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Ma, H., Wang, P., He, J., Luo, K., Du, B., Wu, N., et al. (2024) Differences in Hardness and Microstructure of Laser Cladding M2 Coatings. Materials Chemistry and Physics, 313, Article ID: 128767. https://doi.org/10.1016/j.matchemphys.2023.128767

has been cited by the following article:

• TITLE: A Comparative Study on Microstructure and Wear Resistance of M2 Alloy Steel Cladding Layers by High-Speed Laser Cladding and Conventional Laser Cladding

  AUTHORS: Pengfei Sun, Dengzhi Wang

  KEYWORDS: High Speed Laser Cladding, M2 Alloy, Microstructural Evolution, Wear Performance

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.13 No.9, September 24, 2025

  ABSTRACT: Based on the experimental results, this study demonstrates that increasing the laser scanning speed effectively refines the microstructure of the fabricated samples, resulting in finer needle-like martensite and reduced carbide size. Although the average surface hardness decreases due to incomplete austenite-to-martensite transformation at higher speeds, the wear resistance improves significantly. The sample produced with a higher laser scanning speed exhibits the lowest wear volume, which contradicts the conventional hardness-dependent wear behavior. This enhancement is attributed to the refined microstructure, which strengthens resistance to micro-cutting and provides better load support during sliding wear. The findings suggest that microstructural refinement plays a more critical role than hardness in enhancing wear performance under the tested conditions.