title: Age-hardening associated with precipitation reaction and spinodal decomposition in a commercial dental low-carat Au-Ag-Cu-Pd alloy.
abstract: 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.
authors.affiliation: Department of Dental Materials, College of Dentistry, Pusan National University, 1-10 Ami-dong, Seo-gu, Korea.
authors.forename: H I
authors.initials: HI
authors.lastname: Kim
authors.forename: M I
authors.initials: MI
authors.lastname: Jang
authors.forename: B J
authors.initials: BJ
authors.lastname: Jeon