Improvement of high temperature mechanical properties of Ni-based oxide dispersion strengthened alloys by preferential formation of Y-Ti-O complex oxide
DC Field | Value | Language |
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dc.contributor.author | Park, Chun Woong | - |
dc.contributor.author | Byun, Jong Min | - |
dc.contributor.author | Choi, Won June | - |
dc.contributor.author | Lee, Seung Yeung | - |
dc.contributor.author | Kim, Young Do | - |
dc.date.accessioned | 2021-08-02T12:28:38Z | - |
dc.date.available | 2021-08-02T12:28:38Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-01 | - |
dc.identifier.issn | 0921-5093 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/15149 | - |
dc.description.abstract | Y2O3 is mainly applied as a dispersoid in Ni-based oxide dispersion strengthened (ODS) alloys. The added Y2O3 reacts with Ti and Al at a temperature above 1150 degrees C to form a complex oxide such as Y-Ti-O or Y-Al-O complex oxide. However, previous studies have shown that Y-Al-O complex oxide has relatively coarser particles than Y-Ti-O complex oxide. In this study, Ti was first added to form Y-Ti-O complex oxide, which has relatively fine particles. Subsequently, Al was added to inhibit the formation of Y-Al-O complex oxide, thus improving the high-temperature mechanical properties of ODS alloys. Ni-based ODS alloy powders with composition Ni-15Cr-xTi-1.1Y(2)O(3) (without aluminum) were mechanically alloyed using a planetary mill. Thereafter, the mechanically alloyed powders were heat treated to form a complex oxide of Y-Ti-O. A second mechanical alloying was performed by adding 4.5 wt% Al to the heat treated powders. The products obtained after the second alloying were sintered by spark plasma sintering. The phase of the sintered specimens were analyzed using X-ray diffraction, their microstructures were analyzed by transmission electron microscopy and the size distribution of oxide particles was confirmed by image analysis. Moreover, the high-temperature mechanical properties of each composition were analyzed using a hot hardness tester. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE SA | - |
dc.title | Improvement of high temperature mechanical properties of Ni-based oxide dispersion strengthened alloys by preferential formation of Y-Ti-O complex oxide | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Young Do | - |
dc.identifier.doi | 10.1016/j.msea.2018.10.004 | - |
dc.identifier.scopusid | 2-s2.0-85055742635 | - |
dc.identifier.wosid | 000453494500037 | - |
dc.identifier.bibliographicCitation | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.740, pp.363 - 367 | - |
dc.relation.isPartOf | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.title | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | - |
dc.citation.volume | 740 | - |
dc.citation.startPage | 363 | - |
dc.citation.endPage | 367 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.subject.keywordPlus | PARTICLE REFINEMENT | - |
dc.subject.keywordAuthor | ODS alloys | - |
dc.subject.keywordAuthor | Mechanical alloying | - |
dc.subject.keywordAuthor | High temperature properties | - |
dc.subject.keywordAuthor | Complex oxide | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0921509318313315?via%3Dihub | - |
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