谭黎明,张义文,贾建,刘建涛

• 1:钢铁研究总院高温材料研究所
• 2:高温合金新材料北京市重点实验室

摘要(Abstract)：

为了提高粉末高温合金FGH97的拉伸强度,同时保持基础合金良好的塑性、高温持久性能和较好的组织稳定性,通过正交设计和热力学计算,调整了FGH97中Co、Cr、Mo、W 4种固溶强化元素的含量,结合热力学计算结果筛选出3种成分的设计合金,对合金进行显微组织观察、物理化学相分析、室温高温拉伸等力学性能检测,以及长时效热处理试验。结果表明:在FGH97基础上调整成分的设计合金具有更高的室温、高温拉伸强度,实现了很好的强化效果;设计合金塑性损失不明显,还具有更长的高温持久寿命及较好的组织稳定性。

关键词(KeyWords)： FGH97;固溶强化元素;强化设计;组织稳定性

Abstract:

Keywords:

基金项目(Foundation): 国家国际科技合作专项资助(2014DFR50330)

作者(Author): 谭黎明,张义文,贾建,刘建涛

DOI: 10.13289/j.issn.1009-6264.2016.04.002

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