Development and properties of nanostructured thermal spray coatings |
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| Authors: | Jin-hong Kim Hyun-seok Yang Kyeong-ho Baik Byeung Geun Seong Chang-hee Lee Soon Young Hwang |
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| Institution: | aResearch Institute of Industrial Science and Technology (RIST), Pohang 790-600, Republic of Korea;bDivision of Materials Science and Engineering, Hanyang University, Seoul 133-791, Republic of Korea;cDepartment of Materials Science and Engineering, Chungnam National University, Daejeon 305-164, Republic of Korea |
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| Abstract: | Nanostructured thermal spray coatings have been intensively studied because of their potential in a wide variety of industrial applications. In the present paper, current development status of nanostructured thermal spray coatings is presented, mainly based on the results of the authors. In the nanostructured WC–Co wear-resistant coatings, the influence of feedstock characteristics on the coating properties was discussed to suggest the desirable morphology of feedstock for thermal spraying. For the nanostructured Cr2O3 based solid-lubricant coatings, the advanced feedstock has been developed in order to solve the inhomogeneity problem of the conventional coatings. Various properties of the nanostructured coatings were evaluated and compared with those of the conventional counterparts. These results clearly demonstrate that the significant improvement in coating performance can be achieved by utilizing proper nanostructured coatings. |
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| Keywords: | Nanostructured materials Thermal spray WC– Co coatings Solid-lubricant coatings |
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