High temperature corrosion behavior of arc-sprayed aluminum coatings on steel

SUN Jian-bo WANG Yong DONG Li-xian

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High temperature corrosion behavior of arc-sprayed aluminum coatings on steel

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Aluminum coatings were sprayed on the substrate of steel Q235 by arc spraying. The test samples of Q235, Al coatings and Al coatings with seal coat were placed in box type electric resistance furnace at 400, 500,600, 650 ℃ when their oxidation behaviors were studied. And their oxidation kinetics curves were protracted. Microstructure, microhardness, bond strength and distribution of section elements were investigated by optical microscope(OM), Vickers microhardness instrument, electric tensile test machine and EPMA. Al coatings and Al coatings with seal coat can enhance the oxidation-resistance of substrate under 500 ℃. The latter has the best corrosion resistance. The coatings can't protect the substrate against oxidation above 600 ℃. After a long time corrosion there is enriched oxygen element at interface.

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《中国有色金属学报：英文版》 |2004年第z1期|451-454|共4页
作者
SUN Jian-bo WANG Yong DONG Li-xian;
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作者单位

College of Mechanical and Electronic Engineering;

University of Petroleum;

Dongying 257061;

China College of Mechanical and Electronic Engineering;

University of Petroleum;

Dongying 257061;

China College of Mechanical and Electronic Engineering;

University of Petroleum;

Dongying 257061;

China;

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原文格式 PDF
正文语种 chi
中图分类喷镀法;
关键词
arc; spraying; Al; coating; Al; coating; with; seal; coat; high; temperature; corrosion; oxidation; kineticscurve;

机译：电弧喷涂;铝涂层;带密封涂层的铝涂层;高温腐蚀;氧化动力学曲线;

High temperature corrosion behavior of arc-sprayed aluminum coatings on steel

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