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, 2002, 12(S1): 241-244. [18] 李 艳, 刘奎立, 陈芳雷. AZ31镁合金铸态组织及其退火工艺研究[J]. 锻压装备与制造技术, 2006, 67(3): 67-69.LI Yan, LIU Kui-li, CHEN Fang-lei. Research for microstructure of as-cast AZ31 Mg alloy and annealing...律.利用光学显微组织定量分析经不同温度过热处理所得AZ31镁合金的二次枝晶间距等组织特征差异；开发一种采用能谱分析结果计算Mg,Al和Zn等主要元素在一个枝晶单元内各个特征区域质量分数的方法,用以测评不同过热温度下凝固组织的成分均匀性.结果表明:当过热温度从750 ℃增加到900 ℃时,成分偏析减少,铸态组织中二次枝晶间距从13 μm减小到9 μm,多点随机显微硬度的平均值从36.5 HV增大到......
来计算其体积磨损量. 表1 AZ31镁合金,纯Al粉末和1060铝板的化学成分 Table 1 Chemical composition of AZ31 alloy, pure Al powders and 1060 aluminum plate 表2 涂层喷涂工艺参数 Table 2 Spraying parameters of coatings...合金喷砂,纯Al涂层和Al-50%Al2O3复合涂层显微硬度与涂层/基体界面距离关系如图5所示. 图5 AZ31镁合金喷砂,纯Al涂层和Al-50%Al2O3复合涂层显微硬度与涂层/基体界面距离关系 Fig. 5 Microhardness of AZ31 alloy sandblasting, pure Al coating and Al-50%Al2O3......
High temperature tensile behaviors of extruded and rolled AZ31 Mg alloy QIAO Jun(乔 军), WANG Yu(王 瑜), SHI Guo-dong(史国栋) College of Materials Science and Engineering, University of Science... ductility is dominated by solute drag dislocation creep, and the major failure mechanism is cavity growth and interlinkage. Key words: AZ31 Mg alloy; solute-drag creep; tensile ductility; superplasticity......
,这些孪晶属于界面稳定性较低的压缩孪晶. 图1 AZ31镁合金板材在退火前后的金相组织 Fig.1 Optical microstructures of AZ31 alloy sheets before and after annealing: (a) As-CRed; (b) As-DSRed; (c) As-CRed/annealed; (d...TEM像 Fig.2 TEM images of as-CRed/annealed (a) and as-DSRed AZ31 (b) alloy sheets 类型不变,但织构强度明显减弱,{0002}极图的最大极密度由10降至6,且基面绕TD轴沿RD方向发生明显的偏转.退火后,两种板材的织构类型不变而强度均有所减弱,特别是异步轧制板材{0002}极图的最大极密度仅为2,这对提高镁......
properties and texture evolution during rolling process of an AZ31 Mg alloy [J]. J Alloys Compd, 2009, 472: 127-132. [2] TANG Wei-qin, ZHANG Shao-rui, FAN Xiao-hui, LI Da-yong, PENG Ying-hong. Texture... alloy AZ31 with initial textures analyzed by orientation mapping [J]. Mater Sci Forum, 2005, 495-497: 639-644. 基于弹塑性自洽模型的AZ31镁合金轧制过程的织构模拟 黄诗尧, 张少睿, 李大永, 彭颖红 上海交通大学 机械与动力工程学院,机械系统与振动国家重点实验室,上海 200240......
大的第二相,对合金铸锭进行400 ℃,15 h的均匀化退火处理. 表1 AZ31镁合金的化学成分 Table 1 Chemical composition of AZ31 magnesium alloy(mass fraction, %) 经过均匀化处理的试样在100 t单柱校正压装液压机上进行挤压,挤压模具的示意图如图1所示.挤压温度为.... Deformation characteristics at room temperature under biaxial tensile stress in textured AZ31 Mg alloy sheets[J]. Acta Materialia, 2009, 57(5): 1476-1485. [6] KUBOTA K, MABUCHI M, HIGASHI K......
fracture mechanism, accompanied by a very small amount of dimple fracture. Key words: AZ31 magnesium alloy; hot rolled; deformation; mechanical properties 镁合金被认为是汽车及轨道交通制造中最具应用前景的轻质金属结构材料,但镁合金结构的焊接加工目前还...,动态再结晶所产生的晶粒细化有利于镁合金熔焊接头室温强度的提高,进而达到显著提高强度及塑性的力学改性效果.据此,本文作者针对Mg-Al-Zn系的AZ31变形镁合金,用钨极氩弧焊获得熔焊接头,然后对熔焊接头区域进行局部热碾压力学改性试验,以期探索实现镁合金熔焊接头强度及塑性可控化的有效途径. 1 实验 实验用AZ31镁合金材料的化学成分见表1.采用化学成分完全相同的AZ31镁合金经轧制......
Effects of hot extrusion and annealing treatment on microstructures, properties and texture of AZ31 Mg alloy ZHANG Hui(张 慧), YAN Yun-qi(闫蕴琪), WENG Wen-ping(翁文凭), ZHONG Hao(钟 皓), CHEN Qi(陈 琦... on microstructures, mechanical properties and texture of AZ31 Mg alloy were investigated．The results show that the microstructures of as-cast AZ31 alloy are markedly refined after hot extruding......
properties and deformation mechanisms of a magnesium alloy, AZ31B, sheet [J]. Materials Science and Engineering A, 2008, 486(1): 545-555. 晶粒尺寸对AZ31镁合金温成形条件下中性层偏移的影响 黄光胜1,2,3,王艳霞1,2,王利飞1,2,韩廷状1,2,潘复生1,2,3 1. 重庆...Trans. Nonferrous Met. Soc. China 25(2015) 732-737 Effects of grain size on shift of neutral layer of AZ31 magnesium alloy under warm condition Guang-sheng HUANG1,2,3, Yan-xia WANG1,2, Li-fei WANG1,2......
, KAMADO S. Numerical simulation for microstructure evolution in AM50 Mg alloy during hot rolling[J]. Computational Materials Science, 2010, 47(4): 919-925. [30] 胡丽娟, 彭颖红, 唐伟琴, 李大永, 张少睿. AZ31 镁合金薄板动态再结晶对其拉伸.... 图1 AZ31镁合金压缩试样 Fig. 1 Compression specimen of AZ31 magnesium alloy 图2 AZ31镁合金的真实应力-真实应变曲线 Fig. 2 True stress-true strain curves of AZ31 magnesium alloy 1.2 流变应力本构模型......
