On the decomposition behaviour of Al‐Zn(4.5 at.%)‐Mg(2;3 at.%) alloys during continuous cooling from the temperature range of homogeneity

M. Radomsky, O. Kabisch, H. Löffler, K. ‐H Sackewitz, G. Honyek, T. Ungár, J. Lendvai, I. Kovács

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Abstract

The decomposition processes taking place in the Al‐Zn (4.5)‐Mg(2;3) alloys were studied by means of XSAS and resistivity measurements and by TEM investigations after continuous slow cooling to certain temperatures Ti and during an isothermal ageing at Ti following the continuous cooling procedure. During the cooling between 380 °C and 320 °C mostly particles of the η‐phase are growing. The formation of particles homogeneously distributed in the matrix starts at 165 °C in the alloy with 2 at.% Mg and at 175 °C in the one with 3 at.% Mg. Below these temperatures new subcritical GP zones are formed and particles already present in the matrix are growing. The dominating process depends on Ti.

Original languageEnglish
Pages (from-to)625-631
Number of pages7
JournalCrystal Research and Technology
Volume14
Issue number5
DOIs
Publication statusPublished - 1979

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homogeneity
Cooling
Decomposition
cooling
decomposition
matrices
Temperature
temperature
Aging of materials
Transmission electron microscopy
transmission electron microscopy
electrical resistivity

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  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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On the decomposition behaviour of Al‐Zn(4.5 at.%)‐Mg(2;3 at.%) alloys during continuous cooling from the temperature range of homogeneity. / Radomsky, M.; Kabisch, O.; Löffler, H.; Sackewitz, K. ‐H; Honyek, G.; Ungár, T.; Lendvai, J.; Kovács, I.

In: Crystal Research and Technology, Vol. 14, No. 5, 1979, p. 625-631.

Research output: Contribution to journalArticle

Radomsky, M. ; Kabisch, O. ; Löffler, H. ; Sackewitz, K. ‐H ; Honyek, G. ; Ungár, T. ; Lendvai, J. ; Kovács, I. / On the decomposition behaviour of Al‐Zn(4.5 at.%)‐Mg(2;3 at.%) alloys during continuous cooling from the temperature range of homogeneity. In: Crystal Research and Technology. 1979 ; Vol. 14, No. 5. pp. 625-631.
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AU - Sackewitz, K. ‐H

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