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results. Key words: extruded AZ91D Mg alloy; dynamic compression experiment; constitutive behavior; numerical simulation 镁合金由于具有密度低,比强度高,比弹性模量大,散热好,消震性好等优点而被广泛应用于航空航天,汽车,化工等领域[1-3].AZ91D镁合金是目前工业上应用最广泛的镁合...-extrusion heat treatments on microstructure and anisotropy of mechanical properties in a Mg-Al-Zn alloy[J]. Materials and Design, 2013, 51: 870-875. [9] 杨勇彪, 王富耻, 谭成文, 才鸿年. 镁合金动态力学行为研究进展[J]. 兵器材料科学与工程......
Trans. Nonferrous Met. Soc. China 25(2015) 3611-3617 Influence of temperature and strain rate on serration type transition in NZ31 Mg alloy Wen-hui WANG1,2, Di WU2, Rong-shi CHEN2, Chang-sheng LOU1 1... effect (PLC), in NZ31 Mg alloy. The PLC effect in the tensile stress-strain curves was observed at the temperature range of 150-250 °C. Serrated flow during the deformation at 250 °C is prominent......
中国Mg材料研发与应用丁文江1,曾小勤1(1.上海市上海交通大学材料科学与工程学院)摘 要:经过50多年的发展,中国已经成为世界上最大的Mg原材料生产国.2000年,师昌绪等5位院士联合向国家科技部提出了加速我国Mg工业发展的建议,促成了科技部启动"十五"科技攻关重大专项"镁合金应用开发及产业化",拉开了我国大规模Mg材料研究和应用的序幕.经过10年的发展.我国在先进镁合金材料,表面处理技术和镁合金加工技术方面都取得了极大的进步,正在从Mg生产大国向Mg研发应用的强国迈进.关键词:镁......
Microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion CHEN Yong-jun(陈勇军), WANG Qu-dong(王渠东), LIN Jin-bao(林金宝), ZHANG Lu-jun(张陆军), ZHAI Chun-quan(翟春泉... September 2006 Abstract: The microstructure and mechanical properties of AZ31 Mg alloy processed by high ratio extrusion (HRE) were investigated. General extrusion with extrusion ratio of 7 and high......
Comparison of microstructure and properties of AZ31 Mg alloy sheet produced through different routes LUO Jin-ru(罗晋如)1, CHEN Xing-pin(陈兴品)2, XIN Ren-long(辛仁龙)2, HUANG Guang-jie(黄光... words: AZ31 Mg alloy; texture; mechanical property; anisotropy ......
at low temperature, while grains grow up fast and grain size distribution moves to large scale and to be homogeneous at high temperature. Key words: Mg alloy; phase field model; recrystallization...长.此外,为使数值解具有稳定性,需将Laplace算子作用考虑到次近邻格点[5, 18] (10) 式中:为空间步长,j和n分别代表i的最近邻格点与次近邻格点. 1.4 参数设置 为了使模拟结果能够与真实材料进行对比,模拟时所用材料为AZ31镁合金,其主要化学成分(质量分数)为3%Al,1%Zn,余量为Mg.针对该变形镁合金在不同热处理温度下的再结......
Grain refining and property improvement of AZ31 Mg alloy by hot rolling MIAO Qing(苗 青), HU Lian-xi(胡连喜), SUN Hong-fei(孙宏飞), WANG Er-de(王尔德) School of Materials Science and Engineering...; Abstract: Hot rolling of AZ31 Mg alloy was performed by using as-cast alloy ingot as the starting material......
and sizes of cross-section of AZ31 Mg alloy thin-walled tube (mm) 基于上述背景,本文作者旨在利用有限元方法,通过单一改变分流孔轴向倾角β,模拟研究分流孔轴向倾角对AZ31镁合金薄壁管分流挤压过程的影响规律,为优化模具结构提供理论指导；综合考虑挤压力,焊合质量,管材尺寸精度等因素,对分流孔轴向倾角进行优化设计. 1 有限元模型的建... on extrusion process of AZ31 Mg alloy thin-walled tube ZHANG Bao-jun1, YANG He1, GUO Liang-gang1, SHI Lei1, ZHENG Wen-da2, GU Rui-jie2, KOU Yong-le2 (1. State Key Laboratory of Solidification......
Mg and Mg alloys. The purer the alloy, the better the corrosion resistance exhibits. The corrosion behavior of Mg alloy is improved by the addition of trace Y. Key words: Mg alloy; bio-compatibility... of corrosion reaction falls down. As a result, the corrosion rate drops and corrosion becomes slower and slower. Zn is the major hardening element in Mg-Zn-Zr alloy with the reinforcing phase MgZn......
foam method, and the porosity of Mg alloy foams is in the range of 60%-90%. They also proved that smaller cell size was beneficial to getting more stable compressive process, and the compressive... properties of Mg alloy foams [J]. Materials & Design, 2012, 34(1): 40-44. [5] SCHALLER R. Metal matrix composites, a smart choice for high damping materials [J]. Journal of Alloys and Compounds, 2003......
