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. Key words: Al 7075 alloy; Mg AZ31 alloy; diffusion bonding; intermetallic compounds; interfacial transition zone; microstructure; mechanical properties 1 Introduction Aluminum and its alloys are widely... material protuberances and at surface contacts by mechanical pressure. After that, due to the lower strength of the Mg alloy than Al alloy, with increasing temperature, plastic deformation occurred......
, superelasticity, shape memory effect and damping capacity are greatly improved. Key words: porous NiTi alloy; microwave sintering; Mg space holder; superelasticity; damping capacity 1 Introduction Nickel... vapor can provide a reducing atmosphere to prevent oxidation of titanium [14]. Thirdly, even the partial residue of Mg does not affect the properties of titanium alloy, and is even beneficial to its......
69315-516, Iran; 2. Department of Engineering, Kermanshah Branch, Islamic Azad University, Kermanshah 6718997551, Iran Received 1 February 2015; accepted 20 July 2015 Abstract: 7075 Al alloy and AZ31B Mg...% at the welding performed for 60 min. Key words: Al alloy; Mg alloy; diffusion welding; welding temperature; welding duration 1 Introduction Diffusion welding (DFW) is a joining process wherein......
; (5) 图1 AZ31镁合金在250, 300, 350和400 ℃的自由能曲线 Fig.1 Free energy curves of AZ31 Mg alloy at 250, 300, 350 and 400 ℃: (a) By software Thermocalc... was established to simulate the realistic spatio-temporal microstructure evolution in recrystallization of Mg alloy using the phase field approach. The rules were proposed to decide the real physical......
文章编号:1004-0609(2010)10-1989-09 新型医用Mg-Nd-Zn-Zr镁合金在模拟体液中的降解行为 张 佳1,宗 阳1,袁广银1, 2,常建卫1,付鹏怀1,丁文江1, 2 (1. 上海交通大学 轻合金精密成型国家工程研究中心,上海 200240； 2. 上海交通大学 金属基复合材料国家重点实验室,上海 200240) 摘 要:采...AZ91D的好,JDBM合金在模拟体液中的腐蚀性能接近于高纯镁的.力学性能测试表明,JDBM镁合金具有优良的综合力学性能,满足生物材料对力学性能的要求. 关键词:镁合金；生物材料；模拟体液；降解行为；力学性能 中图分类号:R318.08 文献标志码:A Degradable behavior of new-type medical Mg-Nd-Zn......
, TiC粒子的分散和镁液的流动也促使Al向镁液中的扩散, 因而在较短的时间内镁中的铝量就可达到较高的数值. 图5 TiCp/Al在Mg中熔化后的显微组织(未搅拌)及能谱分析 Fig.5 Microstructures of TiCp/Al prefabricating alloy melting in magnesium alloys and EDAX analysis 图6 搅拌不同时间TiCp/Mg-Al复合材料的显微组织 Fig.6 Microstructures of TiCp/Al prefabricating alloy melting in magnesium alloys 图7 未搅拌时镁液中元素含量与熔化时间关系 Fig.7 Relation of content......
)合金的变形激活能提高38%. 关键词:塑性变形；热模拟；动态再结晶；镁合金 中图分类号:TG 174.443 文献标识码:A Hot compressive deformation simulation of Mg-6.3Zn-0.7Zr- 0.9Y-0.3Nd magnesium alloy at elevated... deformation; thermal simulation; dynamic recrystallization; magnesium alloy 镁是最轻的金......
words: ZK60 alloy; ME20 alloy; magnesium alloy melt; Mg melt; 1,1,1,2-tetrafluoroethane; alloying element; oxidation 1 Introduction Molten magnesium has an extremely high affinity for oxygen and high... resistances of the latter two alloy melts are higher than that of magnesium melt. The order of the oxidation resistances for the three materials is ME20> ZK60>Mg. Fig. 1 Curves of mass gain versus......
材显微组织和力学性能的影响. 结果表明: 添加Mg可以明显细化Al-Fe-V-Si合金的铸态组织, 改善铝铁相的形貌与分布, 还有利于提高合金的硬度与强度; 同时添加Mg和Cu时, Cu部分抵消了Mg的细化作用, 但经过热处理后, Mg2Si, Al2Cu和Al2CuMg相的形成, 使合金的硬度与强度进一步提高. 关键词: Al-Fe-V-Si合金; 镁; 铜; 组织 中图分类号: TG146.2 文献标识码: A Effects of adding Mg and Cu elements on microstructure and mechanical properties of Al-Fe-V-Si alloy ZHANG Lin-lin, XIAO Yu-de, ZHOU Juan, LI Wen-xian (School of Materials Science......
体温度达到共晶温度时,发生共晶转变.而在共晶转变过程中处于晶界的CNTs作为共晶相α-Mg的形核基底优先使共晶α-Mg长大,从而造成晶界处离异共晶形成. 图3 AZ31镁合金和CNTs/AZ31复合材料的铸态金相组织 Fig.3 As-cast metallographs of AZ31 Mg alloy and CNTs /AZ31 composites...分碳纳米管分布在晶界处的离异共晶β-Al12Mg17相和二次β-Al12Mg17相中,对晶界和晶粒之间起相互搭接和强化作用. 图4 AZ31镁合金及AZ31-1.0%CNTs复合材料的XRD谱 Fig.4 XRD patterns of AZ31 Mg alloy (a) and AZ31- 1.0%CNTs composites (b) 当碳纳米管加入量过多时......
