Superplastic tensile characteristics of in situ TiBw/Ti6Al4V composites with novel network microstructure

L. J. Huang; Y. Z. Zhang; B. X. Liu; X. Q. Song; L. Geng; L. Z. Wu

doi:10.1016/j.msea.2013.05.076

Superplastic tensile characteristics of in situ TiBw/Ti6Al4V composites with novel network microstructure

L. J. Huang
, Y. Z. Zhang
, B. X. Liu
, X. Q. Song
, L. Geng^*
, L. Z. Wu

^*Corresponding author for this work

Harbin Institute of Technology
Harbin Institute of Technology

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

31 Scopus citations

Abstract

In situ TiB whiskers reinforced Ti6Al4V (TiBw/Ti64) composites were fabricated by tailoring a novel network microstructure-which improved the strengthening and toughening effects of titanium matrix composites (TMCs). Superplastic tensile deformation of the composites was carried out at 900-1000°C and 0.0005-0.01s^-1. The results showed that the tensile elongation of the novel composites is over 100%, even up to 214% at 940°C. The strain rate sensitivity (m) and the activation energy (Q) of the novel composites are 0.25 and 338kJ/mol, respectively. These phenomena indicate that the novel composites possess an improved deformability. The superplasticity of the TiBw/Ti64 composites can be attributed to the novel network microstructure, which can induce superior deformability by inhibiting local deformation, decreasing crack propagation rate and refining grain size.

Original language	English
Pages (from-to)	128-132
Number of pages	5
Journal	Materials Science and Engineering: A
Volume	581
DOIs	https://doi.org/10.1016/j.msea.2013.05.076
State	Published - 1 Oct 2013
Externally published	Yes

Keywords

Activation energy
Fracture
Network microstructure
Powder metallurgy
Superplasticity
Titanium matrix composites

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10.1016/j.msea.2013.05.076

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@article{a7172ef2d8294665a913b244d29ad6cb,

title = "Superplastic tensile characteristics of in situ TiBw/Ti6Al4V composites with novel network microstructure",

abstract = "In situ TiB whiskers reinforced Ti6Al4V (TiBw/Ti64) composites were fabricated by tailoring a novel network microstructure-which improved the strengthening and toughening effects of titanium matrix composites (TMCs). Superplastic tensile deformation of the composites was carried out at 900-1000°C and 0.0005-0.01s-1. The results showed that the tensile elongation of the novel composites is over 100\%, even up to 214\% at 940°C. The strain rate sensitivity (m) and the activation energy (Q) of the novel composites are 0.25 and 338kJ/mol, respectively. These phenomena indicate that the novel composites possess an improved deformability. The superplasticity of the TiBw/Ti64 composites can be attributed to the novel network microstructure, which can induce superior deformability by inhibiting local deformation, decreasing crack propagation rate and refining grain size.",

keywords = "Activation energy, Fracture, Network microstructure, Powder metallurgy, Superplasticity, Titanium matrix composites",

author = "Huang, \{L. J.\} and Zhang, \{Y. Z.\} and Liu, \{B. X.\} and Song, \{X. Q.\} and L. Geng and Wu, \{L. Z.\}",

year = "2013",

month = oct,

day = "1",

doi = "10.1016/j.msea.2013.05.076",

language = "英语",

volume = "581",

pages = "128--132",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Superplastic tensile characteristics of in situ TiBw/Ti6Al4V composites with novel network microstructure

AU - Huang, L. J.

AU - Zhang, Y. Z.

AU - Liu, B. X.

AU - Song, X. Q.

AU - Geng, L.

AU - Wu, L. Z.

PY - 2013/10/1

Y1 - 2013/10/1

N2 - In situ TiB whiskers reinforced Ti6Al4V (TiBw/Ti64) composites were fabricated by tailoring a novel network microstructure-which improved the strengthening and toughening effects of titanium matrix composites (TMCs). Superplastic tensile deformation of the composites was carried out at 900-1000°C and 0.0005-0.01s-1. The results showed that the tensile elongation of the novel composites is over 100%, even up to 214% at 940°C. The strain rate sensitivity (m) and the activation energy (Q) of the novel composites are 0.25 and 338kJ/mol, respectively. These phenomena indicate that the novel composites possess an improved deformability. The superplasticity of the TiBw/Ti64 composites can be attributed to the novel network microstructure, which can induce superior deformability by inhibiting local deformation, decreasing crack propagation rate and refining grain size.

AB - In situ TiB whiskers reinforced Ti6Al4V (TiBw/Ti64) composites were fabricated by tailoring a novel network microstructure-which improved the strengthening and toughening effects of titanium matrix composites (TMCs). Superplastic tensile deformation of the composites was carried out at 900-1000°C and 0.0005-0.01s-1. The results showed that the tensile elongation of the novel composites is over 100%, even up to 214% at 940°C. The strain rate sensitivity (m) and the activation energy (Q) of the novel composites are 0.25 and 338kJ/mol, respectively. These phenomena indicate that the novel composites possess an improved deformability. The superplasticity of the TiBw/Ti64 composites can be attributed to the novel network microstructure, which can induce superior deformability by inhibiting local deformation, decreasing crack propagation rate and refining grain size.

KW - Activation energy

KW - Fracture

KW - Network microstructure

KW - Powder metallurgy

KW - Superplasticity

KW - Titanium matrix composites

UR - https://www.scopus.com/pages/publications/84879810945

U2 - 10.1016/j.msea.2013.05.076

DO - 10.1016/j.msea.2013.05.076

M3 - 文章

AN - SCOPUS:84879810945

SN - 0921-5093

VL - 581

SP - 128

EP - 132

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Superplastic tensile characteristics of in situ TiBw/Ti6Al4V composites with novel network microstructure

Abstract

Keywords

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