Thermal expansion of Al3Sc and Al3(Sc0.75X0.25)

被引：78

作者：

Harada, Y

Dunand, DC

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] Natl Inst Adv Ind Sci & Technol, Inst Mech Syst Engn, Tsukuba, Ibaraki 3058564, Japan

来源：

SCRIPTA MATERIALIA | 2003年 / 48卷 / 03期

关键词：

intermetallic compound; aluminum alloys; thermal expansion; scandium; PHYSICAL-PROPERTIES; ALLOYS; PRECIPITATION;

D O I：

10.1016/S1359-6462(02)00428-1

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The thermal expansion coefficient of Al3Sc and Al-3(Sc0.75X0.25), where X is Ti, Y, Zr or Hf, was measured by dilatometry between 25 and 1000 degreesC. The measured value, (16 +/- 1) X 10(-6) K-1, is constant between 25 and 900 degreesC and insensitive to alloying element. Good agreement is found with a literature value determined from first-principle calculations. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：219 / 222

页数：4

共 15 条

[1] Structural, vibrational, and thermodynamic properties of Al-Sc alloys and intermetallic compounds [J].