A calorimetric study on the precipitation of T1 phase during the ageing of an Al-Li-Cu-Zr alloy

被引：3

作者：

Ahmadi, S. ^{[1
]}

Shokuhfar, A. ^{[1
]}

Abotalebi, M. R. ^{[2
]}

Rezaei, A. ^{[1
]}

机构：

[1] KN Toosi Univ Technol, Dept Mat Sci, Fac Mech Engn, Tehran, Iran

[2] Iran Univ Sci & Technol, Dept Met & Mat Engn, Tehran, Iran

来源：

DIFFUSION IN SOLIDS AND LIQUIDS III | 2008年 / 273-276卷

关键词：

aluminum-lithium alloys; GP zones; differential scanning calorimetric; activation energy;

D O I：

10.4028/www.scientific.net/DDF.273-276.14

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The precipitation of T-1 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 T-1 phase occurred in temperature range of 250 degrees C to 300 degrees C whereas its dissolution occurred within the temperature of 450 degrees C to 530 degrees C. Furthermore, activation energies for precipitation and dissolution of T, phase were determined 122.1 kJ/mol and 130.3 kJ/mol, respectively.

引用

页码：14 / +

页数：2

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