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

8 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

Access to Document

10.1016/j.matlet.2016.08.090

Cite this

@article{c8a30b6bbd4943508d606d418344a655,

title = "Compression behavior of inter-particle regions in high-strength Al84Ni7Gd6Co3 alloy",

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.",

keywords = "Deformation and fracture, Metals and alloys, Sintering, Triple point",

author = "Z. Wang and Qu, {R. T.} and Prashanth, {K. G.} and J. Eckert and S. Scudino",

year = "2016",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2016.08.090",

language = "English",

volume = "185",

pages = "25--28",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

}

TY - JOUR

T1 - Compression behavior of inter-particle regions in high-strength Al84Ni7Gd6Co3 alloy

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.

KW - Deformation and fracture

KW - Metals and alloys

KW - Sintering

KW - Triple point

UR - http://www.scopus.com/inward/record.url?scp=84989948832&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84989948832&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2016.08.090

DO - 10.1016/j.matlet.2016.08.090

M3 - Article

AN - SCOPUS:84989948832

VL - 185

SP - 25

EP - 28

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -