Sample preparation method for metallographic examination of nickel coating on cobalt block

DU Yanhua; WEN Feng; HE Jinming; CHI Chunxia

doi:10.11973/lhjy-wl202208004

PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING > 2022 > 58(8): 13-15,20. > DOI: 10.11973/lhjy-wl202208004

DU Yanhua, WEN Feng, HE Jinming, CHI Chunxia. Sample preparation method for metallographic examination of nickel coating on cobalt block[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2022, 58(8): 13-15,20. DOI: 10.11973/lhjy-wl202208004

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Sample preparation method for metallographic examination of nickel coating on cobalt block

CNNC Key Laboratory on New Materials Research and Application Development, China North Nuclear Fuel Element Co., Ltd., Baotou 014035, China

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Received Date: December 01, 2021

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The preparation method of the metallographic test sample of nickel coating on cobalt block was mainly studied. The effects of inlay method, inlay material and sampling method on the quality of metallographic test sample were discussed. The results show that the quality of hot inlay coating sample was good.The quality of the metallographic test sample embedded with bakelite powder with edge protection was the best. It was easy to make the coating fall off by cutting the coating sample with electric spark line cutting, and the integral mosaic method could avoid this phenomenon. The best preparation scheme for the metallographic test sample of nickel coating on cobalt block was to adopt the integral hot inlay method of common bakelite powder with edge protection.
- metallographic examination,
- nickel-plate,
- cobalt block,
- bakelite powder,
- sample preparation,
- inlay

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