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Microstructures variation of spray formed Si-30%Al alloy during densification process WEI Yan-guang(魏衍广), XIONG Bai-qing(熊柏青), ZHANG Yong-an(张永安), LIU Hong-wei(刘红伟), WANG Feng(王 锋), ZHU Bao-hong... to the diffusion of atoms during densification process. Key words: Si-30%Al alloy; spray forming; electronic packaging materials; microstructures variation; densification process 1 Introduction A new......
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Microstructures and mechanical properties of high strength Mg-Zn-Mn alloy ZHANG Ding-fei(张丁非)1, 2, SHI Guo-liang(石国梁)2, DAI Qing-wei(戴庆伟)2, YUAN Wei(袁 炜)2, DUAN Hong-ling(段红玲)2 1. National...; Abstract: The microstructures and mechanical properties of a new Mg-6%Zn-1%Mn (mass fraction) wrought magnesium alloy were studied, which could be extruded smoothly at 310-330......
Shape-Controlled Synthesis and Upconversion Luminescence of Y2O3:Yb, Er Microstructures De Gejihu1,QIN Weiping1,Zhao Dan1,Zhang Jisen1 (1.Key Laboratory of Excited State Processes, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Science, Changchun 130033, China) Abstract:The Y2O3: Yb3+ , Er3 + microstructures were fabricated by a hydrothermal method without......
Effect of Lanthanum and Yttrium on Microstructures of Cu-Cr alloys Zhang Meng1,Liu Guoming1,Shuai Gewang1,Yin Jianying1,Chen Xiaofang1 (1.School of Materials Science and Engineering, Nanchang University, Nanchang, Jiangxi, 330047, China) 摘要:Microstructures of Cu-based alloys (including Cu0.8Cr0.05La, Cu0.8Cr0.1La, Cu0.8Cr0.4La, Cu0.8Cr0.05Y,Cu0.8Cr0.1Y and Cu0.8Cr0.4Y) were studied by optical......
Microstructures of Sintered Mo-Cu Alloys with Mechanically Activated Powder 张秀英1,蒋凯1,郭崇峰1 (1.河南师范大学化学与环境科学学院河南省高等学校环境科学与工程重点实验室,新乡 453002) 摘要:Mechanical activation and liquid phase sintering were used to manufacture high performance Mo-Cu alloy and develop new processes. The microstructures and properties of the alloy were investigated. The experimental results showed that: (1) the ball milled......
technology on microstructures and mechanical properties of A380 alloy LEI Jiping1, 2, YU Jianwu1, LI Chengbo3, CHEN Jianmei2, FAN Guanghui1, LI Zifu3 (1. State Key Laboratory of Advanced Design...: scandium; ultrasonic vibration; microstructures Al-Si合金具有比强度高,耐腐蚀性能好和热膨胀系低等特性,广泛应用于汽车,摩托车,航天航空等领域.同时,这类合金因含有质量分数较高的Si而具有良好的铸造性能(即流动性好),而晶粒细化和变质作用能很好地将改善铝合金的微观组织结构,提高合金的力学性能[1-2].研究表明,在铝合金中添加少量的稀土元素和高强超声振动不仅能......
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