Three-dimensional morphology and composition of omega precipitates in a binary titanium-molybdenum alloy

被引：77

作者：

Devaraj, A. ^{[1
]}

Williams, R. E. A. ^{[2
]}

Nag, S. ^{[1
]}

Srinivasan, R. ^{[2
]}

Fraser, H. L. ^{[2
]}

Banerjee, R. ^{[1
]}

机构：

[1] Univ N Texas, Dept Mat Sci & Engn, Ctr Adv Res & Technol, Denton, TX 76203 USA

[2] Ohio State Univ, Dept Mat Sci & Engn, Ctr Accelerated Maturat Mat, Columbus, OH 43210 USA

来源：

SCRIPTA MATERIALIA | 2009年 / 61卷 / 07期

基金：

美国国家科学基金会;

关键词：

Titanium-molybdenum alloy; Atom probe tomography; Omega; Mo-rich core; TI-V ALLOYS; PHASE-TRANSFORMATIONS; BAINITE; MO;

D O I：

10.1016/j.scriptamat.2009.06.006

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：

Using atom probe tomography, the three-dimensional morphology and composition of nanoscale omega precipitates in a simple binary titanium-molybdenum alloy have been uniquely determined. The results include the average composition of the omega precipitates and the partitioning of Mo across the omega/beta interfaces. These investigations also revealed compositional inhomogeneity within the nanoscale precipitates, with the presence of a Mo-rich core, presumably arising from the relatively slow rate of Mo rejection during isothermal growth of these omega precipitates. (C) 2009 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：701 / 704

页数：4

共 24 条

[1]

BAINITE IN STEELS [J].

BHADESHIA, HKDH ;

CHRISTIAN, JW .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1990, 21 (04) :767-797

[2]

BLACKBURN MJ, 1968, T METALL SOC AIME, V242, P2461

[3]

OMEGA PHASE TRANSFORMATION IN TITANIUM ALLOYS AS AN EXAMPLE OF DISPLACEMENT CONTROLLED REACTIONS [J].

DEFONTAINE, D ;

PATON, NE ;

WILLIAMS, JC .

ACTA METALLURGICA, 1971, 19 (11) :1153-+

[4]

DUERIG RW, 1980, TITANIUM 80 SCI TECH, P1299

[5]

PHASE-TRANSFORMATIONS AND TENSILE PROPERTIES OF TI-10V-2FE-3AL [J].

DUERIG, TW ;

TERLINDE, GT ;

WILLIAMS, JC .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (12) :1987-1998

[6]

FROST PD, 1954, T AM SOC METAL, V46, P231

[7]

Hellman OC, 2000, MICROSC MICROANAL, V6, P437, DOI 10.1007/s100050010051

[8]

Impurities block the α to ω martensitic transformation in titanium [J].

Hennig, RG ;

Trinkle, DR ;

Bouchet, J ;

Srinivasan, SG ;

Albers, RC ;

Wilkins, JW .

NATURE MATERIALS, 2005, 4 (02) :129-133

[9]

FORMATION OF OMEGA PHASE IN TITANIUM AND ZIRCONIUM ALLOYS - A REVIEW [J].

HICKMAN, BS .

JOURNAL OF MATERIALS SCIENCE, 1969, 4 (06) :554-&

[10]

HICKMAN BS, 1969, T METALL SOC AIME, V245, P1329

← 1 2 3 →