Brittle rupture of austenitic stainless steels due to creep cavitation
Brittle rupture of austenitic stainless steels due to creep cavitation
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DOI：
10.1016/j.prostr.2016.06.111
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Junjing He;R. Sandström
中科院分区：
文献类型：
--
作者：
Junjing He;R. Sandström
基本蠕变空穴模型已被用于预测奥氏体不锈钢的脆性断裂。它包括作为蠕变空蚀模型基础的晶界滑移模型、新近发展起来的空蚀形成模型和约束空蚀增长模型。个别蠕变空化模型与实验观察进行了验证。脆性断裂，由于蠕变空洞，出现晶间故障被认为是占主导地位的高温和长蠕变暴露时间。
Basic creep cavitation models have been used to predict brittle rupture of austenitic stainless steels. It involves the grain boundary sliding models, which is the basis of the creep cavitation models, the recently developed cavity formation models and the constrained cavity growth models. The individual creep cavitation models are verified with experimental observations. Brittle rupture due to creep cavitation that appears as intergranular failure is found to be dominant at high temperatures and long creep exposure times.