期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 237, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2019.117735
关键词
High performance steel; Mechanical property; 3D scanning technology; Corrosion; FEM
资金
- National Basic Research Program of China (973 Program) [2015CB057701]
- National Natural Science Foundation of China [51778068]
- key Project of Hunan Provincial Education Department [18A136]
An experimental study was conducted to compare the deterioration of mechanical properties of HPS specimens subjected to electrochemical corrosion and neutral salt spray accelerated corrosion. Twenty seven 460D steel specimens were designed and subjected to these two kinds of corrosion. The geometric features of the specimens were evaluated by using 3D scanning technology. Mechanical properties and corrosion damage were discussed after tensile tests. FEM was developed to investigate the effects of different corroded cross sections and their spacing on the degradation of mechanical properties. Experimental results show that specimens subjected to the electrochemical accelerated corrosion have more obvious non-uniformity. Shape of big pits in terms of the electrochemical accelerated corrosion can be regarded as a flat semi-ellipsoid, and part of a full semi-ellipsoid for salt spray accelerated corrosion, and cone for the small pits. Corrosion method has an effect on the ductility, strength, and failure behaviors. Compared with thickness loss, width loss has a greater impact on structural strength and stiffness. (C) 2019 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据