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晶粒细化对K417G高温合金蠕变性能的影响
都贝宁; 杨金侠; 崔传勇; 孙晓峰
2014-11-11
Source Publication金属学报
Issue11Pages:1384-1392
Abstract研究了晶粒细化对K417G高温合金在760℃/645 MPa,900℃/315 MPa和950℃/235 MPa下的蠕变性能的影响.结果表明,晶粒细化对合金蠕变性能的影响与温度和施加应力有关.在760℃/645 MPa下合金的蠕变性能随晶粒细化而提高,变形以晶内变形为主;900℃/315 MPa下的蠕变性能随晶粒细化先升高后降低,变形为晶内变形和晶界滑移竞争作用;950℃/235 MPa下的蠕变性能随晶粒细化而降低,变形以晶界滑移为主.760℃/645 MPa下,位错切过g'相,基体通道中没有位错网产生;900℃/315 MPa和950℃/235 MPa下位错通过Orowan机制绕过g'相,基体通道中产生位错网,并且M23C6在晶内析出.
description.department中国科学院金属研究所
Keyword高温合金 晶粒尺寸 蠕变性能
Language中文
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73543
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
都贝宁,杨金侠,崔传勇,等. 晶粒细化对K417G高温合金蠕变性能的影响[J]. 金属学报,2014(11):1384-1392.
APA 都贝宁,杨金侠,崔传勇,&孙晓峰.(2014).晶粒细化对K417G高温合金蠕变性能的影响.金属学报(11),1384-1392.
MLA 都贝宁,et al."晶粒细化对K417G高温合金蠕变性能的影响".金属学报 .11(2014):1384-1392.
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