Effect of tool profile and fatigue loading on the local hardness around scratches in clad and unclad aluminium alloy 2024

Kashif Khan; Michael Fitzpatrick; Sarah Hainsworth; L. Edwards

doi:10.1016/j.msea.2009.07.035

Effect of tool profile and fatigue loading on the local hardness around scratches in clad and unclad aluminium alloy 2024

Kashif Khan, Michael Fitzpatrick, Sarah Hainsworth, L. Edwards

College of Engineering, Environment & Science

University of Leicester

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

16 Citations (Scopus)

Abstract

Nanoindentation has been used to study the hardness changes produced by scratching of aluminium alloy AA2024, with and without a clad layer of pure aluminium. The hardness was mapped around scratches made with diamond tools of different profiles. One tool produced significant plastic damage with associated hardening at the scratch root, whilst the other produced a ‘cleaner’cut with no hardening. The different behaviours are attributed to whether the tool makes the scratch by a ‘cutting’or a ‘ploughing’mechanism. The degree of plastic damage around the scratches has been correlated with peak broadening data obtained using synchrotron X-ray diffraction. There was no change observed in the local hardness around the scratch with fatigue loading.

Original language	English
Pages (from-to)	297-304
Number of pages	8
Journal	Materials Science and Engineering: A
Volume	527
Issue number	1-2
DOIs	https://doi.org/10.1016/j.msea.2009.07.035
Publication status	Published - 2009

Keywords

Nanoindentation
Synchrotron X-ray diffraction
Hardening
Scratches

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10.1016/j.msea.2009.07.035

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title = "Effect of tool profile and fatigue loading on the local hardness around scratches in clad and unclad aluminium alloy 2024",

abstract = "Nanoindentation has been used to study the hardness changes produced by scratching of aluminium alloy AA2024, with and without a clad layer of pure aluminium. The hardness was mapped around scratches made with diamond tools of different profiles. One tool produced significant plastic damage with associated hardening at the scratch root, whilst the other produced a {\textquoteleft}cleaner{\textquoteright}cut with no hardening. The different behaviours are attributed to whether the tool makes the scratch by a {\textquoteleft}cutting{\textquoteright}or a {\textquoteleft}ploughing{\textquoteright}mechanism. The degree of plastic damage around the scratches has been correlated with peak broadening data obtained using synchrotron X-ray diffraction. There was no change observed in the local hardness around the scratch with fatigue loading.",

keywords = "Nanoindentation, Synchrotron X-ray diffraction, Hardening, Scratches",

author = "Kashif Khan and Michael Fitzpatrick and Sarah Hainsworth and L. Edwards",

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language = "English",

volume = "527",

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T1 - Effect of tool profile and fatigue loading on the local hardness around scratches in clad and unclad aluminium alloy 2024

AU - Khan, Kashif

AU - Fitzpatrick, Michael

AU - Hainsworth, Sarah

AU - Edwards, L.

PY - 2009

Y1 - 2009

N2 - Nanoindentation has been used to study the hardness changes produced by scratching of aluminium alloy AA2024, with and without a clad layer of pure aluminium. The hardness was mapped around scratches made with diamond tools of different profiles. One tool produced significant plastic damage with associated hardening at the scratch root, whilst the other produced a ‘cleaner’cut with no hardening. The different behaviours are attributed to whether the tool makes the scratch by a ‘cutting’or a ‘ploughing’mechanism. The degree of plastic damage around the scratches has been correlated with peak broadening data obtained using synchrotron X-ray diffraction. There was no change observed in the local hardness around the scratch with fatigue loading.

AB - Nanoindentation has been used to study the hardness changes produced by scratching of aluminium alloy AA2024, with and without a clad layer of pure aluminium. The hardness was mapped around scratches made with diamond tools of different profiles. One tool produced significant plastic damage with associated hardening at the scratch root, whilst the other produced a ‘cleaner’cut with no hardening. The different behaviours are attributed to whether the tool makes the scratch by a ‘cutting’or a ‘ploughing’mechanism. The degree of plastic damage around the scratches has been correlated with peak broadening data obtained using synchrotron X-ray diffraction. There was no change observed in the local hardness around the scratch with fatigue loading.

KW - Nanoindentation

KW - Synchrotron X-ray diffraction

KW - Hardening

KW - Scratches

U2 - 10.1016/j.msea.2009.07.035

DO - 10.1016/j.msea.2009.07.035

M3 - Article

SN - 0921-5093

VL - 527

SP - 297

EP - 304

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

IS - 1-2

ER -

Effect of tool profile and fatigue loading on the local hardness around scratches in clad and unclad aluminium alloy 2024

Abstract

Keywords

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