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AZ31B镁合金电磁超声铸轧板后续温轧的组织和织构演变 李建平,肖琼,毛大恒,扶宗礼,石琛 (中南大学 高性能复杂制造国家重点实验室,湖南 长沙,410083) 摘要:分别对AZ31B镁合金普通/复合能场(电磁场+超声波)铸轧板在250 ℃下进行7个道次轧制,道次压下量为15%,对比分析了整个轧制过程中两种铸轧镁板组织及织构的演变规律.研究表明:复合能场铸轧板比普通铸轧板提前1个道次完成动态再结...道次的普通铸轧板. 关键词:AZ31B镁合金；复合能场；动态再结晶；织构 中图分类号:TG166 文献标志码:A 文章编号:1672-7207(2013)12-4811-08 Evolution......
Formability determination of AZ31B tube for IHPF process at elevated temperature LIN Yan-li1, HE Zhu-bin1, YUAN Shi-jian1, WU Jia2 1. School of Materials Science and Engineering, Harbin... Abstract: Ring hoop tension test and tube bulging test were carried out at elevated temperatures up to 480 °C to evaluate the formability of AZ31B extruded tube for internal high pressure forming (IHPF......
Trans. Nonferrous Met. Soc. China 26(2016) 2347-2354 Microstructure and properties of alloying coating on AZ31B magnesium alloy Fen-jun LIU1, Qing-sen MENG2, Zeng-sheng LI1 1. College of Energy... 2016 Abstract: Vacuum thermal diffusion technique was applied to preparing alloying coating on AZ31B magnesium alloy. The microstructure and phase composition of the coatings prepared at different......
Trans. Nonferrous Met. Soc. China 27(2017) 2598-2606 Wear behaviour of hot rolled AZ31B magnesium alloy as candidate for biodegradable implant material Faruk MERT1,2 1. Department of Manufacturing... on the sliding wear behavior of hot rolled AZ31B magnesium alloy which is a good candidate for biodegradable implant material. Dry-sliding conditions which include pin-on disc method with heat-treated......
AZ31B镁合金焊接技术研究现状及发展方向刘奋军,王憨鹰榆林学院能源工程学院摘 要:分析镁合金的焊接特点,综述了近年来AZ31B镁合金的焊接方法,包括激光焊,钎焊,扩散焊,搅拌摩擦焊,TIG焊,电子束焊等,展望了AZ31B镁合金的焊接研究方向.关键词:AZ31B镁合金;焊接技术;综述;......
文章编号:1004-0609(2010)04-0688-07 AZ31B铸轧镁合金板材的预变形温热拉深 刘志民,邢书明,鲍培玮,李 楠,姚淑卿,张密兰 (北京交通大学 机械与电子控制工程学院,北京100044) 摘 要:针对AZ31B铸轧镁合金板材温热拉深性能差的问题,提出预变形温热拉深工艺.对AZ31B铸轧镁合金板材在20~220 ℃进行预变形温热拉深实验研究.结果表明:预变形使铸轧镁合金板材的拉深性能明显改善,使AZ31B铸轧镁合金板材具有最佳拉深性能的冲头温度范围(20~95 ℃)；凹模温度选择在160~220 ℃范围内,铸轧镁合金板材具有良好的拉深性能,极限拉深比可达到2.26；随着拉深成形温度的升高,工件中动态再结晶晶粒数量逐渐增加,220 ℃拉深成形时工件中再结晶晶粒分布趋于均匀. 关键词:AZ31B合金；镁合金板材；双辊铸轧；预......
Trans. Nonferrous Met. Soc. China 27(2017) 157-162 Viscous warm pressure bulging process of AZ31B magnesium alloy with different ellipticity dies Tie-jun GAO, Qing LIU, Wen-zhuo ZHANG Faculty... (VWPB) of AZ31B magnesium alloy were conducted to analyze the influence of different ellipticity dies on the formability of AZ31B magnesium alloy. At the same time, based on the grid strain rule......
Trans. Nonferrous Met. Soc. China 24(2014) 2776-2784 Effect of welding speed on microstructural characteristics and tensile properties of GTA welded AZ31B magnesium alloy V. SUBRAVEL, G. PADMANABAN... 2013; accepted 29 December 2013 Abstract: The effect of welding speed on tensile and microstructural characteristics of pulsed current gas tungsten arc welded (PCGTAW) AZ31B magnesium alloy joints......
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文章编号:1004-0609(2009)05-0816-05 高应变速率下AZ31B镁合金的压缩变形组织 毛萍莉,刘 正,王长义,金 鑫,王 峰,郭全英,孙 晶 (沈阳工业大学 材料科学与工程学院,沈阳 110178) 摘 要:采用分离式Hopkinson杆在应变速率为496~2 120 s-1范围对挤压态AZ31B镁合金进行了高速冲击压缩实验,并采用金相显微镜对压缩后镁合金的组织演变规律进行研究.结果表明:在不同应变速率下变形时,挤压态AZ31镁合金的应力-应变曲线几乎重合,说明AZ31B镁合金的应力对应变速率不敏感；但其显微组织变化对应变速率非常敏感,当变形速率较低时,其组织几乎全部由孪晶组成；当应变速率增加时,孪晶数量减少；在应变速率相对较低时(496 s-1),镁合金变形主要以孪生方式进行；当应变速率较高时(2......
