摘要
采用施加背压的等通道转角挤压技术,分别在180、200和220℃挤压温度下,对ZK60镁合金,进行了四道次挤压。并以1.67×10-3s-1的应变速率,对所得挤压件进行了不同温度的拉伸试验。通过拉伸试验及断口形貌分析,探讨不同温度ECAP对ZK60镁合金力学性能的影响。
ZK60 Mg alloy was processed by four passes of equal channel angular pressing with back pressure at the extrusion temperatures of 180 ℃, 200 ℃ and 220 ℃. Tensile test was conducted to the specimens at different temperatures at a strain rate of 1.67×10^-13s^-1. By the analysis of the tensile test and the fracture morphology, the influence of different ECAP temperatures on the mechanical properties of ZK60 Mg alloy was discussed.
出处
《热加工工艺》
CSCD
北大核心
2012年第19期27-28,32,共3页
Hot Working Technology
基金
哈尔滨市科技创新人才专项资金资助项目(2011RFXXG006)
黑龙江省教育厅科技项目资助(12521075)
关键词
等通道挤压
ZK60镁合金
挤压温度
断口形貌
力学性能
equal channel angular pressing
ZK60 Mg alloy
extrusion temperatures
fracture morphology
mechanical properties
