A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Influence of Cu content on ageing behavior of AlSiMgCu cast alloys
AbstractThe influence of Cu content on ageing behavior of Al–8Si–0.4Mg–xCu alloys has been investigated by hardness measurement, differential scanning calorimety (DSC) and transmission electron microscopy (TEM) analysis. Experiments have been conducted for Al–8Si–0.4Mg–xCu alloys with 1wt%Cu, 2wt%Cu, 3wt%Cu, and 4wt%Cu produced in permanent moulds. Hardness has been estimated for ageing times varying from 1h to 100h. The results indicate that the maximum hardness increases clearly with the increase of Cu content, but the total increase in hardness during ageing (ΔHVmax) decreases with addition of 1wt%Cu and has a little increase with Cu content from 1wt% to 4wt%. Addition of Cu decreases the age hardening rate. The differential scanning calorimetry measurement and transmission electron microscopy analysis results suggest that addition of Cu to Al–8Si–0.4Mg alloy restrained the precipitation of β″ and β′ phases, but Q″ phase precipitated for Al–8Si–0.4Mg–1Cu alloy, and Q″ and θ′ phases precipitated for Al–8Si–0.4Mg–xCu alloys with more than 1wt%Cu. The precipitation behaviors and effect of precipitates on age hardening behaviors have been discussed.
Influence of Cu content on ageing behavior of AlSiMgCu cast alloys
AbstractThe influence of Cu content on ageing behavior of Al–8Si–0.4Mg–xCu alloys has been investigated by hardness measurement, differential scanning calorimety (DSC) and transmission electron microscopy (TEM) analysis. Experiments have been conducted for Al–8Si–0.4Mg–xCu alloys with 1wt%Cu, 2wt%Cu, 3wt%Cu, and 4wt%Cu produced in permanent moulds. Hardness has been estimated for ageing times varying from 1h to 100h. The results indicate that the maximum hardness increases clearly with the increase of Cu content, but the total increase in hardness during ageing (ΔHVmax) decreases with addition of 1wt%Cu and has a little increase with Cu content from 1wt% to 4wt%. Addition of Cu decreases the age hardening rate. The differential scanning calorimetry measurement and transmission electron microscopy analysis results suggest that addition of Cu to Al–8Si–0.4Mg alloy restrained the precipitation of β″ and β′ phases, but Q″ phase precipitated for Al–8Si–0.4Mg–1Cu alloy, and Q″ and θ′ phases precipitated for Al–8Si–0.4Mg–xCu alloys with more than 1wt%Cu. The precipitation behaviors and effect of precipitates on age hardening behaviors have been discussed.
Influence of Cu content on ageing behavior of AlSiMgCu cast alloys
Wang, Guiqing (author) / Sun, Qingzhou (author) / Feng, Liming (author) / Hui, Luo (author) / Jing, Cainian (author)
2005-11-18
5 pages
Article (Journal)
Electronic Resource
English
Influence of Cu content on ageing behavior of AlSiMgCu cast alloys
| British Library Online Contents | 2007
As-Cast Ageing of Aluminum Alloys
| British Library Online Contents | 2002
Ageing and Fatigue Behaviour in Cast Aluminium Alloys
| British Library Online Contents | 2002
Influence of Mg content on ageing precipitation behavior of Al-Cu-Li-x alloys
| British Library Online Contents | 2019
Ageing behavior of as-cast SiCp/AZ91 Mg matrix composites
| British Library Online Contents | 2017