DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kim, In-Sup | - |
dc.contributor.advisor | 김인섭 | - |
dc.contributor.author | Lee, Geol-Woo | - |
dc.contributor.author | 이걸우 | - |
dc.date.accessioned | 2011-12-14T08:13:40Z | - |
dc.date.available | 2011-12-14T08:13:40Z | - |
dc.date.issued | 1993 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=68447&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/49279 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 원자력공학과, 1993.2, [ v, 44 p. ] | - |
dc.description.abstract | An isochroanl and isothermal annealing study was performed with use of the cold rolled RPV steel(SA 508 Cl. 3 steel). Vickers microhardness and positron annihilation technique were used to understand the behavior of recovery and recrystallization. The cold-rolled specimens have represented work hardening, of which major mechanism was thought as a role of density and distribution of generated dislocations by cold rolling. Isochronal annealing experiment indicated that at least two recovery stages were observed during the annealing of the cold-rolled specimens. The first recovery process appeared, in the lower temperature, below $250^\circ C$. It is due to annealing out of vacacies, which was indicated with a drop of S parameter to the measured value of underformed specimen. The second drop in the Doppler Line-shape parameters (Stage II) occured in the temperature range of $400^\circ C$ $\sim$ $550^\circ C$. Because there was slight hardening (6.5\% increase of Micro-hardness) in this temperature range, it can be thought that there were formation and sharpening of dislocation cell, and/or interaction of alloy elements with dislocations. Furthermore, only above $550^\circ C$, the cold-rolled (60\%) RPV steel initiated the recrystallization. The behavior of recovery and recrystallization in the cold-rolled RPV steel, is very complex, and therefore must be systematically studied. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Annealing behavior of cold-rolled reactor pressure vessel steel | - |
dc.title.alternative | 냉간압연된 원자로 압력용기강의 결합 풀림 거동 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 68447/325007 | - |
dc.description.department | 한국과학기술원 : 원자력공학과, | - |
dc.identifier.uid | 000911394 | - |
dc.contributor.localauthor | Lee, Geol-Woo | - |
dc.contributor.localauthor | 이걸우 | - |
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