影响流变应力曲线测试的因素

Influence Factors of Measuring Stress-Strain Curves

在GLEEBLE1500热／力学模拟机上用压缩实验方法来测定金属的流变应力曲线；对实验中所涉及到的一些相关因素，如温度梯度、润滑方式、控制方式及试件尺寸等进行了讨论，找出了一定的规律．

Stress-strain curves on Gleeble-1500 machine are given. Some factors influ-encing the test results actually, such as temperature gradient, lubrication conditions,control mode and the specimen's size, are investigated. Based on the experimental data,the relationship between these factors and the measurements of stress-strain curves arediscussed.