摘要
电站高温部件长期在高温高压下运行,多轴蠕变是其发生失效的主要原因之一,受到国内外学者的广泛关注。基于微观结构变化、孔洞长大理论和连续损伤力学方法3个方面,对多轴应力状态下蠕变的理论研究和实验研究的进展及应用进行归纳,并对多轴蠕变的发展进行展望。
Structural components in power plants often operate at elevated temperatures and pressures for long time periods,multiaxial creep is one of the major factors leading to failure,which has been paid much attention to by scholars at home and abroad.Based on the microstructural changes,cavity growth mechanism and continuous damage mechanism,the development and application of creep under multiaxial stress state are summarized.The outlook on multiaxial creep is made at last.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2014年第11期84-88,共5页
Materials Reports
基金
国家自然科学基金和神华集团有限公司联合资助项目(51134016)
关键词
多轴应力
蠕变
损伤
模型
multiaxial stress
creep
damage
model
