热处理对FGH95合金组织和性能的影响研究OA北大核心CSCDCSTPCD
Effect of heat treatment on microstructure and properties of FGH95 alloy
通过热处理工艺试验设计,研究了不同热处理条件下FGH95合金的组织和性能.与亚固溶线温度热处理后细晶试样比较,过固溶线温度热处理的试样获得了晶粒度8级的相对粗晶组织,强度仅比细晶试样的降低不超过5％,而蠕变性能显著提高,700℃/690MPa条件下,0.2％残余应变的蠕变寿命提高了3～4倍；另外,通过优化γ′相的尺寸与分布,可进一步提高合金的力学性能.
The effects of heat treatment on microstructure and properties were investigated in the FGH95 alloy by designing of experiment. Compared with the subsolvus heat treated specimen with fine grain size,' the specimen subjected to supersolvus heat treatment has a relatively coarse grain structure, ASTM 8, the yield strength is less than the specimen with fine grain size by max 5% , but creep lifetimes is significantly longer, the lifetimes of 0. 2% creep is incr…查看全部>>
罗学军;王晓峰;马国君;田高峰
北京航空材料研究院先进高温结构材料重点实验室,北京100095北京航空材料研究院先进高温结构材料重点实验室,北京100095北京航空材料研究院先进高温结构材料重点实验室,北京100095北京航空材料研究院先进高温结构材料重点实验室,北京100095
FGH95合金固溶处理显微组织蠕变
FGH95 alloy solution heat treatment microstructure creep
《粉末冶金技术》 2012 (1)
12-17,6
国家重点基础研究发展计划资助项目(2010CB631200)
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