金云学,宋艳萍

• 1:江苏科技大学材料与工程学院

摘要(Abstract)：

根据磁性衬板对奥氏体钢超高硬度的研发需求,在高锰奥氏体钢中添加适量的碳化物形成元素,经热处理的后采用TEM、SEM、XRD等手段研究了固溶时效态高锰奥氏体钢中碳化物的析出行为,以期获得超高硬度奥氏体钢。结果表明:高锰奥氏体钢在固溶时效状态下,组织中均匀析出大量Cr23C6相,其数量在675℃时效时达到饱和,随后开始长大聚集;时效使材料中大量弥散析出约十几纳米的VC颗粒,弥散的VC颗粒与基体间存在共格界面,存在多种共格关系,这种具有共格界面的纳米VC颗粒对材料硬度提高作用非常明显。

关键词(KeyWords)： 高锰奥氏体钢;Thermo-Calc;碳化物;时效;沉淀析出

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 金云学,宋艳萍

DOI: 10.13289/j.issn.1009-6264.2013.12.025

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