本文研究了V,Ti的碳氮化物在高碳钢中的析出特征。结果表明,PD_3钢在奥氏体区热机械处理时析出相为(Ti,V)CN;增大变形量或降低变形温度使(Ti,V)CN析出颗粒的平均尺寸变小,反之变大;在920℃下(Ti,V)CN颗粒长大过程受界面反应过程所控制。
The precipitation of (Ti, V) CN in the high carbon steel PD3 during soakingat austenitic area temperatures after deformation has been observed. The average size of (Ti,V) CN grains precipitated may be reduced as the increase of strain and the decrease of soakingtemperature, and vice versa. The growth of (Ti, V) CN grains at 920℃ is found to be con-trolled by the interboundary reaction between precipitated grains and matrix.
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