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Age-hardening associated with precipitation reaction and spinodal decomposition in a commercial dental low-carat Au–Ag–Cu–Pd alloy

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Abstract

Two distinguishable hardening mechanisms, depending on the temperature, were found by isothermal ageing in a commercial dental low-carat Au–Ag–Cu–Pd alloy. Age-hardening was attributed to the precipitation of the metastable AuCu I′ and equilibrium AuCu I ordered phases and spinodal decomposition depending on the ageing temperature. It was clearly visible, by using the direct-ageing method, that the XRD peaks of the parent phases showed a shift during transformation.

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Authors and Affiliations

  1. Department of Dental Materials, College of Dentistry, Pusan National University, 1-10 Ami-dong, Seo-gu Pusan, 602-739, Korea

    H. I KIM

Authors
  1. H. I KIM
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  2. M. I JANG
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  3. B. J JEON
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KIM , H.I., JANG , M.I. & JEON , B.J. Age-hardening associated with precipitation reaction and spinodal decomposition in a commercial dental low-carat Au–Ag–Cu–Pd alloy. Journal of Materials Science: Materials in Medicine 8, 333–339 (1997). https://doi.org/10.1023/A:1018572614570

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