刘建涛,张义文,陶宇,张莹,张国星,迟悦

• 1:钢铁研究总院高温材料研究所

摘要(Abstract)：

结合FGH97合金的制备工艺,采用显微组织观察等手段,对合金的显微组织进行了分析研究与讨论,结果表明,直接热等静压成形的FGH97合金的晶粒组织均匀,晶粒度为6～7级;合金中的Hf元素对减少合金中的原始颗粒边界(PPB)有着显著作用,同时,Hf元素会进入γ′相和碳化物,提高γ′相的强度和碳化物的稳定性;合金的显微组织具有弯晶特点,这对合金的塑性和韧性非常重要。

关键词(KeyWords)： FGH97合金;显微组织;原始颗粒边界(PPB);Hf元素

Abstract:

Keywords:

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

作者(Author): 刘建涛,张义文,陶宇,张莹,张国星,迟悦

DOI: 10.13289/j.issn.1009-6264.2011.03.011

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