大家知道,钢的机械性能主要决定于回火时的温度与持续时间。相同的硬度既可以通过较高温度与较少的持续时间达到,也可以用较低温度,但较长的持续时间得到《等值回火规范》)*。但是,不同回火规范得到相同的硬度值以后,标准实验所确定的其它机械性能也一样吗?本研究就是说明这个问题的。 We all know that the mechanical properties of steel mainly depends on the tempering temperature and duration. The same hardness can be achieved either by higher temperature with less duration, or at lower temperature, but longer duration gives “Equivalent Temper Specification”) *. However, different tempering specifications obtained the same hardness value, the standard experiment to determine the other mechanical properties are the same? This study is to illustrate this problem.