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. Key words: aluminium matrix composites; in situ; A356 alloy; TiB2; tensile properties 1 Introduction Problems are known to occur during ex situ processes with dispersoid distribution and settling... homogeneously into the aluminium matrix of the composite via the in-melt reaction in the system of A356 alloy, K2TiF6 and KBF4 compounds at 850 ℃. 2) The strength and modulus of the composites are improved......
Trans. Nonferrous Met. Soc. China 20(2010) s906-s910 Rheological behavior, microstructure and hardness of A356 aluminum alloy in semisolid state using backward extrusion process S... increases with the decrease of temperature and wall thickness. Key words: aluminum alloy A356; backward extrusion; semisolid forming; rheology 1 Introduction About 40 years ago, SPENCER et al[1] noticed......
on the low-cyclic fatigue(LCF) life of A356 alloys[10]. In this paper, two kinds of A356 alloys with different titanium contents are produced with pure aluminium and low-titanium aluminium alloys. The LCF... by in-situ titanium alloying Al-0.28%Ti alloys which were produced by electrolysis, named electrolytic low-titanium A356 alloy (EA356). Another was produced by pure aluminum and Al-5Ti master alloys......
of angular oscillation on semi-solid microstructure of A356 aluminum alloy GUO Hong-min1, YANG Xiang-jie2, LUO Xue-quan1, CHENG Shang-xu1, WANG Ming2 (1. School of Materials Science and Engineering...-solid slurry for rheoforming was proposed. The semi-solid slurry preparation of A356 aluminum alloy was carried out, applying this method of AO. The results show that the limited angular oscillation can......
; 文献标识码:A Fractal characteristics of morphology of primary phase in semi-solid A356 Al alloy LIU Zheng1, 2, YU Feng-bo2 (1. Faculty of Mechanical and Electronic... 341000, China) Abstract: Semi-solid A356 alloy slurry was prepared by low superheat pouring technology, and the fractal characteristics of morphology of primary phase in the alloy was researched......
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, holding time, addition sequence of master alloys, one-way rotation time, power frequency, pouring temperature, on the microstructure of semi-solid A356 alloy slurry and the preparation efficiency were... that by this technology, semi-solid A356 alloy slurry with α(Al) shape factor of about 0.85 and particle size of 70-80 μm (in air-cooling state) could be prepared in 20-25 s. Key words: Al-5Ti-B alloy......
高密度脉冲电流对A356铝合金低温熔体凝固组织的影响 王俊1,何树先1,周尧和1 (1.上海交通大学材料科学与工程学院,上海,200030) 摘要:研究了高密度脉冲电流对A356铝合金低温熔体凝固组织的影响.实验中对680和630℃的低温熔体施加脉冲电流处理,对比试验和凝固曲线测试结果表明.低温熔体中施加脉冲电流有利于增大凝固过冷度.提高冷却速率.缩短凝固时间.细化凝固组织.同时.经脉冲电流处理后.随熔体的保温时间延长.凝固组织逐渐粗化.分析认为.低温熔体结构比凝固过程本身更能影响最终凝固组织. 关键词:A356铝合金; 低温熔体; 凝固组织; 高密度脉冲电流; [全文内容正在添加中] ......
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