Wear and thermal properties of Zr-based amorphous surface alloyed materials fabricated by high-energy electron beam irradiation
SCIE
SCOPUS
- Title
- Wear and thermal properties of Zr-based amorphous surface alloyed materials fabricated by high-energy electron beam irradiation
- Authors
- Lee, K; Euh, K; Lee, S; Kim, NJ
- Date Issued
- 2005-09-01
- Publisher
- ELSEVIER SCIENCE SA
- Abstract
- Zr-based amorphous surface alloyed materials were fabricated by high-energy electron beam irradiation in this study. A mixture of Zr-based amorphous powders and LiF + MgF2 flux was deposited on a pure copper substrate, and then an electron beam was directed on this powder mixture to fabricate a one-layered surface alloyed material. A two-layered surface alloyed material was also fabricated by irradiating electron beam again onto the powder mixture deposited on the one-layered surface alloyed material. The microstructural analysis results indicated that a number of coarse crystalline phase particles were formed in the one-layered surface alloyed layer, whereas a small amount of fine and hard crystalline particles were homogeneously distributed in the amorphous matrix of the two-layered surface alloyed layer. Owing to these fine and hard crystalline particles, the hardness and wear resistance of the two-layered surface alloyed layer improved over the one-layered surface alloyed layer or other kinds of surface alloyed layers. The thermal conductivity of the two-layered surface alloyed layer was much lower than that of titanium-alloy-based or stainless-steel-based surface alloyed layers. These findings suggested the possibility of applying Zr-based amorphous surface alloyed materials to high wear-resistant thermal barrier coatings or parts. (c) 2005 Elsevier B.V. All rights reserved.
- Keywords
- amorphous alloy; surface alloyed material; crystalline phase particle; high-energy electron beam irradiation; thermal barrier coating; BARRIER COATINGS; IMPROVEMENT; HARDNESS; GLASS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29654
- DOI
- 10.1016/j.jallcom.2005.03.074
- ISSN
- 0925-8388
- Article Type
- Article
- Citation
- JOURNAL OF ALLOYS AND COMPOUNDS, vol. 400, no. 1-2, page. 171 - 177, 2005-09-01
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