Mechanical properties and deformation behaviour of a niobium alloy with different carbon contents

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Mechanical properties and deformation behaviour of a niobium alloy with different carbon contents. / Ding, Rengen; Jones, Ian.

In: Materials Science and Engineering A, Vol. 497, No. 1-2, 15.12.2008, p. 301-308.

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@article{1f15d07cd1744ece8be4a09f043b395c,
title = "Mechanical properties and deformation behaviour of a niobium alloy with different carbon contents",
abstract = "The mechanical behaviour of Nb35Ti6Al5Cr8V (at.%) containing different C contents (0, 1, 10 at.%) has been investigated. Both conventional constant strain rate deformation and compressive creep tests have been performed and the deformation microstructures have been examined using transmission electron microscopy (TEM). At room temperature all three alloys deform primarily by slip, with some mechanical twinning. Deformation at higher temperatures occurs by a combination of dislocation glide and climb processes, giving more homogeneous microstructures. Most of the dislocations in the matrix of these alloys have Burgers vector b = 1/2 although some short segments with b = were also observed where two dislocations with b = 1/2 interact during high-temperature deformation. Deformation of carbide at high temperatures occurs primarily by {1 1 1} slip. The presence of extensive carbides resulted in a substantial increase in yield strength at room and high temperatures and improved creep resistance. (C) 2008 Elsevier B.V. All rights reserved.",
keywords = "Nb-Ti-Al alloy, Microstructure, Mechanical properties",
author = "Rengen Ding and Ian Jones",
year = "2008",
month = dec,
day = "15",
doi = "10.1016/j.msea.2008.07.038",
language = "English",
volume = "497",
pages = "301--308",
journal = "Materials Science and Engineering A",
issn = "0921-5093",
publisher = "Elsevier",
number = "1-2",

}

RIS

TY - JOUR

T1 - Mechanical properties and deformation behaviour of a niobium alloy with different carbon contents

AU - Ding, Rengen

AU - Jones, Ian

PY - 2008/12/15

Y1 - 2008/12/15

N2 - The mechanical behaviour of Nb35Ti6Al5Cr8V (at.%) containing different C contents (0, 1, 10 at.%) has been investigated. Both conventional constant strain rate deformation and compressive creep tests have been performed and the deformation microstructures have been examined using transmission electron microscopy (TEM). At room temperature all three alloys deform primarily by slip, with some mechanical twinning. Deformation at higher temperatures occurs by a combination of dislocation glide and climb processes, giving more homogeneous microstructures. Most of the dislocations in the matrix of these alloys have Burgers vector b = 1/2 although some short segments with b = were also observed where two dislocations with b = 1/2 interact during high-temperature deformation. Deformation of carbide at high temperatures occurs primarily by {1 1 1} slip. The presence of extensive carbides resulted in a substantial increase in yield strength at room and high temperatures and improved creep resistance. (C) 2008 Elsevier B.V. All rights reserved.

AB - The mechanical behaviour of Nb35Ti6Al5Cr8V (at.%) containing different C contents (0, 1, 10 at.%) has been investigated. Both conventional constant strain rate deformation and compressive creep tests have been performed and the deformation microstructures have been examined using transmission electron microscopy (TEM). At room temperature all three alloys deform primarily by slip, with some mechanical twinning. Deformation at higher temperatures occurs by a combination of dislocation glide and climb processes, giving more homogeneous microstructures. Most of the dislocations in the matrix of these alloys have Burgers vector b = 1/2 although some short segments with b = were also observed where two dislocations with b = 1/2 interact during high-temperature deformation. Deformation of carbide at high temperatures occurs primarily by {1 1 1} slip. The presence of extensive carbides resulted in a substantial increase in yield strength at room and high temperatures and improved creep resistance. (C) 2008 Elsevier B.V. All rights reserved.

KW - Nb-Ti-Al alloy

KW - Microstructure

KW - Mechanical properties

U2 - 10.1016/j.msea.2008.07.038

DO - 10.1016/j.msea.2008.07.038

M3 - Article

VL - 497

SP - 301

EP - 308

JO - Materials Science and Engineering A

JF - Materials Science and Engineering A

SN - 0921-5093

IS - 1-2

ER -