Controlling the thermal expansion of Ti alloys

被引：30

作者：

Abdel-Hady, Mohamed ^{[1
,2
]}

Morinaga, Masahiko ^{[1
]}

机构：

[1] Nagoya Univ, Dept Mat Sci & Engn, Grad Sch Engn, Chikusa Ku, Aichi 4648603, Japan

[2] Cent Met R&D Inst, Dept Met Technol, El Tabbin, Egypt

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 08期

基金：

日本学术振兴会;

关键词：

Thermal expasion; Cold deformation; Elastic softening; PHASE-STABILITY;

D O I：

10.1016/j.scriptamat.2009.07.007

中图分类号：

TB3 [工程材料学];

学科分类号：

082905 [生物质能源与材料];

摘要：

New tools to design Ti alloys with controllable coefficients of thermal expansion (CTEs) are presented based on a careful selection of alloying elements and proper thermomechanical treatments. Control of the CTE was achievable in those alloys with high elastic softening and large elastic anisotropy, since they tend to form a unique internal structure by cold deformation. This unique structure is proposed to contribute to the negative thermal expansion, and hence it is a key factor in producing zero thermal expansion alloys. The unique zero thermal expansion behavior of the alloys is fully reversible over a wide temperature range below the austenite start temperature. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：825 / 827

页数：3

共 9 条

[1]

Change in anisotropy of mechanical properties with β-phase stability in high Zr-containing Ti-based alloys [J].