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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... of vibration and grain refiner on the microstructure of semisolid slurry of hypoeutectic Al-Si alloy were studied. The impact of vibration on the convection of liquid was conducted by using a system......
Effect of La on Microstructure and Grain-Refining Performance of Al- Ti- C Grain Refiner Zhang Jinshan1,Liang Wei1,Xu Chunxiang1,Liang Liping1,Lu Binfeng1 (1.School of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China) Abstract:Al-Ti-C grain refiner was prepared by SHS (self-propagating high-temperature synthesis )-melting technique.The effect of La......
and Engineering, Zhengzhou University, Zhengzhou 450002, China;2. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China)Abstract:An Al-3Ti-0.2C-1RE grain refiner was prepared... (XRD). The results show that the Al-3Ti-0.2C-1RE grain refiner is composed of α-Al, TiAl3, TiC and Ti2Al20Ce phases. Compared with Al-3Ti-0.2C refiner, the morphology of TiAl3 phase is changed......
Optimization of processing parameters for preparation of Al-3Ti-1B grain refiner LI Bao(李 豹)1, WANG Hong-wei(王宏伟)1, ZHAO Rui-feng(赵瑞峰)2, WEI Zun-jie(魏尊杰)1 1. School of Materials Science... can form on the TiB2 particles in place of the Al3Ti layer preventing or decreasing the probability of nucleation of aluminum grains on the particles[15]. And the Ti/B mass ratios of the grain refiner......
Microstructure of Al-Ti-B-Er refiner and its grain refining performance马腾飞,陈子勇,聂作仁,黄晖School of Materials Science and Engineering,Beijing University of Technology摘 要:refiner,formation of TiAlEr compounds,Er modified the mor-phology of TiAl3 phase,and dispersed the TiB2 and TiAl3.An excellent grain refining performance......
Microstructure of Al-Ti-B-Er refiner and its grain refining performance马腾飞,陈子勇,聂作仁,黄晖School of Materials Science and Engineering,Beijing University of Technology摘 要:refiner,formation of TiAlEr compounds,Er modified the mor-phology of TiAl3 phase,and dispersed the TiB2 and TiAl3.An excellent grain refining performance......
min. This optimized process can reduce the gas content in the solid alloy to 2×10-3 mL/g or lower. Due to the addition of grain refiner, the cast microstructure of 5083 alloy is refined. The Al-5Ti-1B wire shows the best refining effect among all the refiners. The refining effect is improved with the increase of grain refiner addition amount. And the refinement effects become stable when Ti content......
of Sciences,Shenyang 110016,China摘 要:A novel grain refiner composed of nickel,tungsten and yttria was prepared by the powder metallurgy way. The microstructure... grains could be refined by addition of the refiners apparently even at high pouring temperature. The average grain size of the refiner free alloy was 4 mm,and 0.4 mm for the refined alloy. The fine-grain......
Cooling Rate Sensitivity of RE-Containing Grain Refiner and Its Impact on the Microstructure and Mechanical Properties of A356 AlloyHua-Rui Zhang1,2,Zhen-Bang Liu1,2,Zi-Zhuo Li1,2,Hu Zhang1,21... pressure die casting technology. Their impact mechanisms on the microstructure and mechanical properties of the A356 alloy were discussed. The results demonstrated that the Al Ti B–RE refiner possessed......
Microstructural evolution and intermetallic formation in Al-8wt% Si-0.8wt% Fe alloy due to grain refiner and modifier additionsAmir Hassani1,Khalil Ranjbar2,Sattar Sami11. Faculty of Materials... of Al-8wt% Si-0.8wt% Fe was cast in a metallic die, and its microstructural changes due to Ti-B refiner and Sr modifier additions were studied. Apart from usual refinement and modification......