Details

Autor(en) / Beteiligte

• Terentev, A V
• Isaeva, N V
• Blagoveshchenskiy, Yu V
• Nokhrin, A V
• Murashov, A A
• Saharov, N V

Titel

Mechanical and electrochemical properties of ultrafine hard alloys with different grain growth inhibitors

Ist Teil von

• Journal of physics. Conference series, 2019-12, Vol.1347 (1), p.12007

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2019

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• A 90WC-10Co powder mixture with TaC, VC and Cr3C2 grain growth inhibitors with average particle size about 50 nm was produced by deposition of Co. Two different sintering techniques had been used for consolidation. Microhardness and fracture toughness measurements of sintered materials had showed agreement with Hall-Petch equation. The corrosion behavior was investigated in neutral and acid solutions by electrochemical methods. The observed pseudo-passive transition had been associated with the so-called salt passivity - formation of cobalt sulfate salt layer on hard alloy surfaces.