Excellent hot-corrosion and thermal-shock resistance of metal-enamel composite coating on martensitic stainless steel enabled by interface engineering

被引：5

作者：

Chen, Ken ^{[1
]}

Xie, Jinjian ^{[1
]}

Li, Wenfang ^{[1
]}

Zhu, Wen ^{[1
]}

Li, Kang ^{[1
]}

Yi, Aihua ^{[1
]}

Chen, Minghui ^{[2
]}

Wang, Fuhui ^{[2
]}

机构：

[1] Dongguan Univ Technol, Sch Mat Sci & Engn, 1 Daxue Rd, Dongguan 523808, Peoples R China

[2] Northeastern Univ, Sch Mat Sci & Engn, Corros & Protect Div, Shenyang Natl Lab Mat Sci, Shenyang 110819, Peoples R China

来源：

CORROSION SCIENCE | 2022年 / 202卷

基金：

中国国家自然科学基金;

关键词：

Stainless steel; Hot corrosion; Glass; Oxide coatings; OXIDATION BEHAVIOR; K38G SUPERALLOY; MICROSTRUCTURE; ALLOY;

D O I：

10.1016/j.corsci.2022.110286

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Hot corrosion and thermal shock behaviors of nano-nickel enamel composite coatings on martensitic stainless steel at 650 degrees C were investigated, and compared with pure enamel coatings. Both enamel coating and composite coating can protect the steel from the corrosion of NaCl-Na2SO4 eutectic molten salt. However, the enamel coating suffers serious spallation during thermal cycles. Thermal shock resistance of enamel coating is largely improved by adding nano-nickel, as nickel particles not only hinder the rapid expansion of cracks through deflection and branching mechanism, but also act as repair capsules to build bridges for the viscous flow of enamel to heal crack.

引用

页数：14