Effects of Al-TiO2-C Refiners Prepared by Different Compacting Pressures on Refinement Performance of ZL101 Alloy
WANG Peng1, ZHANG Rui-ying1,2, HAN Xiao-wei1, LIU Tian-li1, YANG Sen1
1. School of Materials Science and Engineering, Inner Mongolia University of Technology, Hohhot 010051, China;
2. Inner Mongolia Key Laboratory of Light Metal Materials, Hohhot 010051, China
Abstract：The Al-TiO2-C grain refiners with the mass fraction of 0.3% La2O3 were synthesized by the exothermic dispersion method using Al,TiO2,C, and La2O3 powders as raw materials, The refiners were fabricated by different compacting pressures, including 80, 85, 88, 90kN and 92kN respectively. Effect of Al-TiO2-C refiners prepared by different compacting pressures on refinement performance of ZL101 alloy was studied. The effects of compacting pressures on the phase morphology and microstructure of Al-TiO2-C refiners were investigated by using XRD, SEM and EDS analysis. The refinement capability of Al-TiO2-C refiners on ZL101 alloy was evaluated by using extracting characteristic values from thermal analysis cooling curves of ZL101 alloy, which comes from MATLAB software. The results show that the optimal compacting pressure is 90kN, Al3Ti exhibiting round block obviously increases and the size is uniformly distributed in the microstructure of refiners; moreover, the number of nucleation particles TiC as well as Al2O3 is increased. Al-TiO2-C has the best refinement performance on ZL101 alloy.
王鹏, 张瑞英, 韩小伟, 刘天丽, 杨森. 不同压制压力制备的Al-TiO2-C细化剂对ZL101合金细化效果的影响[J]. 材料工程, 2018, 46(8): 84-90.
WANG Peng, ZHANG Rui-ying, HAN Xiao-wei, LIU Tian-li, YANG Sen. Effects of Al-TiO2-C Refiners Prepared by Different Compacting Pressures on Refinement Performance of ZL101 Alloy. Journal of Materials Engineering, 2018, 46(8): 84-90.
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2018, Vol. 46 
