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for hypoeutectic alloy is L→L+α(Al)→(SiE+α(Al))+ α(Al). Hypereutectic Al-Si alloy shows the primary crystallization of silicon precipitates, and then the eutectic reaction comes after the primary silicon... (PSPs) are precipitated only from hypereutectic Al-Si alloy melts. Many PSPs, however, are experimentally found in hypoeutectic alloys. The following phase transformation is suggested......
Effect mechanisms of micro-alloying element La on microstructure and mechanical properties of hypoeutectic Al-Si alloysQiuju Zheng1,2,Lili Zhang1,Hongxiang Jiang1,Jiuzhou Zhao1,2,Jie He1,21... of microalloying element La(La addition is below 0.1 wt.%) on the solidification of hypoeutectic Al-Si alloys.This study carried out solidification experiments with Al-6 Si alloys micro-alloyed by element......
变化更加平稳. REFERENCES [1] WU Y N, ZHANG J F, LIAO H C, LI G Y, WU Y P. Development of high performance near eutectic Al-Si-Mg alloy profile by micro alloying with Ti[J]. Journal of Alloys and Compounds... of Nonferrous Metals Society of China, 2014, 24(4): 946-953. [3] EIKEN J, APEL M, LIANG S M, SCHMID-FETZER R. Impact of P and Sr on solidification sequence and morphology of hypoeutectic Al-Si alloys: Combined......
of the modified Al-10Si alloy is ductile fracture. Key words: Al-Si alloy; modification; microstructure; mechanical properties; area fraction 1 Introduction Hypoeutectic Al-Si alloys have excellent... in the alloy, and the other is the morphology, size and distribution of eutectic Si in the alloy [3,4]. Under conventional casting conditions, the eutectic Si in hypoeutectic Al-Si alloys exists in a flaky......
Preparation of primary Al-Si alloy from bauxite tailings by carbothermal reduction process YANG Dong(杨 栋), FENG Nai-xiang(冯乃祥), WANG Yao-wu(王耀武), WU Xiao-lei(武小雷) School of Materials... and bituminite content on the preparation of primary Al-Si alloy by carbothermal reduction of bauxite tailings were investigated by XRD,XRF,infrared absorption carbon-sulfur analysis unit and SEM coupled......
E, Schaffer P L, Arnberg L. The effect of Ca and P interaction on the Al–Si eutectic in a hypoeutectic Al-Si alloy [J]. Journal of Alloys and Compounds, 2014, 586: 180-190. [2] CHEN Zhong-wei, MA Cui.... Key words: hypoeutectic Al-Si alloys; modification; yttrium oxide (Y2O3); ductility; fracture mode 1 Introduction The series of aluminum cast alloys based on the Al-Si system are the most frequently......
="ChDivSummary">Both microstructural characteristics and fracture behavior of Fe-rich phases in a high-pressure die-cast hypoeutectic Al-Si alloy were investigated. Attention was focused on the morphology...The characterization of Fe-rich phases in a high-pressure die cast hypoeutectic aluminum-silicon alloyX.Y.Jiao1,C.F.Liu1,Z.P.Guo1,2,G.D.Tong3,S.L.Ma3,Y.Bi3,Y.F.Zhang3,S.M.Xiong1,21. School......
] FERRARINI C F, BOLFARINI C, KIMINAMI C S, BOTTA W J. Microstructure and mechanical properties of spray deposited hypoeutectic Al-Si alloy [J]. Materials Science and Engineering A, 2004, 375: 577-580. [25... no significant effect on mass loss. Key words: heat treatment; forging; Al-Si alloy; Al-Pb alloy; wear 1 Introduction Aluminium alloys have been used for bearing applications for many years. Aluminum......
that of solid-liquid mixing. Especially, the microstructure of liquid pure Al mixing with liquid Al-25%Si alloy is the best. The particle size of primary silicon reaches up 14 μm and the primary silicon distributes uniformly in the matrix. Key words: hypereutectic Al-Si alloy; controlled diffusion solidification; primary silicon 目前,石油资源短缺,环境污染严重,汽车使用量却越来越大,所以,提高内燃机效率,最大程度减少燃油损耗和减少尾气排放成为人们日益关注的问题.提高内燃机的效......
亚共晶Al-Si合金细化及变质的研究现状与发展 陈延红1,严密1 (1.浙江大学材料科学与工程系,浙江 杭州 310027) 摘要:本文介绍了亚共晶Al-Si常用的细化剂和变质剂,分析和概括了现有的一些细化理论,如"包晶反应","颗粒理论","晶体增殖理论","超形核理论",及变质理论,并简要讨论了化学细化法制备半固态亚共晶Al-Si合金. 关键词:亚共晶Al-Si合金; 细化剂; 变质剂; 细化理论; 半固态; Hypoeutectic Al-Si Alloys; Grain Refiner Modifier; Refining Mechanism; Semi-Solid; [全文内容正在添加中] ......