Effect of parent phase ageing on CuZnAl shape memory alloys with Mn and Zr addition

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)291-296
Journal / PublicationMaterials Letters
Volume33
Issue number5-6
Publication statusPublished - Jan 1998

Abstract

The effect of parent phase ageing on CuZnAl and CuZnAlMnZr shape memory alloys was studied. It was found that re-ordering took place during parent phase ageing for the CuZnAl alloy. When the ageing temperature reached 200°C, bainite started to precipitate and further ageing resulted in decomposition to the equilibrium phases. The consequence was a drastic drop in shape memory capacity and the decrease of transformation temperatures by solute depletion. With the Mn and Zr addition, bainitic precipitation and decomposition were also found. However, the re-ordering phenomenon was not significant when the ageing temperature was below 200°C where there was no change in shape memory capacity. © 1998 Elsevier Science B.V.

Research Area(s)

  • CuZnAl alloy, Martensitic transformation, Parent phase ageing, Shape memory alloys

Citation Format(s)

Effect of parent phase ageing on CuZnAl shape memory alloys with Mn and Zr addition. / Chung, C. Y.; Lam, C. W H; Tan, S. S.
In: Materials Letters, Vol. 33, No. 5-6, 01.1998, p. 291-296.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review