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IMPROVEMENT OF HARDNESS AND FRACTURE TOUGHNESS OF SURFACE COMPOSITES FABRICATED BY HIGH-ENERGY ELECTRON-BEAM IRRADIATION WITH FE-ALLOY POWDERS AND VC POWDERS SCIE SCOPUS
- Title
- IMPROVEMENT OF HARDNESS AND FRACTURE TOUGHNESS OF SURFACE COMPOSITES FABRICATED BY HIGH-ENERGY ELECTRON-BEAM IRRADIATION WITH FE-ALLOY POWDERS AND VC POWDERS
- Date Issued
- 2009-04
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Surface composites were fabricated by high-energy electron beam irradiation with Fe-alloy powders and VC powders, and contained a large amount (similar to 47 vol.%) of hard Cr2B and V8C7 particles without defects. According to microfracture observation, cracks were initiated at cell regions and V8C7 particles inside cells and were connected with other microcracks in a zig-zag pattern, thereby showing twice the fracture toughness and hardness than the composite fabricated without VC powders. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- Keywords
- High-energy electron beam irradiation; Surface composite; Vanadium carbide; Fracture toughness; STEEL; MICROSTRUCTURE; RESISTANCE
- ISSN
- 1359-6462
- Article Type
- Article
- Citation
- SCRIPTA MATERIALIA, vol. 60, no. 8, page. 695 - 698, 2009-04
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Related Researcher
- 이성학LEE, SUNG HAK
- Dept of Materials Science & Enginrg