Investigation of Thermal Sprayed Stainless Steel/WC-12wt%Co Nanocomposite Coatings

Chaiyasit Banjongprasert; Piyaporn Jaimeewong; Sukanda Jiansirisomboon

doi:10.4028/www.scientific.net/MSF.695.441

Paper Titles

Studies on Corrosion Behavior of S-165 and HP Supermartensitic Stainless Steels in Cl^- Environment
p.425

Synthesis and Characterization of Flower-Sphere MoS₂
p.429

Synthesis of High-Purity Ti₃SiC₂ by Infiltration-Sintering
p.433

Synthesis of Ti(C_,N)/Al₂O₃ by Mechanically Induced Self-Propagating Reactive Synthesis
p.437

Investigation of Thermal Sprayed Stainless Steel/WC-12wt%Co Nanocomposite Coatings
p.441

Ultrasound-Enhanced Electrochemical Preparation of Atomic Oxidants
p.445

Effect of Annealing on Ag-Doped Submicron Silica Powder Prepared with Modified Stöber Method
p.449

Influencing of Ca-Based Sorbent on the Sulfur Retention
p.453

Effect of Melt Treatment on Forming and Brazing Characteristics of 4343/3003/4343 Aluminum Clad Sheet
p.457

HomeMaterials Science ForumMaterials Science Forum Vol. 695Investigation of Thermal Sprayed Stainless...

Investigation of Thermal Sprayed Stainless Steel/WC-12wt%Co Nanocomposite Coatings

Abstract:

The thermal spray coatings of stainless steel with nano-sized particles as reinforcement have been studied. Stainless steel powder mixed with 0, 2.5, 5 and 10 wt% WC-12wt%Co nano-sized powder was flame sprayed. The presence of WC-12wt%Co nano-particles in mixed powders as feedstock was confirmed. The microstructure of the coatings has been investigated using a wide range of characterization techniques: optical microscopy with image analysis, X-ray diffraction (XRD), and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS) to understand the microstructure evolution. Chemical composition and microstructure of the coatings showed that the coatings contained stainless steel, WC, Co, and oxide layers. The addition of WC-12wt%Co increased cross-sectional hardness, reduced porosity and friction coefficient. The improved wear properties demonstrate a high potential for industrial applications of stainless steel/WC-12wt%Co coatings.