刘建涛,张义文,陶宇,韩寿波,贾建

• 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)：

针对涡轮盘的使用温度,研究了FGH97合金在700℃度下长时时效过程中的显微组织和力学性能变化。利用扫描电镜、物理化学相分析、热力学计算等方法研究了长时时效处理过程中析出相的演变。结果表明,合金中的一次和二γ'相组织稳定性良好,三次γ'相发生了较明显的粗化,合金中未发现明显的的TCP相析出。对合金2000 h和5000 h长时时效处理后的力学性能测试表明,长时时效后合金的综合力学性能优异。

关键词(KeyWords)： FGH97合金;700℃长时时效;γ'相;组织稳定性;力学性能

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划(2010CB631204);; 高温合金新材料北京市重点实验室开放基金

作者(Author): 刘建涛,张义文,陶宇,韩寿波,贾建

DOI: 10.13289/j.issn.1009-6264.2014.07.019

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