摘要
采用金相手段研究了2.25Cr1Mo 0.25V钢在不同保温温度和不同保温时间下的奥氏体晶粒长大规律,并建立了晶粒长大模型。结果显示:该钢的粗化温度为1 100℃,当温度达到1 250℃时,晶粒不会再有明显的长大趋势。加热温度对平均晶粒尺寸的影响明显大于保温时间。
Austenite grain growth behavior of forged steel 2.25Cr1Mo0.25V is researched by metallographic examination under different holding temperatures and holding times and the grain growth pattern is established.The result shows that the coarsening temperature of steel is 1100℃ and the grain doesn＇t grow obviously when the temperature reaches 1250℃.The influence of heating temperature is more obvious than that of holding time on average grain size.
出处
《大型铸锻件》
2013年第4期23-26,共4页
Heavy Casting and Forging
