Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131

Chakravarthy G V; Malte Storm; Benjamin C. Palmer; John J. Lewandowski; Philip Withers; N.J. Henry Holroyd; Timothy Burnett

doi:10.1016/j.corsci.2020.108834

Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131

Chakravarthy G V, Malte Storm, Benjamin C. Palmer, John J. Lewandowski, Philip Withers, N.J. Henry Holroyd, Timothy Burnett

Materials Engineering

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

Abstract

Environment Induced Cracking (EIC) has been observed in three dimensions (3D) at high spatial and temporal resolution for AA5083 H131 alloy using in situ synchrotron X-ray CT. The initiation of EIC cracks occurred in humid air at ∼0.5σy and started from corrosion sites associated with intermetallic particle clusters. Time-resolved monitoring of the crack growth confirmed cracks grow below threshold KIEIC and are susceptible to arrest under fixed displacement conditions. Even when the cracks exceed threshold KIEIC and enter sustained propagation they exhibit very uneven growth rates. Failure occurs when the K of the largest crack exceeds the fracture toughness KIC.

Original language	English
Journal	Corrosion Science
Early online date	27 Jun 2020
DOIs	https://doi.org/10.1016/j.corsci.2020.108834
Publication status	Published - 1 Sept 2020

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10.1016/j.corsci.2020.108834

Next Generation Multi-Dimensional X-ray Imaging
Withers, P. (PI), Burke, G. (CoI), Cernik, R. (CoI), Haigh, S. (CoI), Lee, P. (CoI) & Lionheart, W. (CoI)
1/02/15 → 31/01/20
Project: Research
Structural Evolution across multiple time and length scales
Withers, P. (PI), Cartmell, S. (CoI), Cernik, R. (CoI), Derby, B. (CoI), Eichhorn, S. (CoI), Freemont, A. (CoI), Hollis, C. (CoI), Mummery, P. (CoI), Sherratt, M. (CoI), Thompson, G. (CoI) & Watts, D. (CoI)
1/06/11 → 31/05/16
Project: Research

Cite this

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title = "Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131",

abstract = "Environment Induced Cracking (EIC) has been observed in three dimensions (3D) at high spatial and temporal resolution for AA5083 H131 alloy using in situ synchrotron X-ray CT. The initiation of EIC cracks occurred in humid air at ∼0.5σy and started from corrosion sites associated with intermetallic particle clusters. Time-resolved monitoring of the crack growth confirmed cracks grow below threshold KIEIC and are susceptible to arrest under fixed displacement conditions. Even when the cracks exceed threshold KIEIC and enter sustained propagation they exhibit very uneven growth rates. Failure occurs when the K of the largest crack exceeds the fracture toughness KIC.",

author = "{G V}, Chakravarthy and Malte Storm and Palmer, {Benjamin C.} and Lewandowski, {John J.} and Philip Withers and Holroyd, {N.J. Henry} and Timothy Burnett",

year = "2020",

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day = "1",

doi = "10.1016/j.corsci.2020.108834",

language = "English",

journal = "Corrosion Science",

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T1 - Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131

AU - G V, Chakravarthy

AU - Storm, Malte

AU - Palmer, Benjamin C.

AU - Lewandowski, John J.

AU - Withers, Philip

AU - Holroyd, N.J. Henry

AU - Burnett, Timothy

PY - 2020/9/1

Y1 - 2020/9/1

N2 - Environment Induced Cracking (EIC) has been observed in three dimensions (3D) at high spatial and temporal resolution for AA5083 H131 alloy using in situ synchrotron X-ray CT. The initiation of EIC cracks occurred in humid air at ∼0.5σy and started from corrosion sites associated with intermetallic particle clusters. Time-resolved monitoring of the crack growth confirmed cracks grow below threshold KIEIC and are susceptible to arrest under fixed displacement conditions. Even when the cracks exceed threshold KIEIC and enter sustained propagation they exhibit very uneven growth rates. Failure occurs when the K of the largest crack exceeds the fracture toughness KIC.

AB - Environment Induced Cracking (EIC) has been observed in three dimensions (3D) at high spatial and temporal resolution for AA5083 H131 alloy using in situ synchrotron X-ray CT. The initiation of EIC cracks occurred in humid air at ∼0.5σy and started from corrosion sites associated with intermetallic particle clusters. Time-resolved monitoring of the crack growth confirmed cracks grow below threshold KIEIC and are susceptible to arrest under fixed displacement conditions. Even when the cracks exceed threshold KIEIC and enter sustained propagation they exhibit very uneven growth rates. Failure occurs when the K of the largest crack exceeds the fracture toughness KIC.

U2 - 10.1016/j.corsci.2020.108834

DO - 10.1016/j.corsci.2020.108834

M3 - Article

SN - 0010-938X

JO - Corrosion Science

JF - Corrosion Science

ER -

Environmentally induced crack (EIC) initiation, propagation, and failure: A 3D in-situ time-lapse study of AA5083 H131

Abstract

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Projects

Next Generation Multi-Dimensional X-ray Imaging

Structural Evolution across multiple time and length scales

Cite this