Microstructure and Wear Properties of Fe-Based Alloy Hardfacing Layers

Lin Zong; Zheng Jun Liu

doi:10.4028/www.scientific.net/AMR.291-294.201

Paper Titles

Influence of CeO₂ Addition on Microstructure of Vacuum-Melting WC-Ni Base Alloy Coating
p.184

Microstructure and Properties of Electrospark Deposition Coating on Die Steel
p.188

Synthesis Research of Corrosion Inhibitor Similar to Polyepoxysuccinic Acid for Carbon Steel in Sea Water
p.192

The Frictional Properties and Mechanism of Nano-Diamond/Ni Composite Coatings by Brush-Plating
p.197

Microstructure and Wear Properties of Fe-Based Alloy Hardfacing Layers
p.201

Progress of the Study on the Material and Technology of Heat Insulating Coating
p.205

Effect of Additives on Photo-Aging Performance of Polyurethane Coating
p.211

The Corrosion Behavior of Ni-P/SiC Composite Coating
p.215

Reducing Surface Defects of Cr_XO_Y Film in Mid-Frequency Dual-Magnetron Sputtering
p.219

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 291-294Microstructure and Wear Properties of Fe-Based...

Microstructure and Wear Properties of Fe-Based Alloy Hardfacing Layers

Abstract:

The in-situ M₇C₃–TiC carbides reinforced Fe-based hardfacing coating had been produced by prepared high-carbon ferrochromium, ferrotitanium and graphite power on 20g steel through GTAW. The microstructure and hard phases morphology were investigated by means of OP, SEM and XRD. The results showed that the microstructure of hardfacing coating consists of lamellar martensite, TiC particles and M7C₃ complex carbides. The TiC particles with flower-like shape and M7C₃ complex carbides with hexagonal shape are observed in the coating. The hardfacing coating reinforced by M₇C₃ –TiC carbides revealed higher wear resistance than that of the substrate due to the presence of a high volume fraction of hard and wear-resistance primary M7C₃ carbide uniformly distributed in the fine and strong [M+M₇C₃+TiC] eutectics matrix.