摘要
研究了几种热处理对挤压变形AZ61镁合金力学性能的影响,得出:经过固溶处理及固溶+时效处理可以使强度有所降低,但塑性提高较大,而单纯的时效处理则不能使强度降低;在挤压变形状态下,试验温度对冲击韧性的影响不大,固溶处理可以提高室温下的冲击韧性,但在低温下两者基本相同.而其它几种处理则使冲击韧性降低,并且这种冲击韧性的降低程度随着试验温度的降低而减小.
Influences of various heat treatments on the mechanical properties of extruded AZ61 magnesium alloy were investigated. Experimental results suggest that the strength of the alloy decreases slightly after solution treatment or solution plus aging treatment, but plasticity is increased dramatically and this increase can not be obtained only by aging treatment. Testing temperature has little influence on impact toughness of as-extruded AZ61 alloy. The impact toughness of the alloy at room temperature can be improved through solution treatment, while those experimental results at lower temperatures are almost the same before and after solution treatment. Other types of heat treatments will decrease the impact toughness, and this kind of decrease is not apparent at lower temperatures.
出处
《沈阳工业大学学报》
EI
CAS
2006年第4期365-368,共4页
Journal of Shenyang University of Technology
基金
国家科技部"十五"攻关项目(0527260)
关键词
挤压变形
AZ61镁合金
力学性能
热处理
冲击韧性
extrusion
AZ61 magnesium alloy
mechanical property
heat treatment
impact toughness
作者简介
杨林（1963-），男，辽宁省调兵山人，教授，主要从事轻合金的组织及性能等方面的研究．
