摘要
铜合金由于延展性好、耐磨损、导热性和导电性高等特点,广泛应用于电力、机械制造、化工、汽车、电气仪表和建筑等各个行业领域。但是在新型铜合金材料研发过程中,铜合金的Gleeble热模拟试验由于电偶焊接难、加热不稳定、均温区难以确定,导致试验失败率高,数据不准确,分析难度大等问题。使用Gleeble3800系统,系统地研究Cu-Cr-Zr合金的Gleeble热模拟试验。通过多种手段解决了以上问题,试验成功率达到90%以上,大大提高了试验效率。铜合金拉伸试验结果显示,高温条件下样品整体都会发生拉伸变形,但是主要变形集中在中间6 mm的均温区域,中间6 mm的变形量大约在90%~110%左右。
Copper alloy is widely used in electric power,mechanical manufacturing,chemical industry,automobile,electrical instruments and construction industries because of its good ductility,wear resistance,thermal conductivity and high conductivity.However,there are some problems in the Gleeble thermal-mechanical simulation experiment during the research of new copper alloy materials,such as the difficulty of thermocouple welding,unstable heating and determination of isothermal zone,which leads to the high failure rate of the experiment,the inaccurate data,and the difficulty of analysis and so on.In this paper,the thermal-mechanical simulation experiment of Cu-Cr-Zr alloy has been studied systematically with Gleeble3800 system.Through a variety of means to solve the above problems,the success rate of the experiment reached more than 90%,greatly improved the efficiency of the experiment.The results of tensile test of Cu-Cr-Zr alloy show that the whole sample deforms at high temperature,but the main deformation zone is in the uniform temperature region of the middle 6 mm region.The deformation of the middle 6 mm isothermal zone is about90%-110%.
作者
李磊
蔡建华
陈军
LI Lei;CAI Jian-hua;CHEN Jun(Northwest Institute for Nonferrous Metal Research,Xi'an 710016,China)
出处
《物理测试》
CAS
2019年第3期14-18,共5页
Physics Examination and Testing
基金
陕西省国际科技合作资助项目(2018KW-057)
关键词
铜合金
GLEEBLE
热模拟
高温拉伸
室温变形
copper alloy
Gleeble
thermal-mechanical simulation
high temperature tension
room temperature deformation
