Deformation Mechanisms of Pure Ti during Equal Channel Angular Pressing
- Title
- Deformation Mechanisms of Pure Ti during Equal Channel Angular Pressing
- Author
- 김종렬
- Keywords
- Ti; twinning; slip; TEM; equal channel angular pressing
- Issue Date
- 2002-09
- Publisher
- 대한금속재료학회(구 대한금속학회)
- Citation
- Metals and Materials International, v. 8, no. 6, page. 513-518
- Abstract
- The microstructural development of commercially pure titanium was investigated to elucidate the mechanisms of grain refinement and strain accommodation during equal channel angular pressing. The samples were processed at 623 K via route C, in which the sample was rotated 180degrees around its longitudinal axis between the passes. TEM micrographs of the sample undergoing the first pass revealed that the strain imposed by the pressing is accommodated mainly by {10(1) over bar 1} deformation twinning. During the second pass, the deformation mechanism was changed to dislocation slip. TEM analysis indicated that the slip system consisted of alternating twin bands containing dislocations of a slip on a prismatic plane and of a+c slip on a pyramidal plane. Microstructural evolution in commercially pure titanium subjected to equal channel angular pressing was discussed based on the preferred orientation formed during the first pass and resolved shear stress for the slip systems.
- URI
- http://kiss.kstudy.com/thesis/thesis-view.asp?key=1981483https://link.springer.com/article/10.1007%2FBF03178251https://repository.hanyang.ac.kr/handle/20.500.11754/157436
- ISSN
- 1598-9623; 2005-4149
- DOI
- 10.1007/BF03178251
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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