Diffusion bonding of electroless Ni plated WC composite to Cu and AISI 316 stainless steel |
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Authors: | Ahmet Yönetken Mehmet Çakmakkaya Ayhan Erol Şükrü Talaş |
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Affiliation: | 1. Technical Education Faculty, A. Kocatepe University, 03200, Afyonkarahisar, Turkey 2. Faculty of Technology, A. Kocatepe University, 03200, Afyonkarahisar, Turkey
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Abstract: | In this study, a composite containing WC (Tungsten Carbide) and Ni was produced by two different processing routes. Electroless Ni coated WC powders were consolidated and sintered at 1200 °C. Diffusion bonding couples of WC(Ni)-electrolytic Cu, WC(Ni)-AISI 316 stainless steel and WC(Ni)-WC(Ni) were manufactured by using a preloaded compression system under Ar atmosphere. Diffusion bonding was carried out at varying bonding temperatures; 750 °C for (WC)Ni-Cu diffusion couple and 1200 °C for (WC)Ni-(WC)Ni and (WC)Ni-AISI 316 stainless steel diffusion couples. Standard metallographic techniques, Scanning Electron Microscopy and a shear test were employed to characterize the microstructure of bondline and mechanical properties of each diffusion couple, respectively. |
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