Alloy properties can considwably be iinproved by the addition of small amount of alloying elements, which might cause the decrease of production cost, as well. Transition metals are generally applied as addition elements in age-hardenable aluminium alloys (BABA 1968(BABA , 1970; GROMA, KOV~CS-CSETE
Precipitation processes in AlZn5Mg2CuX alloys
✍ Scribed by Drs. P. Nagy; Dr. E. Kovács-Csetényi; T. Turmezey; Dr. G. Y. Honyek; Prof. Dr. I. Kovács
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 183 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0232-1300
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## Abstract The structural changes during ageing of an alloy containing 3.5 wt.pct Zn and 4 wt.pct Mg were studied by means of transmission electron microscopy. It was shown that the precipitation process in this alloy differs from that in the alloys having high Zn/Mg ratios. The following phases w
An expression is derived for the increase in the Gibbs' free energy which arises from the mixing of a total amount of 1 mole of the components of a binary system. The six constants of this expression are calculated for the gold-platinum system from experimental data. A comparison of this expression