重庆理工大学学报（自然科学版）2017，Vol.31Issue(2)：56-61,6.DOI:10.3969/j.issn.1674-8425(z).2017.02.010
Ce对铝锌合金组织和性能的影响
Effects of Ce Addition on Microstructures and Mechanical Properties of Aluminum-Zinc Alloys
摘要
Abstract
Effects of the single addition of Ce on microstructure and hardness of aluminum Zn-based alloys were investigated,and its refinement mechanism was discussed.Experimental results show that the microstructure of alloys significantly varied from large crystals to fine crystals by the appropriate addition of Ce.The shape of a primary α-Al phase grain is converted from coarse dendrite into fine and homogeneous equiaxed crystal.The average size of equiaxed crystal is about 25 ~45 μm.Alloy hardness increases and then decreases after the first.When the content of rare Ce is 0.2%,the hardness reaches the maximum.Ce elements are mainly distributed in the grain boundary in the form of intermetallic compounds.关键词
铝锌合金/Ce/合金硬度Key words
aluminum-zinc alloy/Ce/alloy hardness分类
矿业与冶金引用本文复制引用
张照超,黄福祥,阮海光,钟明君..Ce对铝锌合金组织和性能的影响[J].重庆理工大学学报（自然科学版）,2017,31(2):56-61,6.基金项目
重庆市社会民生科技创新专项(cstc2016shmszx80019) （cstc2016shmszx80019）
