组织遗传对2.25Cr-1Mo-0.25V 钢晶粒度的影响

摘要

研究2.25Cr-1Mo-0.25V钢奥氏体晶粒随加热温度的变化规律和组织遗传对晶粒度的影响.结果表明：温度超过1000℃时，晶粒度过度长大；组织遗传是形成粗晶的原因之一.%　　This paper researches the variation rule of 2.25Cr-1Mo-0.25V steel austenite grain along heating tem-perature and the influence of structure heredity on grain size .The results show that the grain size grows up excessively when temperature is over 1000℃and the structure heredity is one of reasons to form coarse grain .