Adhesion of Cold Sprayed Coatings: Effect of Powder, Substrate, and Heat Treatment
Adhesion of Cold Sprayed Coatings: Effect of Powder, Substrate, and Heat Treatment
复制标题
冷喷涂涂层的附着力：粉末、基材和热处理的影响
DOI：
10.31399/asm.cp.itsc2007p0031
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
P. Vuoristo
中科院分区：
文献类型：
--
作者：
H. Mäkinen;J. Lagerbom;P. Vuoristo
在冷喷涂过程中，各种问题影响涂层的力学性能。粘接强度通常被认为是最关键的力学性能。本研究的目的是研究冷喷涂铜镍铬合金涂层的附着力。重点研究了粉末、基材和热处理对粘接强度的影响。测试了三种不同的铜粉和三种镍-20%铬粉。衬底材料为碳钢和铜。此外，还研究了基体预处理对冷喷涂铜涂层附着力的影响。粉末和基材对冷喷涂涂层的影响与材料有关。冷喷涂Cu涂层在Cu基体上的附着强度明显高于钢基体。热处理后，随着退火温度的升高，粘接强度也有所提高。
In cold spraying, various issues affect the mechanical properties of the coatings. Adhesion strength is usually considered to be the most crucial mechanical property. The aim of this study was to investigate the adhesion strength of cold sprayed copper and nickel chromium alloy coatings. The focus was especially in studying the influence of powders, substrates and heat treatments on adhesion strength. Three different copper and three nickel-20%chromium powders were tested. The substrate materials were carbon steel and copper. Furthermore, effect of substrate pre-treatment to the adhesion strength of the cold sprayed copper coatings was investigated. The influences of the powders and the substrates on the cold sprayed coatings were dependent on the materials. Adhesion strength of the cold sprayed Cu coatings was significantly higher on the Cu substrate than on the steel substrate. Moreover, heat treatment improved the adhesion strengths with increasing annealing temperature.