Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6

The present study described the effect of shot peening on mechanical properties and rotating corrosion –fatigue behavior (strength and life) of AA6061-T6. Ultimate tensile strength (UTS) and yield stress (YS) were reduced by 4.6% and 1.24% when immersing the tensile samples in crude oil for 60 days....

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Main Authors: Hussain J.M. Al-Alkawi, Ghgada A. Aziz, Shmoos R. Mazel
Format: Article
Language:English
Published: Unviversity of Technology- Iraq 2021-03-01
Series:Engineering and Technology Journal
Subjects:
Online Access:https://etj.uotechnology.edu.iq/article_168121_6fda358f26f149b2827c398c398d332b.pdf
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author Hussain J.M. Al-Alkawi
Ghgada A. Aziz
Shmoos R. Mazel
author_facet Hussain J.M. Al-Alkawi
Ghgada A. Aziz
Shmoos R. Mazel
author_sort Hussain J.M. Al-Alkawi
collection DOAJ
description The present study described the effect of shot peening on mechanical properties and rotating corrosion –fatigue behavior (strength and life) of AA6061-T6. Ultimate tensile strength (UTS) and yield stress (YS) were reduced by 4.6% and 1.24% when immersing the tensile samples in crude oil for 60 days. The values of (UTS) and (YS) were raised from 307 to 316 MPa and from 248 to 254 MPa respectively when treated for 10 min. shot peening (SP). Hardness of oil corrosion samples dropped due to pitting corrosion and slightly raised for SP prior to corrosion samples. Oil corrosion reduced the fatigue strength by (-1.25%). This percentage was enhanced due to SP to 2.377%. SP significantly increased the rotating fatigue life by a factor of 1.19 and 1.3 at (UTS) and (Ys) loads respectively. (SP) technique improved corrosion-fatigue resistance due to producing compressive residual stresses at surface layers.
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spelling doaj.art-8aeff1ef41a94e56a43694390f6b721b2024-02-01T07:17:29ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582021-03-01393A40741410.30684/etj.v39i3A.298168121Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6Hussain J.M. Al-Alkawi0Ghgada A. Aziz1Shmoos R. Mazel2Electro-mechanical Eng. Dept., University of Technology, Baghdad, Iraq. Alalkawi2012@yahoo.comElectro-mechanical Eng. Dept., University of Technology, Baghdad, Iraq. ghadasama@yahoo.comElectro-mechanical Eng. Dept., University of Technology, Baghdad, Iraq. shmoos_rahem@yahoo.comThe present study described the effect of shot peening on mechanical properties and rotating corrosion –fatigue behavior (strength and life) of AA6061-T6. Ultimate tensile strength (UTS) and yield stress (YS) were reduced by 4.6% and 1.24% when immersing the tensile samples in crude oil for 60 days. The values of (UTS) and (YS) were raised from 307 to 316 MPa and from 248 to 254 MPa respectively when treated for 10 min. shot peening (SP). Hardness of oil corrosion samples dropped due to pitting corrosion and slightly raised for SP prior to corrosion samples. Oil corrosion reduced the fatigue strength by (-1.25%). This percentage was enhanced due to SP to 2.377%. SP significantly increased the rotating fatigue life by a factor of 1.19 and 1.3 at (UTS) and (Ys) loads respectively. (SP) technique improved corrosion-fatigue resistance due to producing compressive residual stresses at surface layers.https://etj.uotechnology.edu.iq/article_168121_6fda358f26f149b2827c398c398d332b.pdfaa6061-t6mechanical propertieshardnessfatigueoil corrosionshot peening
spellingShingle Hussain J.M. Al-Alkawi
Ghgada A. Aziz
Shmoos R. Mazel
Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
Engineering and Technology Journal
aa6061-t6
mechanical properties
hardness
fatigue
oil corrosion
shot peening
title Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
title_full Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
title_fullStr Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
title_full_unstemmed Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
title_short Effect of Oil – Corrosion on Tensile and Fatigue S-N Curve Properties of AA6061-T6
title_sort effect of oil corrosion on tensile and fatigue s n curve properties of aa6061 t6
topic aa6061-t6
mechanical properties
hardness
fatigue
oil corrosion
shot peening
url https://etj.uotechnology.edu.iq/article_168121_6fda358f26f149b2827c398c398d332b.pdf
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AT ghgadaaaziz effectofoilcorrosionontensileandfatiguesncurvepropertiesofaa6061t6
AT shmoosrmazel effectofoilcorrosionontensileandfatiguesncurvepropertiesofaa6061t6