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K40S钴基高温合金的高温低周疲劳行为.II.疲劳断口分析
Alternative TitleLow cycle fatigue behavior of K40S cobalt-base superalloy at elevated temperature
杨富民; 孙晓峰; 管恒荣; 胡壮麒
2002
Source Publication金属学报
ISSN0412-1961
Volume38Issue:10Pages:1053-1056
Abstract研究了K40S钴基高温合金在700 ℃和900 ℃温度条件下由应变控制的高温低周疲劳行为。对疲劳断口形貌进行观察,结果表明:在高温低周疲劳加载条件下,K40S合金疲劳裂纹萌生机制为表面滑移带开裂与表面碳化物相界面开裂的综合作用;疲劳裂纹萌生扩展方式为穿晶型,瞬断区呈现枝晶断裂特征;碳化物可作为障碍,阻碍疲劳裂纹的扩展,且为主要的二次裂纹策源地;K40S合金高温低周疲劳断裂为机械疲劳为高温环境氧化共同作用的结果。
Keyword钴基高温合金 裂纹萌生 裂纹扩展 环境氧化
Indexed ByCSCD
Language中文
CSCD IDCSCD:1027410
Citation statistics
Cited Times:7[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/155299
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
杨富民,孙晓峰,管恒荣,等. K40S钴基高温合金的高温低周疲劳行为.II.疲劳断口分析[J]. 金属学报,2002,38(10):1053-1056.
APA 杨富民,孙晓峰,管恒荣,&胡壮麒.(2002).K40S钴基高温合金的高温低周疲劳行为.II.疲劳断口分析.金属学报,38(10),1053-1056.
MLA 杨富民,et al."K40S钴基高温合金的高温低周疲劳行为.II.疲劳断口分析".金属学报 38.10(2002):1053-1056.
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