Optimization of reinforcement content of powder metallurgy hardfacings in abrasive wear conditions

Proceedings of the Estonian Academy of Sciences

Andrei Surženkov¹  Marek Tarraste¹  Dmitri Goljandin¹  Taavi Simson¹  Mart Viljus¹  Riho Tarbe¹  Priit Kulu¹ 

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关键词: hardfacing;    powder metallurgy;    abrasive wear;    microstructure;    hardmetal reinforcement;   

DOI  :  10.3176/proc.2016.2.03

学科分类：化学（综合）

来源: Teaduste Akadeemia Kirjastus

【 摘 要 】

The article studies the effect of the hardmetal reinforcement content (80, 60, 40, and 20 wt%) on powder metallurgy (PM) hardfacings with the FeCrSiB matrix, produced by vacuum pressureless liquid-phase sintering. Research focus was on the microstructure, macro- and microhardness, as well as wear resistance of hardfacings under abrasive rubber wheel wear and abrasive–erosive wear tests. The results of the wear tests are compared to the wear of reference materials: steel Hardox 400, composite wear plate CDP 112 (Castolin Eutectic® Ltd.), and hardmetal VK15. A positive correlation was found between the microstructure and microhardness of the hardfacings and their wear resistance. Optimal hardmetal content in the PM hardfacings for different types of wear conditions is recommended.

【 授权许可】

Unknown