Hot deformability of Ti2AlC/TiAl(Nb) composite

Xiu Wei Zhang; Rui Hu; Hong Wei Li; Jin Shan Li

doi:10.3969/j.issn.1007-2012.2013.04.013

Hot deformability of Ti₂AlC/TiAl(Nb) composite

Xiu Wei Zhang, Rui Hu, Hong Wei Li, Jin Shan Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

Abstract

The hot compressive deformation behaviour of Ti₂AlC/TiAl(Nb) composite was investigated in the temperature range of 1000°C-1150°C, at the strain rate range of 10^-3 s^-1-10^-1 s^-1 and the engineering strain range of 50% on Gleeble-3500 hot simulator. The true stress-true strain curves have been obtained. The results show that the flow stress is sensitive to temperature and strain rate. The flow stress increases with increasing the strain rate, and decreases with increasing the deformation temperature. This rule can be explained reasonably on the basis of the model of dislocation-particulate interactions during the hot deformation. The flow stress behaviour of Ti₂AlC/TiAl(Nb) composite can be represented by a Zener-Hollomon parameter in the exponent style equation. The regressed expression is ε̇=9.31×10¹¹ [sinh(0.0044σ)]^2.52exp[-366.2/(RT)]. The hot deformation activation energy of Ti₂AlC/TiAl(Nb) composite during hot deformation is 366.2 kJ/mol.

Original language	English
Pages (from-to)	66-70
Number of pages	5
Journal	Suxing Gongcheng Xuebao/Journal of Plasticity Engineering
Volume	20
Issue number	4
DOIs	https://doi.org/10.3969/j.issn.1007-2012.2013.04.013
State	Published - Aug 2013

Keywords

Constitutive equation
Dislocation-particulate interaction model
Flow stress
Hot deformation

Access to Document

10.3969/j.issn.1007-2012.2013.04.013

Cite this

@article{46ea2bb0368c42d39ba3ef2d73555891,

title = "Hot deformability of Ti2AlC/TiAl(Nb) composite",

abstract = "The hot compressive deformation behaviour of Ti2AlC/TiAl(Nb) composite was investigated in the temperature range of 1000°C-1150°C, at the strain rate range of 10-3 s-1-10-1 s-1 and the engineering strain range of 50% on Gleeble-3500 hot simulator. The true stress-true strain curves have been obtained. The results show that the flow stress is sensitive to temperature and strain rate. The flow stress increases with increasing the strain rate, and decreases with increasing the deformation temperature. This rule can be explained reasonably on the basis of the model of dislocation-particulate interactions during the hot deformation. The flow stress behaviour of Ti2AlC/TiAl(Nb) composite can be represented by a Zener-Hollomon parameter in the exponent style equation. The regressed expression is {\.ε}=9.31×1011 [sinh(0.0044σ)]2.52exp[-366.2/(RT)]. The hot deformation activation energy of Ti2AlC/TiAl(Nb) composite during hot deformation is 366.2 kJ/mol.",

keywords = "Constitutive equation, Dislocation-particulate interaction model, Flow stress, Hot deformation",

author = "Zhang, {Xiu Wei} and Rui Hu and Li, {Hong Wei} and Li, {Jin Shan}",

year = "2013",

month = aug,

doi = "10.3969/j.issn.1007-2012.2013.04.013",

language = "英语",

volume = "20",

pages = "66--70",

journal = "Suxing Gongcheng Xuebao/Journal of Plasticity Engineering",

issn = "1007-2012",

publisher = "Beijing Res. Inst. of Mechanical and Elec. Technology",

number = "4",

}

TY - JOUR

T1 - Hot deformability of Ti2AlC/TiAl(Nb) composite

AU - Zhang, Xiu Wei

AU - Hu, Rui

AU - Li, Hong Wei

AU - Li, Jin Shan

PY - 2013/8

Y1 - 2013/8

N2 - The hot compressive deformation behaviour of Ti2AlC/TiAl(Nb) composite was investigated in the temperature range of 1000°C-1150°C, at the strain rate range of 10-3 s-1-10-1 s-1 and the engineering strain range of 50% on Gleeble-3500 hot simulator. The true stress-true strain curves have been obtained. The results show that the flow stress is sensitive to temperature and strain rate. The flow stress increases with increasing the strain rate, and decreases with increasing the deformation temperature. This rule can be explained reasonably on the basis of the model of dislocation-particulate interactions during the hot deformation. The flow stress behaviour of Ti2AlC/TiAl(Nb) composite can be represented by a Zener-Hollomon parameter in the exponent style equation. The regressed expression is ε̇=9.31×1011 [sinh(0.0044σ)]2.52exp[-366.2/(RT)]. The hot deformation activation energy of Ti2AlC/TiAl(Nb) composite during hot deformation is 366.2 kJ/mol.

AB - The hot compressive deformation behaviour of Ti2AlC/TiAl(Nb) composite was investigated in the temperature range of 1000°C-1150°C, at the strain rate range of 10-3 s-1-10-1 s-1 and the engineering strain range of 50% on Gleeble-3500 hot simulator. The true stress-true strain curves have been obtained. The results show that the flow stress is sensitive to temperature and strain rate. The flow stress increases with increasing the strain rate, and decreases with increasing the deformation temperature. This rule can be explained reasonably on the basis of the model of dislocation-particulate interactions during the hot deformation. The flow stress behaviour of Ti2AlC/TiAl(Nb) composite can be represented by a Zener-Hollomon parameter in the exponent style equation. The regressed expression is ε̇=9.31×1011 [sinh(0.0044σ)]2.52exp[-366.2/(RT)]. The hot deformation activation energy of Ti2AlC/TiAl(Nb) composite during hot deformation is 366.2 kJ/mol.

KW - Constitutive equation

KW - Dislocation-particulate interaction model

KW - Flow stress

KW - Hot deformation

UR - http://www.scopus.com/inward/record.url?scp=84883009017&partnerID=8YFLogxK

U2 - 10.3969/j.issn.1007-2012.2013.04.013

DO - 10.3969/j.issn.1007-2012.2013.04.013

M3 - 文章

AN - SCOPUS:84883009017

SN - 1007-2012

VL - 20

SP - 66

EP - 70

JO - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

JF - Suxing Gongcheng Xuebao/Journal of Plasticity Engineering

IS - 4

ER -

Hot deformability of Ti₂AlC/TiAl(Nb) composite

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this