title: Ageing behaviour in a dental low-gold alloy with high copper content.
abstract: Phase transformation behaviour in a dental low-gold alloy with high copper content during continuous heating was investigated by hardness tests, electrical resistivity measurements, X-ray diffraction, scanning and transmission electron microscopies. Two kinds of solution treatment conditions (at 873 K and 1073 K) followed by iced-brine quench, represented different ageing behaviours. Although subsequent anisothermal annealing produced same phase separation of face-centred cubic disordered and ordered (Cu3Au) phases in both specimens, the specimen quenched from 1073 K had already been hardened by a spinodal decomposition.
authors.affiliation: Department of Preventive Dentistry, Nagasaki University School of Dentistry, Nagasaki 852, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hamasaki
authors.forename: K
authors.initials: K
authors.lastname: Hisatsune
authors.forename: K
authors.initials: K
authors.lastname: Udoh
authors.forename: Y
authors.initials: Y
authors.lastname: Tanaka
authors.forename: Y
authors.initials: Y
authors.lastname: Iijima
authors.forename: O
authors.initials: O
authors.lastname: Takagi
authors.forename: S
authors.initials: S
authors.lastname: Naruse