Influence of praseodymium on a solid - state oxidation kinetics of Al+6% Li alloy

被引：0

作者：

Nazarov, Sh. ^{[1
]}

Ganiev, I. ^{[2
]}

Calliari, I. ^{[3
]}

Gafarov, A. ^{[1
]}

Nazarov, D. ^{[4
]}

Yunusov, F. ^{[5
]}

机构：

[1] Technol Univ Tajikistan, Dushanbe 734061, Tajikistan

[2] Chem Inst, Dushanbe 734063, Tajikistan

[3] Univ Padua, I-35131 Padua, Italy

[4] LTD Innovat Rd Solut, Dushanbe 734063, Tajikistan

[5] Peter Great St Petersburg Polytech Univ, St Petersburg 195251, Russia

来源：

MATERIALS TODAY-PROCEEDINGS | 2020年 / 30卷

关键词：

Al+6% Li alloy; Praseodymium; Oxidation kinetics; Microstructure; Electron-probe microanalysis; RARE-EARTH-ELEMENTS; MECHANICAL-PROPERTIES; MICROSTRUCTURE; BEHAVIOR;

D O I：

10.1016/j.matpr.2019.12.386

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article describes the results of thermogravimetric analysis of the oxidation kinetics of Al +6% Li alloy modified by praseodymium in amount up to 0.5%. It is demonstrated that the addition of praseodymium to the alloy or an increase in temperature provides an increase in the oxidation rate of the initial alloy in the solid state. The apparent oxidation activation energy of the initial (basic) alloy (35.2 kJ/mol) decreases to17.3 kJ/mol for the alloy with 0.5% Pr. The oxidation curves of Al +6% Li + Pr alloys in the solid state are described by equations evidencing a hyperbolic mechanism of this process. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：408 / 412

页数：5

共 19 条

[1]

Berdiev A.E., 2011, SILUMINS MODIFIED EL

[2]

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[3] Effects of lanthanum addition on microstructure and mechanical properties of as-cast pure copper [J].