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

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

Takanobu Shiraishi

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

Kunihiro Hisatsune

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

Masaji Yamane

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

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 L1_o 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.

REFERENCES

• Kanzawa, Y.; Uzuka, T.; Kondo, E.; and Shoji, M.: Study on the Ag-Pd Alloy, J Jpn Soc for Dent Apparatus and Mat 4:157-160, 1963.
• Yasuda, K.: Study on the Age-hardenability of Dental Precious Metal Alloys, J Jpn Soc for Dent Apparatus and Mat 10:156-166, 1969.
• Ohta, M.; Hisatsune, K.; and Yamane, M.: Study on the Age-hardenable Silver Alloy, J Jpn Soc for Dent Apparatus and Mat 16: 144-149,1975.
• Karnowsky, M.M.: Aging of a Pd-35 at % Ag-25 at % Cu Solid Solution Alloy, J Mat Sci 13:2339-2346, 1978.[CrossRef]
• Ohta, M.; Hisatsune, K.; and Yamane, M.: Age-hardening of Dental Ag-Pd-Cu Alloy, J Less-Common Metals 65(No. 1):11-21,1979.[CrossRef]
• Tanaka, K.; Manami, M.; Izumi, K.; and Marukawa, K.: Structure of G. P. Zone in Cu-2% Be Alloy, Acta Met 11:79-81, 1963.[CrossRef]

Journal of Dental Research, Vol. 59, No. 11, 1966-1971 (1980)
DOI: 10.1177/00220345800590110701


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This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by Ohta, M. Articles by Yamane, M. Search for Related Content PubMed PubMed Citation Articles by Ohta, M. Articles by Yamane, M. Social Bookmarking                         What's this?