同时，初始应变速率和变形温度影响奥氏体晶粒尺寸和析出相的分布。
Meanwhile the initial strain rate and strain temperature affect the austenite grain size and distribution of precipitation phase.
试验结果表明，试验钢在再加热过程中，奥氏体晶粒尺寸随加热温度的升高而增大；
The results showed that during reheating process, the austenite grain size in tested steel increased with an increase in the reheating temperature.
结果表明，在焊接热模拟条件下，原始奥氏体晶粒尺寸是影响机械性能的主要因素。
Results show that after various welding simulations, the grain size of austenite imposes the most significant effect on the tensile and impact properties;
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