Article ID Journal Published Year Pages File Type
5463863 Materials Letters 2017 11 Pages PDF
Abstract
The CuNiTiZr medium-entropy alloy coatings were produced on TC11 titanium alloy substrate using the electrospark - computer numerical control deposition (ES-CNCD) process. The microstructure of the deposited coatings transforms from a BCC solid solution into an amorphous phase with the increase of the deposition layer number. The transformation is attributed to the high cooling rate of ES-CNCD and the increased atomic size difference (δ) of the coatings. The hardness of the 1/3/5/7/9-layer CuNiTiZr coatings are 614.1 HV, 484.2 HV, 588.5 HV, 709.1 HV and 581.2 HV, respectively, which are far greater than the hardness of TC11 (378.6 HV).
Related Topics
Physical Sciences and Engineering Materials Science Nanotechnology
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