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- Title
Amorphous Metallic Alloys: Pathways for Enhanced Wear and Corrosion Resistance.
- Authors
Aditya, Ayyagari; Felix Wu, H.; Arora, Harpreet; Mukherjee, Sundeep
- Abstract
Amorphous metallic alloys are widely used in bulk form and as coatings for their desirable corrosion and wear behavior. Nevertheless, the effects of heat treatment and thermal cycling on these surface properties are not well understood. In this study, the corrosion and wear behavior of two Zr-based bulk metallic glasses were evaluated in as-cast and thermally relaxed states. Significant improvement in wear rate, friction coefficient, and corrosion penetration rate was seen for both alloys after thermal relaxation. A fully amorphous structure was retained with thermal relaxation below the glass transition. There was an increase in surface hardness and elastic modulus for both alloys after relaxation. The improvement in surface properties was explained based on annihilation of free volume.
- Subjects
AMORPHOUS alloys; WEAR resistance; CORROSION resistance; METALLIC glasses; GLASS transitions
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2017, Vol 69, Issue 11, p2150
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-017-2384-9