Synthesis of Vanadium Interface for HFCVD Diamond Deposition on Steel Surface

Author(s)

Damm, Djoille Denner ^[1] ; Contin, Andre ^[2] ; Trava-Airoldi, Vladimir Jesus ^[2] ; de Vasconcelos, Getulio ^[3] ; Barquete, Danilo Maciel ^[4] ; Corat, Evaldo J. ^[2]

Affiliation

^[1] Univ Fed Sao Paulo, Sao Paulo - Brazil

^[2] Inst Nacl Pesquisas Espaciais, Sao Paulo - Brazil

^[3] Inst Estudos Avancados, Sao Paulo - Brazil

^[4] Univ Estadual Santa Cruz, Ilheus, Bahia - Brazil

• Document type: Journal article
• Source: MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS; v. 20, n. 2, p. 248-253, 2017.
• Web of Science Citations: 3

Abstract

Laser cladding of vanadium carbide powder developed an interlayer on AISI D6 steel as a diffusional barrier and to relief thermal residual stress. Laser cladding experiments varied resolution (DPI) and scanning speed (mm/s). CVD diamond deposition on this interface went on by HFCVD technique. The coatings were characterized by X-ray diffraction analysis (XRD), scanning electron microscopy (SEM-FEG) and Raman spectroscopy. Ordered state V8C7 phase prevailed in the interlayer. The thickness of heat-affected zone (HAZ) and Laser Cladding Vanadium Coating (LCVC) were 37 mu m and 5 mu m, respectively, in the best layer produced. The diamond film showed good quality and morphology. The Raman peak at 1342,13 cm(-1) shows the residual stresses level undertaken at the film-substrate interface and the corresponding adhesion, demonstrating the suitability of the VC laser cladding process to CVD diamond films deposition. (AU)

• FAPESP's process: 15/25149-2 - Study of vanadium carbide interface developed by thermodiffusion and laser cladding for HFCVD diamond deposition.
• Grantee: Djoille Denner Damm
• Support Opportunities: Scholarships in Brazil - Doctorate