摘要
研究了混合稀土对高铝锌基合金组织与性能的影响，结果表明：稀土的加入，使合金铸态组织细化，强度、塑性、韧性和耐磨性得以提高。在稀上加入量为０．１％时，湿砂型铸态组织中晶界与晶内均可观察到稀土相的存在，而在水冷金属型铸态组织中，却未观察到稀土相的存在，稀土元素固溶于基体中。
The effect of mixed rare earth elements on the microstructure and properties of high aluminium zinc-based alloy are studied. The results shown that the as-cast sttucture of this alloy is refined byaddition of RE, and the tensile strength,plasticity, toughness and wear-resistance are increased. ThePhase of containing RE can be observed both at the grain boundry and within the grain on the condition of green-sand casting with the addition of 0. 1% RE, but the phase of containing RE can not beoberved in the as-cast micrestructure on the condition of permanent mold with water cooling while therare earth elements were solid solubilized in the matrix.
出处
《西安理工大学学报》
CAS
1995年第1期32-37,共6页
Journal of Xi'an University of Technology
关键词
锌基合金
组织
性能
混合稀土
rare earth elements
zinc-based alloy
microstructure
properties
