Research progress on causes and control of cracks in laser clad composite coatings

doi:10.13251/j.issn.0254-6051.2020.08.045

Abstract

Abstract: Causes of cracks in laser clad composite coatings and the affecting factors were reviewed. The methods for controlling cracks were summarized from the aspects of preheating of the substrate, overall tempering and remelting of the coating after cladding, gradient structure, process parameter optimization, the composition control of cladding materials and addition and assistive technologies.

Key words: laser cladding, composite coating, cracks, thermal stress

CLC Number:

TG174.4

Zhang Leitao, Zhang Hongxing, Liu Dexin, Zhang Weiqiang, Wang Xuesong, Dai Jiaoyan, Xu Jinfu. Research progress on causes and control of cracks in laser clad composite coatings[J]. Heat Treatment of Metals, 2020, 45(8): 233-239.

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