Effect of vacuum heat treatment on microstructure and microhardness of cold sprayed Cu-4Cr-2Nb alloy coating

查看全文 作　　者：[1]李文亚;[1]郭学平;[1]L.DEMBINSKI;[1]廖汉林;[1]C.CODDET

机构地区：[1]LERMPS,Université de Technologie de Belfort-Montbéliard,Site de Sévenans,90010 Belfort Cedex,France

出　　处：《中国有色金属学会会刊:英文版》索引2006年第16卷第B01期,共6页

摘　　要：The effect of vacuum heat treatment on the microstructure and microhardness of cold-sprayed Cu-4%Cr-2%Nb alloy coating was investigated. The heat treatment was conducted under the temperatures from 250 ℃ to 950 ℃ with a step of 100 ℃ for 2 h. It was found that a dense thick Cu-4Cr-2Nb coating could be formed by cold spraying. After heat treatment, a Cr2Nb phase was uniformly distributed in the matrix, which was transferred from the gas-atomized feedstock. A little grain growth of Cr2Nb phase was observed accompanying with the healing-up of the incomplete interfaces between the deposited particles at the elevated temperatures. The coating microhardness increases a little with increasing the temperature to 350 ℃, and then decreases with further increasing temperature up to 950 ℃. This fact can be attributed to the microstructure evolution during the heat treatment. 关键词：Cu-4Cr-2Nb合金涂层冷喷涂真空热处理显微结构显微硬度

相关文献

参考文献（12）
引证文献（2）
耦合文献（0）

参考文献(12)

引证文献(2)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Effect of vacuum heat treatment on microstructure and microhardness of cold sprayed Cu-4Cr-2Nb alloy coating

参考文献(12)

引证文献(2)

用户提示