张欢,赵飞,马友红

• 1:贵州大学材料与冶金学院
• 2:贵州省材料结构与强度重点实验

摘要(Abstract)：

研究了中国低活化马氏体(CLAM)钢在1223~1313 K范围内不同加热温度和保温时间下的晶粒长大行为。采用Sellers晶粒长大模型对实验数据进行拟合,并分析和验证了模型的准确性。结果表明:在1223~1253 K保温时,晶粒表现为正常长长;在1283 K保温30 min后,晶粒开始出现异常长大现象,这与钢中的MX相高温稳定性有关;当加热温度为1313 K,晶粒长大迅速。晶粒模型的计算结果与实验结果在较低温度(1223~1253 K)的吻合度很好,在较高温度(1283~1313 K)由于MX相的影响则有较大的偏差。

关键词(KeyWords)： 中国低活化马氏体(CLAM)钢;晶粒长大模型;MX相

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51461008,51571066)

作者(Author): 张欢,赵飞,马友红

DOI: 10.13289/j.issn.1009-6264.2016.05.038

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