Compression behavior of inter-particle regions in high-strength Al84Ni7Gd6Co3 alloy

Z. Wang; R. T. Qu; K. G. Prashanth; J. Eckert; S. Scudino

doi:10.1016/j.matlet.2016.08.090

Compression behavior of inter-particle regions in high-strength Al₈₄Ni₇Gd₆Co₃ alloy

Z. Wang, R. T. Qu, K. G. Prashanth, J. Eckert, S. Scudino

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

7 Citations (Scopus)

Abstract

We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al₈₄Ni₇Gd₆Co₃) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al₈₄Ni₇Gd₆Co₃ nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.

Original language	English
Pages (from-to)	25-28
Number of pages	4
Journal	Materials Letters
Volume	185
DOIs	https://doi.org/10.1016/j.matlet.2016.08.090
Publication status	Published - 2016 Dec 15

Keywords

Deformation and fracture
Metals and alloys
Sintering
Triple point

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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abstract = "We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al84Ni7Gd6Co3) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al84Ni7Gd6Co3 nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.",

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AU - Wang, Z.

AU - Qu, R. T.

AU - Prashanth, K. G.

AU - Eckert, J.

AU - Scudino, S.

PY - 2016/12/15

Y1 - 2016/12/15

N2 - We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al84Ni7Gd6Co3) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al84Ni7Gd6Co3 nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.

AB - We have studied the deformation behavior of the inter-particle regions using a high strength nanostructured alloy (Al84Ni7Gd6Co3) produced by hot pressing of amorphous powders. The inter-particle regions, including soft aluminum and pores, are relatively weak compared to the consolidated particles. Plastic deformation, crack branching and deflection are observed in the inter-particle regions, giving rise to the arrest of cracks. High density of stacking faults and/or nanotwins are formed in the inter-particle regions after plastic deformation. The fracture mode of the Al84Ni7Gd6Co3 nanostructured alloy changes from the inter-particle failure to trans-particle failure with decreasing volume fraction of the inter-particle regions.

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KW - Metals and alloys

KW - Sintering

KW - Triple point

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