A study of the effect of precipitation hardening on the yield behaviour in torsion of an Al-Zn-Mg alloy has been carried out. Two modes of unstable yield behaviour were observed. As-quenched and well over-aged specimens exhibited serrated yielding. Specimens aged at elevated temperatures exhibited
✦ LIBER ✦
Dislocation motion in a dispersion hardened AlZnMg alloy and its plastic properties
✍ Scribed by Messerschmidt, U. ;Appel, F. ;Bartsch, M. ;Gerlach, R.
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 778 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0031-8965
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Fine-scale precipitation of the g 0 phase and its precursors are essential for the mechanical properties of Al-4.6 wt%Zn-1.2 wt%Mg alloy. This paper deals with an investigation of precipitation in an industrial Al-Zn-Mg alloy at various stages of a conventional two-step ageing treatment at 70 °C and