ASME SA508cl.3核电用钢静态再结晶晶粒尺寸及其变化规律的模型研究

MODELING RESEARCH OF STATICAL RECRYSTALLIZATION GRAIN & IT'S CHANGING LAW FOR NUCLEAR POWER STEEL ASME SA 508cl 3

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。

The following up grain growth with the deformation temperature,holding time and the influence of deformation temperature,deformation value,initial grain size on static recrystallization grain size have been investigated by means of thermal simulator“ Gleeble-1500” for nuclear steel SA508c1 3 The necessary material models for numerical simulation of recrystallization have been established