刘建涛,张义文,陶宇,张莹,迟悦

• 1:钢铁研究总院高温材料研究所

摘要(Abstract)：

采用扫描电镜、透射电镜等手段研究了预处理前后FGH96合金粉末颗粒中的碳化物演变。结果表明:粉末在快速凝固过程中会析出不同形貌的MC'型亚稳态碳化物,MC'碳化物中含有较多的弱碳化物形成元素,不同形貌的MC'型碳化物的化学组成与点阵常数具有一定的差异。在粉末预处理过程中,粉末颗粒内部形成的亚稳态MC'型碳化物逐渐转变为稳定MC型碳化物,同时可形成M23C6和M6C碳化物;转变后的MC型碳化物形态以规则块状为主,成分上以强碳化物形成元素Ti,Nb,Zr为主。

关键词(KeyWords)： FGH96合金;粉末颗粒;预处理;碳化物

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展(“973”)计划(2010CB631204)

作者(Author): 刘建涛,张义文,陶宇,张莹,迟悦

DOI: 10.13289/j.issn.1009-6264.2012.05.029

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