Corrosion Behavior of Inconel 625 Coating Produced by Laser Cladding

被引：28
|
作者：
Scendo, Mieczyslaw [1 ]
Staszewska-Samson, Katarzyna [1 ]
Danielewski, Hubert [2 ]
机构：
[1] Jan Kochanowski Univ Kielce, Inst Chem, Uniwersytecka 7, PL-25406 Kielce, Poland
[2] Kielce Univ Technol, Fac Mechatron & Mech Engn, Al Tysiaclecia PP 7, PL-25314 Kielce, Poland
来源：
COATINGS | 2021年 / 11卷 / 07期
关键词：
superalloy; laser cladding; coating; acidic chloride solution; corrosion parameters; RESISTANCE; STEEL; FATIGUE;
D O I：
10.3390/coatings11070759
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Anti-corrosion properties of Inconel 625 (In) laser cladding coatings onto the (S235JR) steel (S) were investigated. The coatings were produced with the use of wire (WIn/S) or powder (PIn/S). The mechanical properties of the Inconel 625 coatings were characterized by microhardness measurements. The PIn/S shows the highest hardness. The surface and microstructure of the specimens were observed by a scanning electron microscope (SEM). The surface analysis of the laser cladding coatings by energy-dispersive spectroscope (EDS) indicated that the structure of the WIn, and PIn coatings depend on its production technique. The microstructure of the WIn and PIn coatings have a dendritic columnar character. Corrosion test materials were carried out by using electrochemical methods. The corrosive environment was acidic chloride solution. It turned out that the PIn/S coating, which was produced by laser cladding method with the use of Inconel 625 powder, has the best anti-corrosion properties in an aggressive chloride environment.
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收藏
页数：15
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