Residual microstructure associated with impact crater in Ti-6Al-4V meshes reinforced 5A06Al alloy matrix composite

Q. Guo; G. Q. Chen; L. T. Jiang; M. Hussain; X. L. Han; D. L. Sun; G. H. Wu

doi:10.1016/j.micron.2011.07.013

Residual microstructure associated with impact crater in Ti-6Al-4V meshes reinforced 5A06Al alloy matrix composite

Q. Guo^*
, G. Q. Chen
, L. T. Jiang
, M. Hussain
, X. L. Han
, D. L. Sun
, G. H. Wu

^*Corresponding author for this work

Harbin Institute of Technology
Polytechnic University of Turin

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

3 Scopus citations

Abstract

In this paper, TC4 _m/5A06Al composite was hypervelocity impacted by 2024 aluminium projectile with the diameter of 2mm and with the impact velocity of 3.5km/s. The residual microstructure was observed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HREM). The TC4-Al interface before impact was composed of TiAl ₃ phase and Ti ₃Al phase. Near the pithead, separation of TC4 fibers and Al matrix occurred along the impact direction. Around the middle of the crater, TC4 fibers were sheared into several sections. Near the bottom of crater, adiabatic shear band (ASB) occurred in TC4 fiber, while the angle between shear plane and cross section was 45°. The crack propagated along TC4-Ti ₃Al interface during impact and some Ti ₃Al phase at the TC4-Al interface transformed to amorphous with few nanocrystals after hypervelocity impact.

Original language	English
Pages (from-to)	201-204
Number of pages	4
Journal	Micron
Volume	43
Issue number	2-3
DOIs	https://doi.org/10.1016/j.micron.2011.07.013
State	Published - Feb 2012
Externally published	Yes

Keywords

Composites
Impact
Microstructure

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10.1016/j.micron.2011.07.013

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@article{521bfaf01da04e5a9efdf80687f8aab7,

title = "Residual microstructure associated with impact crater in Ti-6Al-4V meshes reinforced 5A06Al alloy matrix composite",

abstract = "In this paper, TC4 m/5A06Al composite was hypervelocity impacted by 2024 aluminium projectile with the diameter of 2mm and with the impact velocity of 3.5km/s. The residual microstructure was observed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HREM). The TC4-Al interface before impact was composed of TiAl 3 phase and Ti 3Al phase. Near the pithead, separation of TC4 fibers and Al matrix occurred along the impact direction. Around the middle of the crater, TC4 fibers were sheared into several sections. Near the bottom of crater, adiabatic shear band (ASB) occurred in TC4 fiber, while the angle between shear plane and cross section was 45°. The crack propagated along TC4-Ti 3Al interface during impact and some Ti 3Al phase at the TC4-Al interface transformed to amorphous with few nanocrystals after hypervelocity impact.",

keywords = "Composites, Impact, Microstructure",

author = "Q. Guo and Chen, \{G. Q.\} and Jiang, \{L. T.\} and M. Hussain and Han, \{X. L.\} and Sun, \{D. L.\} and Wu, \{G. H.\}",

year = "2012",

month = feb,

doi = "10.1016/j.micron.2011.07.013",

language = "英语",

volume = "43",

pages = "201--204",

journal = "Micron",

issn = "0968-4328",

publisher = "Elsevier Ltd",

number = "2-3",

}

TY - JOUR

T1 - Residual microstructure associated with impact crater in Ti-6Al-4V meshes reinforced 5A06Al alloy matrix composite

AU - Guo, Q.

AU - Chen, G. Q.

AU - Jiang, L. T.

AU - Hussain, M.

AU - Han, X. L.

AU - Sun, D. L.

AU - Wu, G. H.

PY - 2012/2

Y1 - 2012/2

N2 - In this paper, TC4 m/5A06Al composite was hypervelocity impacted by 2024 aluminium projectile with the diameter of 2mm and with the impact velocity of 3.5km/s. The residual microstructure was observed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HREM). The TC4-Al interface before impact was composed of TiAl 3 phase and Ti 3Al phase. Near the pithead, separation of TC4 fibers and Al matrix occurred along the impact direction. Around the middle of the crater, TC4 fibers were sheared into several sections. Near the bottom of crater, adiabatic shear band (ASB) occurred in TC4 fiber, while the angle between shear plane and cross section was 45°. The crack propagated along TC4-Ti 3Al interface during impact and some Ti 3Al phase at the TC4-Al interface transformed to amorphous with few nanocrystals after hypervelocity impact.

AB - In this paper, TC4 m/5A06Al composite was hypervelocity impacted by 2024 aluminium projectile with the diameter of 2mm and with the impact velocity of 3.5km/s. The residual microstructure was observed by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy (HREM). The TC4-Al interface before impact was composed of TiAl 3 phase and Ti 3Al phase. Near the pithead, separation of TC4 fibers and Al matrix occurred along the impact direction. Around the middle of the crater, TC4 fibers were sheared into several sections. Near the bottom of crater, adiabatic shear band (ASB) occurred in TC4 fiber, while the angle between shear plane and cross section was 45°. The crack propagated along TC4-Ti 3Al interface during impact and some Ti 3Al phase at the TC4-Al interface transformed to amorphous with few nanocrystals after hypervelocity impact.

KW - Composites

KW - Impact

KW - Microstructure

UR - https://www.scopus.com/pages/publications/84855223721

U2 - 10.1016/j.micron.2011.07.013

DO - 10.1016/j.micron.2011.07.013

M3 - 文章

AN - SCOPUS:84855223721

SN - 0968-4328

VL - 43

SP - 201

EP - 204

JO - Micron

JF - Micron

IS - 2-3

ER -

Residual microstructure associated with impact crater in Ti-6Al-4V meshes reinforced 5A06Al alloy matrix composite

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Keywords

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