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Age-hardening by metastable phases in an experimental Au–Ag–Cu–Pd alloy
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Jae-Ho | - |
dc.contributor.author | Yi, Sang-Joon | - |
dc.contributor.author | Seol, Hyo-Joung | - |
dc.contributor.author | Kwon, Yong Hoon | - |
dc.contributor.author | Lee, Jai-Bong | - |
dc.contributor.author | Kim, Hyung-Il | - |
dc.date.accessioned | 2010-09-09T07:01:05Z | - |
dc.date.available | 2010-09-09T07:01:05Z | - |
dc.date.issued | 2006-11 | - |
dc.identifier.citation | Journal of Alloys and Compounds 425 (2006) 210–215 | en |
dc.identifier.issn | 0925-8388 | - |
dc.identifier.uri | https://hdl.handle.net/10371/69792 | - |
dc.description.abstract | The age-hardening mechanism and phase transformation during the age-hardening process were examined for a low carat gold alloy with a composition of 30 wt.% Au–30 wt.% Ag–20 wt.% Cu–20 wt.% Pd. By aging the solution-treated specimen, the fcc α0 phase was transformed into the Au-containing Ag-rich phase and the Pd-containing AuCu I phase through the metastable state. The phase transformation of the α0 phase into the metastable Ag-rich α′1 and AuCu I′ phases caused the apparent hardness increase. And the phase transformation of the Ag-rich α′1 and AuCu I′ phases into the Ag-rich α1 and AuCu I phases, caused the hardness decrease. The hardness increase in the early stage of the age-hardening process seemed to be caused by an introduction of the coherency strains at the interface between the metastable Ag-rich α′1 and AuCu I′ phases during the phase transformation of α0 into Ag-rich α′1 and AuCu I′. In the later stage of aging process, the alternative lamellar structure composed of the Au-containing Ag-rich phase and the Pd-containing AuCu I phase grew from the grain boundary consuming the Ag-rich α′1 and AuCu I′ phases in the grain interior, which caused the hardness decrease by releasing the coherency strains. | en |
dc.language.iso | en | en |
dc.publisher | Elsevier | en |
dc.subject | Dental alloys | en |
dc.subject | Scanning electron microscopy | en |
dc.subject | X-ray diffraction | en |
dc.title | Age-hardening by metastable phases in an experimental Au–Ag–Cu–Pd alloy | en |
dc.type | Article | en |
dc.contributor.AlternativeAuthor | 이재호 | - |
dc.contributor.AlternativeAuthor | 이상준 | - |
dc.contributor.AlternativeAuthor | 설효정 | - |
dc.contributor.AlternativeAuthor | 권용훈 | - |
dc.contributor.AlternativeAuthor | 이재봉 | - |
dc.contributor.AlternativeAuthor | 김형일 | - |
dc.identifier.doi | 10.1016/j.jallcom.2006.01.081 | - |
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