Strengthening behaviors of low-precious Ag-Pd-Au-Zn alloys for dental applications

Mitsuo Niinomi, Masaaki Nakai, Junko Hieda, Ken-Cho, Yonghwan Kim, Hisao Fukui

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Ag-Pd-Au-Zn alloys are frequently strengthened by an aging treatment after an initial solution treatment. However, Ag-Pd-Au-Zn alloys can be significantly strengthened by solution treatment alone. This phenomenon is unique, as the strength of metallic materials is generally decreased by solution treatment because of the precipitates dissolving into the surrounding matrix. Among the Ag-Pd-Au-Zn alloys, Ag-20Pd-12Au-14.5Cu alloy (in mass %) is the standard compositional alloy used for practical applications. The main source of the solution-treated Ag-20Pd-12Au-14.5Cu alloy strengthening was expected to be a β′ phase formation during the cooling process from the solution treatment's high temperature; this is clarified by changing the solution heat treatment and aging treatment conditions of using as-received wrought Ag-20Pd-12Au-14.5Cu alloy and liquid rapid solidified Ag-20Pd-12Au-14.5Cu alloy.

Original languageEnglish
Title of host publicationBiomaterials Science
Subtitle of host publicationProcessing, Properties and Applications V
EditorsSusmita Bose, Amit Bandyopadhyay, Roger Narayan
PublisherAmerican Ceramic Society
Pages63-71
Number of pages9
ISBN (Electronic)9781119190028
Publication statusPublished - 2015 Jan 1
EventNext Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2014 Conference, MS and T 2014 - Pittsburgh, United States
Duration: 2014 Oct 122014 Oct 16

Publication series

NameCeramic Transactions
Volume254
ISSN (Print)1042-1122

Other

OtherNext Generation Biomaterials and Surface Properties of Biomaterials Symposia - Materials Science and Technology 2014 Conference, MS and T 2014
CountryUnited States
CityPittsburgh
Period14/10/1214/10/16

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

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