TITLE:
Discontinuous Precipitation and Dissolution under the Influence of the Plastic Strain and Temperature in Al-15 at.%Zn and Al-30 at.%Zn Alloys
AUTHORS:
Mazouz Hamoudi, Bensaada Said, Mohamed Tewfik, Bouziane Bouziane, Laboratoire Larhyss
KEYWORDS:
Alloy Al-Zn; Discontinuous Precipitation; Dissolution; Temperature; Deformation
JOURNAL NAME:
Materials Sciences and Applications,
Vol.3 No.7,
July
19,
2012
ABSTRACT: The discontinuous precipitation and dissolution in the alloy Al-Zn system has been the subject of many theoretical and experimental investigations that have contributed to the understanding of the different mechanisms which control them. However, many questions remain unanswered because of the complexity of the constituted phases which are affected by the speed of the quenched, deformation, the temperature of homogenization and ageing effect. The purpose of this work is to clarify the effect of temperature and deformation on the mechanisms of these two reactions during ageing of Al-15 at.% Zn and Al-30 at.% Zn alloy. The techniques of analysis used in this respect are the optical microscopy, the X-ray diffraction and the hardness Vickers.