DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Jang, Changheui | - |
dc.contributor.advisor | 장창희 | - |
dc.contributor.author | Kim, Sung Hwan | - |
dc.date.accessioned | 2018-06-20T06:20:20Z | - |
dc.date.available | 2018-06-20T06:20:20Z | - |
dc.date.issued | 2017 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=675316&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/243188 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2017.2,[v, 59 :] | - |
dc.description.abstract | Surface-modification by Al-enrichment and Ni-coating was conducted on stainless steel 316LN to improve its corrosion and carburization resistance in high temperature $supercritical-CO_2$ environment. The Al-enrichment process resulted in phase transformation of the austenitic matrix into ferritic phase, with dispersions of nickel aluminide. Pre-oxidation in He at $900^\circ C$ for 1 h was conducted for some specimens prior to $S-CO_2$ exposure resulting in the formation of an adherent Al-rich oxide under porous Fe-, Al-rich spinel oxides which were prone to spallation. Subsequent exposure to$S-CO_2$environment at $600^\circ C$ (20 MPa) for 500 h resulted in formation of porous Fe-, Al-rich spinel oxides for the non-preoxidized specimen. In both cases, lower weight gains compared to the as-received condition could be noted and no notable oxide growth occurred following the spallation of the porous spinel oxides. In terms of carburization resistance, C enrichment was limited to within the oxide. In the case of Ni-coating, carburization hardly occurred other than slightly at the coating/matrix interface due to defects in the coating layer. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.subject | 스테인리스강 | - |
dc.subject | 초임계 이산화탄소 | - |
dc.subject | 표면개질 | - |
dc.subject | 확산코팅 | - |
dc.subject | 알루미나 | - |
dc.subject | Stainless steel | - |
dc.subject | Supercritical-CO2 | - |
dc.subject | Surface-modification | - |
dc.subject | Diffusion coating | - |
dc.subject | Alumina | - |
dc.title | Corrosion and carburization behavior of surface-modified SS 316LN in high temperature $Supercritical-CO_2$ environment | - |
dc.title.alternative | 표면개질된 316LN 스테인리스강의 고온 초임계 이산화탄소 부식 및 탄화 거동에 대한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :원자력및양자공학과, | - |
dc.contributor.alternativeauthor | 김성환 | - |
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