Multi-layer laser cladding of 316L/H13+20%WC composition coatings on the surface of H13 steel

W. Tong; X. L. Shi; J. L. Song; Q. L. Deng

doi:10.1117/12.2687630

27 November 2023 Multi-layer laser cladding of 316L/H13+20%WC composition coatings on the surface of H13 steel

W. Tong, X. L. Shi, J. L. Song, Q. L. Deng

Proceedings Volume 12762, Advanced Laser Processing and Manufacturing VII; 127620K (2023) https://doi.org/10.1117/12.2687630
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Abstract

H13 steel is often used to manufacture hot working dies such as forging dies and injection molds. These dies are prone to wear, cracking and failure on the surface under the action of high temperature and pressure. Laser cladding is an effective method for surface modification and remanufacturing of the H13 steel dies. However, due to the characteristics of rapid cooling and heating in laser cladding, the temperature gradient and cooling rate in the forming process are too large, which often leads to excessive thermal stress and cracking during the process, especially in multi-layer cladding. Laser cladding of multi-layer 316L/H13+20%WC composite coatings was carried out on the surface of H13 steel. The microstructure, element diffusion behavior and wear properties of the cladding layers were studied. Through design of the cladding layer materials, good adhesion performance with the substrate, high toughness of the bottom layers and high hardness and wear resistance of the top layer has been obtained to reduce the cracking tendency and enhance the comprehensive property of the cladding layers. Finally, defect free multi-layer functional composite coatings have been obtained.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

W. Tong, X. L. Shi, J. L. Song, and Q. L. Deng "Multi-layer laser cladding of 316L/H13+20%WC composition coatings on the surface of H13 steel", Proc. SPIE 12762, Advanced Laser Processing and Manufacturing VII, 127620K (27 November 2023); https://doi.org/10.1117/12.2687630

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KEYWORDS

Cladding

Composites

Chromium

Laser microstructuring

Resistance

Chemical composition

Interfaces

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