Bond Strength of Revolution Body Thermal Spray Coating

ZHANG Jiaying, ZHAO Gang, DING Huadong, SUN Yewang, YANG Junwei

China Surface Engineering ›› 2014, Vol. 27 ›› Issue (2) : 19-23.

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China Surface Engineering ›› 2014, Vol. 27 ›› Issue (2) : 19-23. DOI: 10.3969/j.issn.1007-9289.2014.02.004

Bond Strength of Revolution Body Thermal Spray Coating

  • ZHANG Jiaying, ZHAO Gang, DING Huadong, SUN Yewang, YANG Junwei
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Abstract

The coating bond strength of repaired revolution body parts need to be measured after thermal spraying. Based on the method of measuring plane coating bond strength, this paper proposed a method to measure the bond strength of revolution body coating. The key operation steps and detailed process are described. The differences between the revolution body coating and plane coating are also analyzed. According to the method, the bond strength of FeAlCrBSiNb revolution body coating with a radial matrix of 40 mm is measured. Compared with the same coating in plane shape, the measured bond strength of FeAlCrBSiNb revolution body coating is slightly small, 48.3 MPa for revolution body and 51 MPa for plane shape, coinciding with that of theoretical analysis. Results show that when the radius of the matrix is as large as possible or the difference between the actual area and the projected area of the coating is as small as possible, this method can accurately measure the bond strength of revolution body parts coating.

Key words

revolution body coating; plane coating; bond strength

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ZHANG Jiaying, ZHAO Gang, DING Huadong, SUN Yewang, YANG Junwei. Bond Strength of Revolution Body Thermal Spray Coating[J]. China Surface Engineering, 2014, 27(2): 19-23 https://doi.org/10.3969/j.issn.1007-9289.2014.02.004
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