Age-hardening associated with precipitation reaction and spinodal decomposition in a commercial dental low-carat Au-Ag-Cu-Pd alloy

Age-hardening associated with precipitation reaction and spinodal decomposition in a commercial dental low-carat Au-Ag-Cu-Pd alloy

Two distinguishable hardening mechanisms, depending on the temperature, were found by isothermal ageing in a commercial dental low-carat Au-Ag-Cu-Pd alloy. Age-hardening was attributed to the precipitation of the metastable AuCu I' and equilibrium AuCu I ordered phases and spinodal decompositio...

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Veröffentlicht in:Journal of materials science. Materials in medicine 1997-06, Vol.8 (6), p.333-339
Hauptverfasser: Kim, H I, Jang, M I, Jeon, B J
Format: Artikel
Sprache:eng
Schlagworte:
Biomedical materials
Biophysics
Chemical reactions
Decomposition
Dentistry
Materials science
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Zusammenfassung:Two distinguishable hardening mechanisms, depending on the temperature, were found by isothermal ageing in a commercial dental low-carat Au-Ag-Cu-Pd alloy. Age-hardening was attributed to the precipitation of the metastable AuCu I' and equilibrium AuCu I ordered phases and spinodal decomposition depending on the ageing temperature. It was clearly visible, by using the direct-ageing method, that the XRD peaks of the parent phases showed a shift during transformation.
ISSN:0957-4530
1573-4838
DOI:10.1023/A:1018572614570