A Calorimetric Study on the Precipitation of T<sub>1</sub> Phase during the Ageing of an Al-Li-Cu-Zr Alloy-Reference-Cited by-同舟云学术

A Calorimetric Study on the Precipitation of T₁ Phase during the Ageing of an Al-Li-Cu-Zr Alloy

Published:2008-02 Issue: Volume:273-276 Page:14-17
ISSN:1662-9507
Container-title:Defect and Diffusion Forum
language:
Short-container-title:DDF

Author:

Ahmadi Shahram¹,Shokuhfar Ali²,Abotalebi M.R.³,Rezaei Arash⁴

Affiliation:

1. Tarbiat Modares University

2. Mapna Locomotive Company (MLC), Mapna Group

3. Iran University of Science and Technology

4. K.N. Toosi University of Technology

Abstract

The precipitation of T1 phase during the ageing of an Al- Li- Cu -Zr alloy sheet was studied by DSC (Differential Scanning Calorimetric) technique. Results showed that precipitation of T1 phase occurred in temperature range of 250°C to 300°C whereas its dissolution occurred within the temperature of 450°C to 530°C. Furthermore, activation energies for precipitation and dissolution of T1 phase were determined 122.1 kJ/mol and 130.3 kJ/mol, respectively.

Publisher

Trans Tech Publications, Ltd.

Subject

Condensed Matter Physics,General Materials Science,Radiation

Link

https://www.scientific.net/DDF.273-276.14.pdf

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