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This paper reports laser cladding of Co–Cr–Mo (CCM) alloy on the AISI4130 base plate in terms of dilution of deposition with base plate, cladding layer thickness, microstructure, the evolution of phases, microhardness, and abrasion resistance. Phase analysis by X-ray diffraction revealed that laser-cladded CCM alloy consists of ε-Co, γ-Co, chromium-rich (i.e., Cr23C6 and Cr7C3 carbides), and tungsten carbide (W2C) phases. It also exhibited moderate values of microhardness and higher scratch hardness number as compared to plasma arc-based CCM-cladded samples. The outcome of this study found that laser cladding will offer an economical and supportable resolution for good and uniform quality cladding of CCM alloy on metallic base plates.

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Study of Microstructure and Mechanical Characteristics of Laser-Cladded Co–Cr–Mo Alloy on AISI4130 Base Plate

  • 会议论文

  • 发表日期：

    2025年

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  • Pankaj Kumar,
  • Mayur Sudhakar Sawant,
  • Vivek Rana,
  • Pradyumn Kumar Arya

摘要

This paper reports laser cladding of Co–Cr–Mo (CCM) alloy on the AISI4130 base plate in terms of dilution of deposition with base plate, cladding layer thickness, microstructure, the evolution of phases, microhardness, and abrasion resistance. Phase analysis by X-ray diffraction revealed that laser-cladded CCM alloy consists of ε-Co, γ-Co, chromium-rich (i.e., Cr23C6 and Cr7C3 carbides), and tungsten carbide (W2C) phases. It also exhibited moderate values of microhardness and higher scratch hardness number as compared to plasma arc-based CCM-cladded samples. The outcome of this study found that laser cladding will offer an economical and supportable resolution for good and uniform quality cladding of CCM alloy on metallic base plates.