首页> 外文会议>Japan International SAMPE Symposium >Mechanical Properties and Microstructure of Squeeze Casting Al{sub}18B{sub}4O{sub}33w/Magnesium Alloy Composites
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Mechanical Properties and Microstructure of Squeeze Casting Al{sub}18B{sub}4O{sub}33w/Magnesium Alloy Composites

机译:挤压铸造的机械性能和微观结构α18b{sub} 40 {sub} 33w /镁合金复合材料

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摘要

Al{sub}18B{sub}4O{sub}33 whisker reinforced AZ91D (Mg-9%Al-1%Zn) and ZK60 (Mg-6%Zn-0.4%Zr) magnesium alloy composites were fabricated by squeeze casting. Some composites were fabricated under the semi-solid conditions. The low reactivity between whisker and matrices during fabrication and heat-treatment processes are caused by the formation of a stable and uniform reaction layer 20-30 nm in thickness on the whisker. These composites exhibit good strength and age hardening ability. In AZ91D matrix composites, the reaction layer is single-like crystalline MgAl{sub}2O{sub}4, which grew epitaxially on the whisker. On the other hand, in ZK60 matrix composite, the reaction layer is polycrystalline complex oxide containing Zr, Zn and Mg elements.
机译:通过挤压铸造制造了Al {Sub} 18b {sub} 40 {sub} 33晶须增强AZ91d(Mg-9%Al-1%Zn)和ZK60(Mg-6%Zn-0.4%Zr)镁合金复合材料。在半固体条件下制造一些复合材料。在制造和热处理过程中晶须和基质之间的低反应性是由在晶须上形成稳定和均匀的反应层20-30nm的形成引起的。这些复合材料表现出良好的强度和年龄硬化能力。在AZ91D矩阵复合材料中,反应层是单独的晶体MGAL {SUB} 2O} 4,其在晶须上外延而生长。另一方面,在ZK60基质复合材料中,反应层是含有Zr,Zn和Mg元素的多晶络合物氧化物。

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