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]. Microstructure evolution of hypoeutectic Al-Si alloys during solidification is in two stages: primary dendrite Al phase formation, and the subsequent eutectic transformation. Based on the Al-Si binary diagram, the volume fraction of Al-Si eutectic in commonly used hypoeutectic Al-Si alloys, such as A356, A357, can be more than 50%. With small addition of impurity elements, the eutectic Si undergoes......
, YAO X D, DAVIDSON C J, JOHN D S. Thixotropic structure formation in hypoeutectic Al-Si alloys by controlled nucleation [J]. Materials Forum, 2004, 28: 1316-1321. [14] WANNASIN J, MARTINEZ R... Effects of vibration and grain refiner on microstructure of semisolid slurry of hypoeutectic Al-Si alloy ZHAO Jun-wen(赵君文), WU Shu-sen(吴树森), XIE Li-zhi(谢礼志), AN Ping(安 萍), MAO You-wu(毛有武) State......
in the hypoeutectic Al-Si alloy prepared by using ELTA was investigated, and compared with those of Al-5Ti, Al-5Ti-1B and Al-4B master alloys in the similar alloy prepared by using pure Al. The results indicate...: electrolytic low-titanium aluminum (ELTA); grain refining; hypoeutectic Al-Si alloy 1 Introduction Al-Si alloy is a type of very important cast aluminum alloys. Due to their good cast performance and high......
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Grain refining mechanism of Al-3B master alloy on hypoeutectic Al-Si alloys LIU Yuan1, 2, DING Chao2, LI Yan-xiang1, 2 1. Key Laboratory for Advanced Materials Processing Technology of Ministry...: Al-3B master alloy is a kind of efficient grain refiner for hypoeutectic Al-Si alloys. Experiments were carried out to evaluate the effect of undissolved AlB2 particles in Al-3B master alloy......
Trans. Nonferrous Met. Soc. China 30(2020) 2879-2890 Effect of Sr modification on microstructure and thermal conductivity of hypoeutectic Al-Si alloys Jun-qi GAN, Yu-jian HUANG , Cheng WEN, Jun DU....%) was added into the hypoeutectic Al-Si (3-12 wt.% Si) alloys to modify their microstructure and improve thermal conductivity. The results showed that the thermal conductivity of hypoeutectic Al-Si......
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] ......
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...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......
Trans. Nonferrous Met. Soc. China 22(2012) 1264-1269 Growth mechanism of primary silicon in cast hypoeutectic Al-Si alloys WANG Shou-ren1, MA Ru1, WANG Ying-zi2, WANG Yong3, YANG Li-ying 1 1. School... in eutectic or hypoeutectic Al-Si alloys. In addition, solute redistribution caused by chemical driving force and large pile-ups or micro-segregation of the solute play an important role......
: Butterworths Ltd, 1983: 370-801. [14] DAHLE A K, NOGITA K,MCDONALD S D, ZINDEL J W, HOGAN L M. Eutectic nucleation and growth in hypoeutectic Al-Si alloys at different strontium levels [J]. Metallurgical... wear and erosion-corrosion encountered during operation appear to be responsible for the poor performance of the component. Al-Si alloys have widely been used as wear resistant materials in different......
