Ti-6Al-4V 합금의 ECAP 가공에 따른 미세조직의 변화
- Title
- Ti-6Al-4V 합금의 ECAP 가공에 따른 미세조직의 변화
- Other Titles
- Microstructural Evolution during the Equal Channel Angular Pressing of Ti-6Al-4V Alloy
- Author
- 신동혁
- Keywords
- Equal Channel Angular Rressing; Ti-6Al-4V Alloy; Ultrafine Grain; High Angle Grain Boundary
- Issue Date
- 2002-12
- Publisher
- 한국소성가공학회
- Citation
- 소성가공, v. 11, no. 6, page. 519-528
- Abstract
- The microstructural evolution during the equal channel angular pressing of Ti-6Al-4V alloy was
investigated using the transmission electron microscopy (TEM). ECA pressing was carried out
isothermally with route C at 600℃ for two types of initial microstructure, i.e., equiaxed and
Widmanstätten microstructures. At an initial stage of ECA pressing, the equiaxed microstructure
showed more uniform flow than the Widmanstätten microstructure. However, both microstructures
were significantly refined revealing nearly equiaxed grains of 0.3㎛ in diameter with high angle
grain boundaries after 4 passes of ECA pressing. These ultrafine grains were found to be stable
with little grain growth, when annealed up to 600℃ for 1hr.
- URI
- https://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE02111243https://repository.hanyang.ac.kr/handle/20.500.11754/158187
- ISSN
- 1225-696X
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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