Researches regarding the thermomechanical treatments influence on the structure and characteristics of the aluminium alloys for aeronautics

Résumé

The laboratory experiments were made on the two aluminium alloyed qualities used for aeronautical industry. More working conditions of the intermediary (PTMI) and finally (PTMF) thermomechanical treatments were used on the industrial rolled test-specimen. Also, the conventional thermal treatment was used, consisting of the solution quenching and artificial heat ageing, mode in more working condition, test. The structure and mechanical characteristics were analyzed and the gotten results were compared using those two types of the thermal and thermomechanical treatments. A significantly improvement of the mechanical characteristics was ascertained to the thermomechanical treated test-specimen.