Influence of Gas Temperature on Microstructure and Properties of Cold Spray 304SS Coating

被引：56

作者：

Meng, Xianming ^{[1
]}

Zhang, Junbao ^{[2
]}

Zhao, Jie ^{[1
]}

Liang, Yongli ^{[2
]}

Zhang, Yujun ^{[2
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[2] Baoshan Iron & Steel Co Ltd, Baosteel Res Inst, Shanghai 201900, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2011年 / 27卷 / 09期

关键词：

Cold spray; Gas temperature; 304 stainless steel coating; Microstructure; Property; FLIGHT PARTICLE-VELOCITY; DEPOSITION CHARACTERISTICS; CORROSION BEHAVIOR; MACROSCOPIC PROPERTIES; COPPER COATINGS; HEAT-TREATMENT; STEEL; POWDER; 316L; DEFORMATION;

D O I：

10.1016/S1005-0302(11)60147-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present study, 304 stainless steel coatings were deposited on interstitial-free steel substrates by cold gas dynamic spray technology. The effect of gas temperature on microstructure, micro-hardness, cohesive strength, and electrochemical property of the coatings were investigated and compared. The results showed that increasing gas temperature had a great contribution to enhancing the bonding strength between the deposited particles and making the microstructure more density. Therefore, the porosity of the coatings decreased from 6%+/- 0.5% to 2%+/- 0.3%, and the tensile strength of the coatings increased from 56 +/- 4 MPa up to 73 +/- 3 MPa. In addition, the corrosion resistance of the coatings was also deeply influenced by process gas temperature. The corrosion kinetics of the coatings were affected by both of the plastic deformation of deposited particles and the porosity in the coatings.

引用

页码：809 / 815

页数：7

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