Microstructural evolution and ductility improvement of a Ti-30Nb alloy with Pd addition

被引：45

作者：

Cui, C. Y. ^{[1
]}

Ping, D. H. ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2009年 / 471卷 / 1-2期

关键词：

beta-Type Ti alloy; omega-Ti-phase; Pd addition; Ductility; SHAPE-MEMORY BEHAVIOR; OMEGA-PHASE; MECHANICAL-PROPERTIES; TITANIUM;

D O I：

10.1016/j.jallcom.2008.03.057

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Small amount of Pd addition to beta-type Ti-Nb-based alloys can stabilize the beta-phase and suppress the coarsening of brittle omega particles in as-cast states and the formation of dendritic structure in a Ti-30Nb (wt.%) alloy, resulting in a room temperature ductility improvement. The as-cast Ti-30Nb ( wt.%) alloy fractured in a brittle manner due to the omega precipitation with a large size more than 50 nm; while the as-cast Ti-30Nb-3Pd alloy exhibited large tensile elongation (34%) and could be cold-rolled directly at room temperature. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：248 / 252

页数：5

共 27 条

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