Microstructural Change of β′ Phase and Hardness Change in As-Solutionized Dental Ag-20Pd-12Au-14.5Cu Alloy

Yong Hwan Kim; Mitsuo Niinomi; Junko Hieda; Masaaki Nakai; Hisao Fukui

doi:10.4028/www.scientific.net/KEM.508.166

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 508Microstructural Change of β′ Phase and Hardness...

Microstructural Change of β′ Phase and Hardness Change in As-Solutionized Dental Ag-20Pd-12Au-14.5Cu Alloy

Abstract:

Change in the Microstructure of the L1₀-Type Ordered β' Phase Precipitated in Ag-20Pd-12Au-14.5Cu Alloy (mass%) Subjected to Solution Treatment with Varying Solution Treatment Time Was Investigated. The Size of the β' Phase Is Found to Decrease with Increasing Solution Treatment Time and the Vickers Hardness of the Alloy after Solution Treatment Decreases. Experimental Observations Show that the Microstructural Change of the β' Phase Strongly Contributes to the Change in Vickers Hardness. In Addition, the Formation and Growth of the β' Phase Are Concluded to Be Affected by the Distribution of Elements through Solution Treatment.

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Periodical:

Key Engineering Materials (Volume 508)

Pages:

166-171

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.508.166

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Online since:

March 2012

Authors:

Yong Hwan Kim, Mitsuo Niinomi, Junko Hieda, Masaaki Nakai, Hisao Fukui

Keywords:

Dental Ag-20Pd-12Au-14.5Cu Alloy, Microstructural Change, Solution Treatment Time, Vickers Hardness, β′ Phase

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References

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