Work

Effect of WC mass fraction on the microstructure and frictional wear properties of WC/GH3536 matrix composites fabricated by selective laser melting

Year: 2025

Type: article

Abstract: • SLM-made WC/GH3536 enhances H13 steel’s high-temp wear resistance 37% through grain refinement. • 30 % WC content yields min wear rate 3.27 mm 3 /N·m via lattice dendrites strengthening bonds and stress relief. • 30% WC maximizes wear resistance with oxide layers and refined grains. WC/GH3536 composite powders with different WC mass fractions were melted on the H13 surface by Selective Laser Melting (SLM). The defects, microstructure and component diffusion at the interface were also analyzed by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The results show that the composite with 30 % WC content has the best high-temperature wear resistance with a wear rate of 3.27 mm 3 ·N −1 ·mm −1 . The high-temperature wear resistance of the composite is improved by 37 % compared to H13.

Source: Materials Letters

DOI: 10.1016/j.matlet.2025.138555

Authors: Qingsong Niu, Jun Zhao, Bin Jia, Shuyuan Luo

Institution: Xiamen University of Technology

Language: English

Topic: Metal Alloys Wear and Properties

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $2,870

Funder: Natural Science Foundation of Fujian Province