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Investigation of the Decomposition of the Solid Solution of a Commercial Al-Zn-Mg Alloy (7015), by Means of DTA, Hardness and Conductivity Measurements

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Thermal Analysis

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Abstract

The decomposition of the solid solution of a commercial Al-Zn-Mg alloy (7015) has been followed by means of DTA. The alloy was studied in the as-quenched and naturally aged conditions. Although the sensitivity of the apparatus precluded the study of G.P. zones formation, the precipitation of the η’and/or η phases, and their redissolution processes were identified. By varying the heating rate a value for the activation energy of the precipitation process was estimated. The DTA peaks were interpreted by measuring the changes in the conductivity and Vickers hardness during a linear heating similar to that provided by the DTA equipment.

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Author information

Authors and Affiliations

  1. Departamento de Metalurgia Física, I+D Productos Endasa, Alicante, Spain

    C. G. Cordovilla & E. Louis

Authors
  1. C. G. Cordovilla
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  2. E. Louis
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Editor information

Editors and Affiliations

  1. Mettler Instrumente AG, Greifensee/ZH, Switzerland

    H. G. Wiedemann

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© 1980 Springer Basel AG

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Cordovilla, C.G., Louis, E. (1980). Investigation of the Decomposition of the Solid Solution of a Commercial Al-Zn-Mg Alloy (7015), by Means of DTA, Hardness and Conductivity Measurements. In: Wiedemann, H.G. (eds) Thermal Analysis. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-6719-1_66

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  • DOI: https://doi.org/10.1007/978-3-0348-6719-1_66

  • Publisher Name: Birkhäuser, Basel

  • Print ISBN: 978-3-0348-6720-7

  • Online ISBN: 978-3-0348-6719-1

  • eBook Packages: Springer Book Archive

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