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-Si cast alloys containing high level of Si (＞5%) by Al-Ti or Al-Ti-B is difficult [1, 3]. It is well-known that the grain refining effect of Al-B master alloy in pure Al and wrought Al alloys is very poor, but is excellent in Al-Si alloys with high level of Si [4]. Therefore, Al-B master alloy gradually becomes a kind of effective grain refiner for Al-Si alloy [1, 4]. Electrolytic low-titanium......
dissolves quickly when the master alloy is added into the AZ61 liquid alloy as the added titanium content into the melt is within the solubility limit. TiB2, with high melting point, is presumed to serve... Effect of Al5Ti1B master alloy on microstructures and properties of AZ61 alloys MA Xu-liang(马旭梁)1, 2, WANG Xiang(王 香)2, LI Xin-lin(李新林)2, YANG Lei(杨 磊)2 1. School of Materials Science......
Effect of Y Addition on Microstructure and Constituent Phases of Al-Ti-C Master Alloy Zhang Jinshan1,Liang Wei1,Xu Chunxiang1,Lv Zhengling1,Lu Binfeng1 (1.School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China) Abstract:Al-Ti-C master alloy was prepared by SHS (Self-propagating High temperature Synthesis)-melting technique. Effect of yttrium......
relatively high refinement efficiency, thereinto the efficiency of Al-10Sr master alloy obtained by remelting and rapid cooling is higher than that of the rolled one. Fig.3 Microstructures of AZ31.... In general, high dissolution rates can be obtained for finer Al4Sr phases in Al-Sr master alloy. In Fig.2, the Al4Sr phases mainly exhibit fine granule and fibre shapes respectively after being rolled at 300......
MICROSTRUCTURE AND PROPERTIES OF HIGH BORON BEARING STEEL S.Y.Chen1,C.S.Liu1,Q.K.Cai1,B.Yu1,Z.T.Wang1 (1.School of Materials and Metallurgy,Northeastern University,Shenyang 110006,China) Abstract:High boron bearing steel, in which boron homogeneously distributed, was successfullyproduced in the vacuum induction furnace. The microstructural observations of castand hot rolled steels showed......
Microstructure and synthesis mechanism of Al-Ti-C-Sr master alloy ZHAO Hong-liang(赵红亮), WANG Jun(王 军), SONG Yong(宋 勇), GUAN Shao-kang(关绍康) School of Materials Science and Engineering, Zhengzhou...; Abstract: Al-5Ti-0.5C-8Sr (mass fraction, %) master alloy was prepared using a melt reaction method. The microstructure and synthetic......
Effect of Y Addition on Microstructure and Constituent Phases of Al-Ti-C Master Alloy许春香,卢斌峰,吕正玲,张金山,梁伟摘 要:Al-Ti-C master alloy was prepared by SHS (Self-propagating High temperature Synthesis)-melting technique. Effect of yttrium addition level on the microstructures of the master alloy was studied by XRD, SEM and EDS. The experimental results show......
Grain refinement of AZ31 magnesium alloy by Al-Ti-C-Y master alloy LIANG Wei1,XU Chunxiang1,L2,LU Binfeng1 (1.School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China;2.U) Zhengling(School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China) Abstract:Al-Ti-C-Y master alloy was prepared by combining SHS......
Grain refinement of AZ31 magnesium alloy by new Al-Ti-C master alloys HAN Guang(韩 广), LIU Xiang-fa(刘相法), DING Hai-min(丁海民) Key Laboratory for Liquid-Solid Structural Evolution... through the reaction Ti(solute)+Al4C3(s)→TiC(s)+Al(l). With the addition of 1% Al-1Ti-1C master alloy, the average grain size of AZ31 is reduced sharply from 850 μm to 200 μm, and the grain......
