Development the Mechanical Properties of (AL-Li-Cu) Alloy

The aim of this research is to develop mechanical properties of a new aluminium-lithium-copper alloy. This alloy prepared under control atmosphere by casting in a permanent metal mould. The microstructure was examined and mechanical properties were tested before and after heat treatment to study the...

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Main Authors: Ihsan Kadhom AlNaimi, Dr, Awatif Mustafa Ali, Instructor
Format: Article
Language:English
Published: University of Baghdad 2017-11-01
Series:Journal of Engineering
Subjects:
Online Access:http://joe.uobaghdad.edu.iq/index.php/main/article/view/361
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author Ihsan Kadhom AlNaimi, Dr
Awatif Mustafa Ali, Instructor
author_facet Ihsan Kadhom AlNaimi, Dr
Awatif Mustafa Ali, Instructor
author_sort Ihsan Kadhom AlNaimi, Dr
collection DOAJ
description The aim of this research is to develop mechanical properties of a new aluminium-lithium-copper alloy. This alloy prepared under control atmosphere by casting in a permanent metal mould. The microstructure was examined and mechanical properties were tested before and after heat treatment to study the influence of heat treatment on its mechanical properties including; modulus of elasticity, tensile strength, impact, and fatigue. The results showed that the modulus of elasticity of the prepared alloy is higher than standard alloy about 2%. While the alloy that heat treated for 6 h and cooled in water, then showed a higher ultimate tensile stress comparing with as-cast alloy. The homogenous heat treatment gives best fatigue behaviour comparing with as-cast and other heat treatment alloys. Also, the impact test illustrates that the homogeneous heat treatment alloy gives the highest value.
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spelling doaj.art-f584c6986d98421e91aa73f1c75c2ffe2023-09-03T00:07:00ZengUniversity of BaghdadJournal of Engineering1726-40732520-33392017-11-012311Development the Mechanical Properties of (AL-Li-Cu) AlloyIhsan Kadhom AlNaimi, Dr0Awatif Mustafa Ali, Instructor1Vocational Education - Ministry of Educationcollege of Engineering - Al-Mustansiriyah UniversityThe aim of this research is to develop mechanical properties of a new aluminium-lithium-copper alloy. This alloy prepared under control atmosphere by casting in a permanent metal mould. The microstructure was examined and mechanical properties were tested before and after heat treatment to study the influence of heat treatment on its mechanical properties including; modulus of elasticity, tensile strength, impact, and fatigue. The results showed that the modulus of elasticity of the prepared alloy is higher than standard alloy about 2%. While the alloy that heat treated for 6 h and cooled in water, then showed a higher ultimate tensile stress comparing with as-cast alloy. The homogenous heat treatment gives best fatigue behaviour comparing with as-cast and other heat treatment alloys. Also, the impact test illustrates that the homogeneous heat treatment alloy gives the highest value.http://joe.uobaghdad.edu.iq/index.php/main/article/view/361aluminium-lithium alloys, heat treatment, microstructure, mechanical properties
spellingShingle Ihsan Kadhom AlNaimi, Dr
Awatif Mustafa Ali, Instructor
Development the Mechanical Properties of (AL-Li-Cu) Alloy
Journal of Engineering
aluminium-lithium alloys, heat treatment, microstructure, mechanical properties
title Development the Mechanical Properties of (AL-Li-Cu) Alloy
title_full Development the Mechanical Properties of (AL-Li-Cu) Alloy
title_fullStr Development the Mechanical Properties of (AL-Li-Cu) Alloy
title_full_unstemmed Development the Mechanical Properties of (AL-Li-Cu) Alloy
title_short Development the Mechanical Properties of (AL-Li-Cu) Alloy
title_sort development the mechanical properties of al li cu alloy
topic aluminium-lithium alloys, heat treatment, microstructure, mechanical properties
url http://joe.uobaghdad.edu.iq/index.php/main/article/view/361
work_keys_str_mv AT ihsankadhomalnaimidr developmentthemechanicalpropertiesofallicualloy
AT awatifmustafaaliinstructor developmentthemechanicalpropertiesofallicualloy