在较高温度时，这种材料全部是奥氏体，但随着冷却就进入到铁素体和奥氏体稳定状态的区域。
At high temperatures, the material is entirely austenite, but upon cooling enters a region where the stable phases are ferrite and austenite.
结果表明，奥氏体的再结晶发生在钢的正常淬火温度以上的一个温度范围，并在该范围内存在晶粒细化效果最佳的温度区域；
The results showed that the austenite recrystallization occurs in a temperature range biger than thenormal quenching temperature and there is an optimum temperature range for the grain refining.
结果表明，细小弥散的第二相粒子能有效地阻碍焊接热影响区粗晶区的原奥氏体晶粒长大，改善该区域的韧性。
The results show that the dispersed second phase particles can effectively retard the growth of austenite grain in the CGHAZ, and improve the toughness.
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