Dependence of Bonding Mechanisms of Cold Sprayed Coatings on Strain-Rate-Induced Non-Equilibrium Phase Transformation
- Title
- Dependence of Bonding Mechanisms of Cold Sprayed Coatings on Strain-Rate-Induced Non-Equilibrium Phase Transformation
- Author
- 이창희
- Keywords
- cold spray; dynamic amorphization; high-resolution transmission electron microscopy; interface bonding; phase transition
- Issue Date
- 2011-06
- Publisher
- Springer Science + Business Media
- Citation
- Journal of Thermal Spray Technology,Vol.20, No.4 [2011],860-865
- Abstract
- Strain-rate-induced amorphization at the impact interface of Ni-Cu was observed in a cold spray process by high-resolution transmission electron microscopy. Based on finite element analysis for the evolution of impact temperature and strain, strain-rate-induced phase transformation of dynamic amorphization, dynamic recrystallization, and oriented crystallization from the prior-formed amorphous were considered the possible bonding mechanism of cold spray coatings. Besides, the disordered structure within the central strain region may result from the strain-induced melting from jetting with the subsequent fast quenching, which improves the bonding and deposition of cold sprayed coatings.
- URI
- https://link.springer.com/article/10.1007%2Fs11666-011-9634-0https://repository.hanyang.ac.kr/handle/20.500.11754/70434
- ISSN
- 1059-9630
- DOI
- 10.1007/s11666-011-9634-0
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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