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Effects of surface thermal spray coating on mechanical properties of STD11 steel

Author

Listed:
  • JunHyouk Ar
  • Jei-Pil Wang

Abstract

This study aimed to increase wear resistance by forming a thermal spray coating layer on the steel surface using a high-hardness coating material. After quenching at 1030°C and low-temperature tempering at 170°C on the existing STD11 steel, HVOF thermal spray of WC-12Co powder, surface fusing treatment using 60W-40Ni self-fluxing alloy powder, and arc wire thermal spray using Fe-29%Cr wire were performed to form a high-hardness coating layer on the surface of the STD11 steel. The surface of the manufactured sample was measured five times using a Vickers hardness (HV) tester, and the HVOF thermal spray was measured to be HRC70.6, the fusing thermal spray HRC64.2, and the arc wire thermal spray HRC62.9. The cross-section of each thermal spray coating layer was analyzed by SEM-EDX (Scanning Electron Microscopy-Energy Dispersive X-ray Analysis).

Suggested Citation

  • JunHyouk Ar & Jei-Pil Wang, 2025. "Effects of surface thermal spray coating on mechanical properties of STD11 steel," International Journal of Innovative Research and Scientific Studies, Innovative Research Publishing, vol. 8(4), pages 944-952.
    • Handle: RePEc:aac:ijirss:v:8:y:2025:i:4:p:944-952:id:7978
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