Age-hardening of Dental Ag-Pd-Cu-Au Alloys

Author:

Ohta Michio1,Shiraishi Takanobu1,Hisatsune Kunihiro1,Yamane Masaji1

Affiliation:

1. Department of Dental Engineering, School of Dentistry, Kyushu University, Higashi-ku Fukuoka 812, Japan

Abstract

Age-hardening mechanisms of dental Ag-Pd-Cu-Au alloys were investigated by means of electron microscopic observations. Hardening was due to the precipitation of the L1o type CuPd-ordered platelet in the grain interior and to the discontinuous precipitation at the grain boundary. The characteristics of age-hardening curves were determined by rates of continuous and discontinuous precipitation.

Publisher

SAGE Publications

Subject

General Dentistry

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