Precipitation priority in 5083 Al-alloys containing small amounts of Cu or Zn. Issue 18 (12th December 2017)

• Record Type: Journal Article
• Authors: Chen, Wei; Luo, Binghui; Gao, Yang; Bai, Zhenhai; Jing, Huibo; Zhao, Jingwei
• Is Part Of: Materials science and technology. Volume 33:Issue 18(2017)
• Page Start: 2180
• Page End: 2187
• Publication Date: 2017-12-12
• Subjects: Precipitation priority -- modified 5083 Al alloys -- S-phase -- η-phase -- high-angle annular dark field -- high-resolution transmission electron microscopy -- thermodynamic data; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2017.1334321
• Languages: English
• ISSNs: 0267-0836

Abstract

ABSTRACT: This study investigated the precipitation priority in Al–Mg alloys modified by the addition of 0.8 wt-% Cu or Zn, revealing that both these alloys exhibit increased hardness and decreased corrosion resistance. Scanning electron microscopy, transmission electron microscopy, and high-angle annular dark field imaging show that the precipitation priority changed the main second-phase particles of Cu- and Zn-containing alloys. Additionally, thermodynamic data of these phases were calculated using a semi-empirical model, showing good agreement with the experimental results. This paper is part of a thematic issue on Light Alloys.