DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, SH | ko |
dc.contributor.author | Oh, MH | ko |
dc.contributor.author | Wee, Dang-Moon | ko |
dc.date.accessioned | 2013-03-04T16:17:23Z | - |
dc.date.available | 2013-03-04T16:17:23Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2003-10 | - |
dc.identifier.citation | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, v.34A, no.10, pp.2089 - 2095 | - |
dc.identifier.issn | 1073-5623 | - |
dc.identifier.uri | http://hdl.handle.net/10203/83224 | - |
dc.description.abstract | Nickel-rich beta-NiAl alloys, which are potential materials for high-temperature shape-memory alloys, show a thermoelastic martensitic transformation, which produces their shape memory effect. However, the transformation to Ni5Al3 phase during heating of NiAl martensite can interrupt the reversible martensitic transformation; consequently, the shape memory effect in NiAl martensite might not appear after heating. The phase transformation process in binary Ni-(34 to 37)Al martensite was investigated by differential thermal analysis (DTA) method, and we found that the condition of reversible martensitic transformation was not the beta --> Ni5Al3 transformation, but rather the M --> Ni5Al3 transformation occurring at 250 degreesC to 300 degreesC. Therefore, the transformation temperature of M --> Ni5Al3 determined the highest operating temperature for the shape memory effect. For verifying the critical temperature, the phase transformation process was investigated for eight ternary Ni-33Al-X alloys (X = Cu, Co, Fe, Mn, Cr, Ti, Si, and Nb). Only Ti, Si, and Nb additions were found to be effective in dropping the M-s temperature, and they facilitated the shape memory effect in Ni-33Al-X alloys. In particular, the addition of Si and Nb raised the transformation temperature of M --> Ni5Al3, a potentially beneficial effect for shape memory at higher temperatures. | - |
dc.language | English | - |
dc.publisher | SPRINGER | - |
dc.subject | AL-FE ALLOYS | - |
dc.subject | CRYSTAL-STRUCTURE | - |
dc.subject | PHASE | - |
dc.subject | BEHAVIOR | - |
dc.subject | NI5AL3 | - |
dc.subject | MICROSTRUCTURES | - |
dc.subject | TEMPERATURES | - |
dc.subject | DUCTILITY | - |
dc.subject | NI-36.8 | - |
dc.subject | NI3AL | - |
dc.title | Effects of ternary additions on the thermoelastic martensitic transformation of NiAl | - |
dc.type | Article | - |
dc.identifier.wosid | 000185725400006 | - |
dc.identifier.scopusid | 2-s2.0-0345356200 | - |
dc.type.rims | ART | - |
dc.citation.volume | 34A | - |
dc.citation.issue | 10 | - |
dc.citation.beginningpage | 2089 | - |
dc.citation.endingpage | 2095 | - |
dc.citation.publicationname | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | - |
dc.contributor.localauthor | Wee, Dang-Moon | - |
dc.contributor.nonIdAuthor | Kim, SH | - |
dc.contributor.nonIdAuthor | Oh, MH | - |
dc.type.journalArticle | Article; Proceedings Paper | - |
dc.subject.keywordPlus | AL-FE ALLOYS | - |
dc.subject.keywordPlus | CRYSTAL-STRUCTURE | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | BEHAVIOR | - |
dc.subject.keywordPlus | NI5AL3 | - |
dc.subject.keywordPlus | MICROSTRUCTURES | - |
dc.subject.keywordPlus | TEMPERATURES | - |
dc.subject.keywordPlus | DUCTILITY | - |
dc.subject.keywordPlus | NI-36.8 | - |
dc.subject.keywordPlus | NI3AL | - |
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