摘要
采用冲击试验和断口形貌分析对经不同温度时效处理后的AZ80镁合金冲击性能进行了分析。结果表明,AZ80镁合金的冲击韧性随时效温度的上升呈下降趋势,当温度超过140℃时,合金冲击韧度迅速下降。网状组织是AZ80镁合金力学性能降低的主要原因。
The impact test and SEM fracture analysis were carried on for AZ80 magnesium alloy after different temperature ageing, and the effects of ageing on impact property were investigated. The results indicate that impact toughness of magnesium alloy is decreased with ageing temperature increasing. Especially, the impact toughness of the AZS0 alloy is decreased rapidly when the temperature above 140℃. The network structure appears under higher temperature ageing is the main reason that mechanical properties decrease.
出处
《金属热处理》
EI
CAS
CSCD
北大核心
2007年第10期69-70,共2页
Heat Treatment of Metals
基金
国家重大基础研究前期研究专项(2004CCA04600)
山西省青年科学基金(20051025)
关键词
镁合金
冲击韧度
时效
magnesium alloy
impact toughness
ageing
