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Structural Changes during Post‐Ageing of an Al‐Zn (15 at.%) Alloy between 125 °C and 215 °C
Author(s) -
Löffler H.,
Kroggel R.,
Kabisch O.
Publication year - 1979
Publication title -
kristall und technik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0023-4753
DOI - 10.1002/crat.19790140807
Subject(s) - reversion , alloy , ageing , materials science , happening , metallurgy , chemistry , history , medicine , biochemistry , art history , gene , phenotype , performance art
The structural changes going on in an AlZn (15 at.%) alloy postaged between 125 °C and 215 °C after pre‐ageing between 20 °C and 90 °C (till start r s = (20… 55) Å are obtained) were followed by means of XSAS‐investigations. The main results are the following: 1 An increase of r s does not favour the growth of the precipitates during the reversion treatment. 2 At later reversion times the happening is obviously independent of the pre‐history of the samples. 3 The integral intensity is decreasing with increase of T rev , but the mean distance ( d )‐size ( r G ) relation between the precipitates is not changed remarkably up to T rev ≈ 200 °C in the early reversion stage.Conclusions from this behaviour are drawn.