Next Article in Journal
Effects of Current Stressing on the Grain Structure and Mechanical Properties of Ag-Alloy Bonding Wires with Various Pd and Au Contents
Next Article in Special Issue
High-Temperature Compressive Resistance and Mechanical Properties Improvement of Strain-Induced Melt Activation-Processed Al-Mg-Si Aluminum Alloy
Previous Article in Journal
Investigation on a Novel Laser Impact Spot Welding
Previous Article in Special Issue
Substructural Alignment during ECAE Processing of an Al-0.1Mg Aluminium Alloy
Article Menu

Export Article

Open AccessArticle
Metals 2016, 6(8), 180;

Differential Scanning Calorimetry and Thermodynamic Predictions—A Comparative Study of Al-Zn-Mg-Cu Alloys

Institute of Nonferrous Metallurgy, Montanuniversitaet Leoben, Franz-Josef-Str. 18, Leoben 8700, Austria
Laboratory of Metal Physics and Technology, Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 4, Zürich 8093, Switzerland
AMAG rolling GmbH, P.O. Box 32, Ranshofen 5282, Austria
Author to whom correspondence should be addressed.
Academic Editor: Nong Gao
Received: 31 May 2016 / Revised: 28 July 2016 / Accepted: 29 July 2016 / Published: 3 August 2016
(This article belongs to the Special Issue Aluminum Alloys)
View Full-Text   |   Download PDF [2471 KB, uploaded 4 August 2016]   |  


Al-Zn-Mg-Cu alloys are widely used in aircraft applications because of their superior mechanical properties and strength/weight ratios. Commercial Al-Zn-Mg-Cu alloys have been intensively studied over the last few decades. However, well-considered thermodynamic calculations, via the CALPHAD approach, on a variation of alloying elements can guide the fine-tuning of known alloy systems and the development of optimized heat treatments. In this study, a comparison was made of the solidus temperatures of different Al-Zn-Mg-Cu alloys determined from thermodynamic predictions and differential scanning calorimetry (DSC) measurements. A variation of the main alloying elements Zn, Mg, and Cu generated 38 experimentally produced alloys. An experimental determination of the solidus temperature via DSC was carried out according to a user-defined method, because the broad melting interval present in Al-Zn-Mg-Cu alloys does not allow the use of the classical onset method for pure substances. The software algorithms implemented in FactSage®, Pandat™, and MatCalc with corresponding commercially available databases were deployed for thermodynamic predictions. Based on these investigations, the predictive power of the commercially available CALPHAD databases and software packages was critically reviewed. View Full-Text
Keywords: aluminium alloys; Al-Zn-Mg-Cu alloys; CALPHAD; differential scanning calorimetry aluminium alloys; Al-Zn-Mg-Cu alloys; CALPHAD; differential scanning calorimetry

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Kolb, G.K.-H.; Scheiber, S.; Antrekowitsch, H.; Uggowitzer, P.J.; Pöschmann, D.; Pogatscher, S. Differential Scanning Calorimetry and Thermodynamic Predictions—A Comparative Study of Al-Zn-Mg-Cu Alloys. Metals 2016, 6, 180.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top