摘要
利用Gleeble-1500D热模拟试验机对Cu-Cr-Zr-Y合金进行高温等温压缩试验,变形温度和应变速率分别为650~850℃和0.001~10 s-1,对合金高温热压缩过程中的变形行为进行研究。结果表明:其流变应力随应变速率的提高而增大,随变形温度的升高而减小。并根据动态材料模型绘制和分析了该合金的热加工图,得出了热变形过程的最佳工艺参数为:温度为800~850℃,应变速率范围为0.001~0.1 s-1。
The high temperature deformation behaviors of Cu-Cr-Zr-Y alloy were investigated by compressive test using a Gleeble-1500 D thermal-mechanical simulating tester at elevated temperature ranging from 650 ℃ to 850 ℃ and at the strain rate from 0. 001 s-1to10 s-1. The results show that the flow stress increases with the increase of strain rate and decreases with the increase of deforming temperature. Based on dynamic materials model,the processing maps are established and analyzed,and the optimal hot deformation processing parameters of temperature 800-850 ℃ and strain rate 0. 001-0. 1 s-1are also obtained by the processing maps.
出处
《材料热处理学报》
EI
CAS
CSCD
北大核心
2015年第6期228-232,共5页
Transactions of Materials and Heat Treatment
基金
国家自然科学基金(51101052)
河南省高等学校青年骨干教师资助计划(2012GGJS-073)
河南省教育厅自然科学研究计划(2011B430013)
河南科技大学青年科学基金(2011QN48)
