李成涛,宋利君,任爱,刘飞华,李岩,程学群,李晓刚

• 1:苏州热工研究院电站寿命管理研究中心
• 2:北京科技大学新材料技术研究院

摘要(Abstract)：

采用扫描电镜(SEM)、背散射电子衍射分析技术(EBSD)等方法分析不同温度固溶处理(1090℃,1100℃)的Inconel690合金微观组织,并用恒变形方法研究了该Inconel 690合金在含Pb氢氧化钠溶液中的应力腐蚀行为。结果表明,固溶处理温度1100℃的试验合金具有更好的组织均匀性,低重合点阵晶界所占比例更高。固溶处理温度1090℃的试验合金在含Pb氢氧化钠溶液中具有更强的应力腐蚀敏感性。综合分析试验结果,较低的固溶处理温度导致690合金的低重合点阵晶界所占比例低,增加了其在含Pb氢氧化钠溶液中的应力腐蚀敏感性。

关键词(KeyWords)： 690合金;热处理;SEM;应力腐蚀;铅

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(钢铁联合研究基金)(U1260201);; 国家高技术研究发展计划(863)(2012AA050901)

作者(Author): 李成涛,宋利君,任爱,刘飞华,李岩,程学群,李晓刚

DOI: 10.13289/j.issn.1009-6264.2013.10.009

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