DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Ho Jung | ko |
dc.contributor.author | Kim, Hyunmyung | ko |
dc.contributor.author | Kim, Donghoon | ko |
dc.contributor.author | Jang, Changheui | ko |
dc.date.accessioned | 2016-04-15T03:04:49Z | - |
dc.date.available | 2016-04-15T03:04:49Z | - |
dc.date.created | 2015-09-21 | - |
dc.date.created | 2015-09-21 | - |
dc.date.created | 2015-09-21 | - |
dc.date.issued | 2015-08 | - |
dc.identifier.citation | MATERIALS CHARACTERIZATION, v.106, pp.283 - 291 | - |
dc.identifier.issn | 1044-5803 | - |
dc.identifier.uri | http://hdl.handle.net/10203/203948 | - |
dc.description.abstract | The effects of long-term exposure to high temperature (800 and 900 degrees C for up to 20,000 h) on the microstructure evolution of a Ni-Cr-W superalloy (Alloy 230) were investigated. After long-term aging at 800 degrees C, extensive precipitation of the secondary Cr-rich M23C6 carbides was observed. In addition, the internal dissociation of W-rich primary eta-M6C carbides was observed, such as, W-rich M6C -> alpha-W, Cr-rich M23C6, and W-depleted Ni-base matrix. After long-term aging at 900 degrees C, precipitation of Cr- and Ni-rich phase and a-W phase was observed in some areas at the expense of the secondary Cr-rich M23C6 carbides. Meanwhile, the dissociation of the primary M6C carbides was less significant at 900 degrees C. Long-term aging at both temperatures resulted in a decrease in tensile elongation while an increase in strength was minimal after aging at 900 degrees C. The degradation of tensile property depended on the evolution of Cr-rich M23C6 carbides, Cr- and Ni-rich precipitates, and a-W phases but not on the primary M6C carbides. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE INC | - |
dc.title | Microstructure evolution of a Ni-Cr-W superalloy during long-term aging at high temperatures | - |
dc.type | Article | - |
dc.identifier.wosid | 000360417200033 | - |
dc.identifier.scopusid | 2-s2.0-84934274918 | - |
dc.type.rims | ART | - |
dc.citation.volume | 106 | - |
dc.citation.beginningpage | 283 | - |
dc.citation.endingpage | 291 | - |
dc.citation.publicationname | MATERIALS CHARACTERIZATION | - |
dc.identifier.doi | 10.1016/j.matchar.2015.06.018 | - |
dc.contributor.localauthor | Jang, Changheui | - |
dc.contributor.nonIdAuthor | Kim, Donghoon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Ni-Cr-W superalloy | - |
dc.subject.keywordAuthor | Long-term aging | - |
dc.subject.keywordAuthor | Microstructure evolution | - |
dc.subject.keywordAuthor | Carbide dissociation | - |
dc.subject.keywordAuthor | Tensile elongation | - |
dc.subject.keywordPlus | NICKEL-BASE SUPERALLOY | - |
dc.subject.keywordPlus | PRIMARY MC CARBIDE | - |
dc.subject.keywordPlus | ALLOY 617 | - |
dc.subject.keywordPlus | CREEP-BEHAVIOR | - |
dc.subject.keywordPlus | PRECIPITATION | - |
dc.subject.keywordPlus | STABILITY | - |
dc.subject.keywordPlus | ENVIRONMENTS | - |
dc.subject.keywordPlus | EXPOSURE | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | CO | - |
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