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本文利用“Ｇｌｅｅｂｌｅ－１５００”热力模拟试验机，对ＳＡ５０８ｃｌ．３核电用钢进行了恒温压缩模拟，分析了变形温度、变形程度、原始晶粒直径对静态再结晶晶粒尺寸的影响，另外还研究了晶粒的长大随温度、时间的变化情况。通过非线性回归分析，得到了静态再结晶晶粒直径ｄｒｅｘ随变形温度Ｔ、原始晶粒直径ｄ０的定量关系和再结晶后的晶粒尺寸ｄ与温度Ｔ、时间ｔ的定量关系，为进一步再结晶数值模拟提供了可靠的判据。
In this paper, “Gleeble-1500” thermal simulation test machine, the SA508cl. 3 nuclear steel with constant temperature compression simulation, analysis of the deformation temperature, degree of deformation, the original grain size of the static recrystallization grain size, in addition to study the grain growth with temperature, time changes. Through the nonlinear regression analysis, the quantitative relationship between the static recrystallization grain diameter drex and the deformation temperature T, the original grain diameter d0 and the recrystallized grain size d with the temperature T and the time t were obtained. For further Crystallization numerical simulation provides a reliable criterion.