Paper Title:
Effect of Solution Heat Treatment Time on a Rheocast Al-Zn-Mg-Cu Alloy
  Abstract

During rheo-high pressure die casting (R-HPDC) of Al‑Zn-Mg-Cu alloys a coarse eutectic phase is formed. This eutectic phase is difficult to take into solution because of its size and it would require longer solution heat treatment times. The objective of this work was to determine the time for sufficient dissolution of the eutectic phase in this Al-Zn-Mg-Cu alloy. Solution heat treatment was carried out at 473°C for various time periods and the samples were quenched in water. The samples were then artificially aged at 120°C for 24 hrs. A component of the eutectic was observed to have dissolved and another component transformed to new intermetallic phases for all solution heat treatment times at 473°C.

  Info
Periodical
Chapter
Chapter 5: Microstructure and Properties
Edited by
Hajo Dieringa, Norbert Hort and Karl Ulrich Kainer
Pages
343-346
DOI
10.4028/www.scientific.net/MSF.690.343
Citation
N. E. Mazibuko, U. A. Curle, "Effect of Solution Heat Treatment Time on a Rheocast Al-Zn-Mg-Cu Alloy", Materials Science Forum, Vol. 690, pp. 343-346, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: E. Evangelista, Marcello Cabibbo, S. Spigarelli, C. Scalabroni, Luigi Balloni, R. Villa, G.L. Chiarmetta
Abstract:The tensile properties and the microstructure of an Al-7%Si-0.6%Mg-0.5%Cu rheo-cast component were investigated. The material underwent a T5...
522
Authors: Gui Qing Wang, Zhong Kui Zhao, Yan Liu
Abstract:The present work was performed on Al11Si3Cu0.35Mg samples cast in a permanent mold preheated to 200 °C. The tensile properties for varies...
357
Authors: Mohammad M. Haque, Ahsan Ali Khan
Abstract:Aluminium-silicon alloys have low density, high electrical and thermal conductivity and high resistance to corrosion at ambient temperature....
291
  | Authors: S. Mohsen Sadrossadat, Sten Johansson
Abstract:Improved mechanical and physical properties of an Al-Si alloy as a well-known casting alloy is strongly dependent upon the morphology of...
505
Authors: Tomasz Rzychoń
Abstract:The paper presents results of DSC and microstructural investigations of Mg-6Al-1Ca-1Sr-0.3Mn (ACJ611) and Mg-8Al-3Ca-1Sr-0.2Mn (ACJ831)...
477