材料科学
应力腐蚀开裂
刮擦
开裂
冶金
合金
氯
氯化物
腐蚀
晶界
锅炉(水暖)
沉浸式(数学)
打滑(空气动力学)
复合材料
废物管理
微观结构
物理
数学
纯数学
工程类
热力学
作者
Bin Wu,Fanjiang Meng,Zhiming Zhang,Rongbo Li,Hongliang Ming,Jianqiu Wang,En–Hou Han
标识
DOI:10.1002/maco.202213215
摘要
Abstract Alloy 690TT tube samples with six different scratch depths are prepared for immersion test in high‐temperature pressurized water containing chloride ions (Cl − ) at 300°C. An immersion test with a duration of 1000 h shows that the scratched area with higher scratch depth has higher stress corrosion cracking sensitivity. In chloride‐containing solution, Cl − erodes preferentially into the scratched area through the weak sites such as slip bands and deformed grain boundaries, and this process is continuously promoted with the assistance of higher residual strain in this area.
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