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℃. Copper content has a great influence on the evolution of the eutectic. The coarse phases dissolve slowly in alloy with higher copper content. Key words: Al-Zn-Mg-Cu alloy; Al2CuMg phase; eutectic... of the 7000 series aluminium alloys[1]. In order to decrease the micro- segregation and dissolve the eutectic, homogenization is necessary for as cast alloy before subsequent processing. Some coarse......
. The Al2CuMg constituents form in the primary Mg(Zn,Al,Cu)2 phase, and grow along the eutectic microstructure. Key words: Al-Zn-Mg-Cu alloy; eutectic structure; intermetallic particles; phase... phase. The Al7Cu2Fe phase is formed during solidification, and exhibits no change during the subsequent homogenization. The lamellar eutectic structures in the as-cast alloy are shown in Fig.1......
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Abstract: During the welding of AZ91 cast alloy, the presence of eutectic b-Mg17Al12 phase results... and explained.
Key words: Mg cast alloy, partial melting, divorced and regular eutectic solidification
Trans. Nonferrous Met. Soc. China 22(2012) 1582-1587 High temperature oxidation behavior of directionally solidified NiAl-31Cr-2.9Mo-0.1Hf-0.05Ho eutectic alloy WANG Zhen-sheng1,2, XIE Yi2,3, GUO... 2012 Abstract: The isothermal oxidation behavior of NiAl-31Cr-2.9Mo-0.1Hf-0.05Ho directional eutectic alloy was investigated with the help of scanning electron microscopy and X-ray diffraction......High temperature oxidation behavior of directionally solidified NiAl-31Cr-2.9Mo-0.1Hf-0.05Ho eutectic alloy
来源： 《中国有色金属学报(英文版)2012年第7期》——王振生 谢亿 郭建亭 周兰章 胡壮麒 张光业 陈志钢
Nucleation and growth of eutectic cell in hypoeutectic Al-Si alloy SUN Yu1, PANG Shao-ping1, LIU Xue-ran1, YANG Zi-run1, SUN Guo-xiong2 1. School of Materials Engineering, Yancheng Institute... of eutectic cell in hypoeutectic Al-Si alloy was investigated using optical microscopy and scanning electron microscopy equipped with electron backscattering diffraction (EBSD). By revealing......
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]. There are primary silicon looked like polygonal, star, coarser platelet and eutectic silicon looked like needle, dendrite in normal cast hypereutectic Al-Si alloy with no modification. The mechanical properties...). 3.2 Effect of modification on eutectic silicon 3.2.1 Effect of modification on morphology of eutectic silicon The casts of A390 alloy unmodified and modified by phosphorus modifier were observed......
on the solidification process and micro-structural characterization of Nb-Si eutectic alloy was studied. The microstructures of the Nb-Si composites were investigated by optics microscope (OM), X-ray... corresponds to 25% of the liquidus temperature. Contrasting to the conventional microstructure usually found in the Nb-Si eutectic alloy, the microstructure of the undercooled sample is divided......
℃ and 495 ℃, and the ordinary burnt phenomena of the ingots between 480 ℃ and 495 ℃ does not occur because the excess low-melting point eutectic phases in the as-cast alloy dissolve into the matrix during... increases with decreasing of heating rate for homogenization treatment of the ingot. In the as-cast alloy, there is a lot of eutectic products along grain boundary and interdendrite, whose melting......
not dissolve completely. Key words: 7B04 aluminum alloy; homogenization; eutectic ... ingot of 7B04 super-high strength aluminum alloy during homogenization treatment was studied with metallographic analysis, scanning electron microscopy(SEM), energy spectroscopy and differential......
