齐亮,张迎晖,汪志刚,贺玲慧

• 1:江西理工大学材料科学与工程学院

摘要(Abstract)：

通过观察萃取复型试样和薄膜试样,分析X100管线钢中析出相;结合析出相析出动力学模型,讨论在先析出TiN相界面形核和位错线形核动力学特征。结果表明:X100管线钢析出相多呈复合析出,先析出的TiN相周边附着许多富Nb的细小析出相,更加细小的椭圆形析出相富含Nb,方形析出相富含Ti。Nb(C,N)析出动力学计算结果表明:Nb(C,N)在TiN相界面形核较位错线形核具有较大的临界形核半径、更高的最大相对形核率温度和析出鼻点温度,形变储能对鼻点温度的影响近似线性关系。

关键词(KeyWords)： 管线钢;碳氮化物;析出;鼻点温度;动力学

Abstract:

Keywords:

基金项目(Foundation): 国家“十一五”科技支撑计划(2006BAE03A06);; 江西理工大学科研基金(NSFJ2014-K03)

作者(Author): 齐亮,张迎晖,汪志刚,贺玲慧

DOI: 10.13289/j.issn.1009-6264.2014.11.014

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