Effect of aging time 200 °C on microstructure behavior of Al- Zn-Cu-Mg cast alloys

Pratiwi, Diah Kusuma (2017) Effect of aging time 200 °C on microstructure behavior of Al- Zn-Cu-Mg cast alloys. MATEC Web of Conferences, 101 (01008). pp. 1-6. ISSN 2261-236X

Text matecconf_sicest2017_01008.pdf Download (2MB)

Abstract

Al-Zn-Cu-Mg is a heat-treatable alloy that can be used in many high-tech applications, such as aerospace and military. The main objective of this study is to investigate the influence of the ageing process in the microstructures behaviour of Al-9Zn-5Cu-4Mg cast alloy by performing SEM analysis and its correlation with hardness tests of as-cast Al-9Zn-5Cu-4Mg alloy and heat treated Al-9Zn-5Cu-4Mg cast alloy. The results show the deployment of precipitation spread over the dendrite and also the presence of second phases Mg3Zn3Al2, Cu2FeAl7, CuAl2, and CuMgAl2 in as-cast Al-9Zn-5Cu-4Mg alloy. The presence of all these second phases are affecting to the toughness of aluminium alloy and the presence of MgZn2 leads to the impairment of the hardness value of heat-treated Al-9Zn-5Cu-5Mg cast alloy.

Item Type:	Article
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ1-1570 Mechanical engineering and machinery
Divisions:	03-Faculty of Engineering > 21201-Mechanical Engineering (S1)
Depositing User:	Dr. Ir. Diah Kusuma Pratiwi
Date Deposited:	21 Jun 2023 08:22
Last Modified:	21 Jun 2023 08:22
URI:	http://repository.unsri.ac.id/id/eprint/112734

Actions (login required)

View Item