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晶界碳化物对Fe-Cr15-Ni25合金蠕变裂纹扩展行为的影响

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Indexed by:期刊论文

Date of Publication:1991-01-01

Journal:金属学报

Included Journals:CSCD、Scopus

Volume:27

Issue:4

Page Number:A298

ISSN No.:0412-1961

Key Words:铁基合金; 蠕变; 裂纹; 晶粒间界

Abstract:在两种不同晶界状态下研究了Fe-Cr15-Ni25合金的蠕变裂纹扩展行为。单相合金的空洞在晶界三叉点处形核,而对晶界上有碳化物析出的合金,空洞在晶界碳化物上形核。晶界碳化物阻碍了空洞的长大和连接,因而大大提高了蠕变裂纹扩展抗力。

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