunjiang ZENG Xiaoqin DING Wenjiang (National Engineering Research Center of Light Alloys Net Forming,School of Material Science and Engineering,Shanghai Jiaotong University,Shanghai 200030,P. R. China);Research and Development Progress in Wrought Magnesium Alloys[J];Materials Review;2003-11
7 SHI Qingzhi LIU Yongchang LI Baoyin (Depart Metallic Mater, College of Mater Sci &Eng, Tianjin University, Tianjin 300072);New Ideas on Strengthening and Toughening of Mg-based Alloys[J];Materials Review;2004-11
8 FAN Caihe CHEN Gang YAN Hongge CHEN Zhenhua (School of Materials Science and Engineering,Hunan University,Changsha 410082);Effect of Rare Earth in Magnesium and Magnesium Alloys[J];Materials Review;2005-07
9 LI Dehui DONG Jie ZENG Xiaoqin LU Chen DING Wenjiang (Light Alloy Net Forming National Engineering Research Center,School of Materials Science and Engineering,Shanghai Jiaotong University,Shanghai 200030);Research Progress of High-performance Magnesium Rare-earth Alloys[J];Materials Review;2005-08
10 HUANG Guangsheng,HUANG Guangjie,WANG Lingyun,PAN Fusheng (School of Material Science and Engineering,Chongqing University,Chongqing 400030);Ductility Enhancement of Wrought Magnesium Alloys[J];Materials Review;2006-01
【Secondary References】
Chinese Journal Full-text Database 2 Hits
1 ZHAN Liang1,WANG Wei1,GAO Dan1,ZHANG Jie1,JIANG Zheng-ao1,LI Young-heng2(1.Shenyang Research Institute of Foundry,Shenyang 110022,Liaoning,China;2.Navy Missile Professional Representative Office in Shenyang,Shenyang 110022,Liaoning,China);Composition Optimization of Heat-Resistant and High-Strength Magnesium Alloy WE54[J];Foundry;2011-02
2 ZHANG Qing,LI Quan-an,ZHANG Xing-yuan,ZHOU Wei(School of Materials Science and Engineering,Henan University of Science and Technology,Luoyang 471003,Henan,China);Research Progress of Heat Resistant Mg-Gd System Magnesium Alloy[J];Foundry;2011-11
【Secondary Citations】
Chinese Journal Full-text Database 1 Hits
1 YU Kun, LI Wenxian, WANG Richu, MA Zhengqing (School of Materials Science and Engineering, Central South University, Changsha 410083, China);Research, development and application of wrought magnesium alloys[J];The Chinese Journal of Nonferrous Metals;2003-02
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