Characterisation and modelling of static recovery process of Aluminium-copper alloy

The main objective of this project is to determine the activation energy of aluminium-copper alloy using interrupted of tensile test procedure. The interrupted process was conduct at recovery stage, which is to investigate effect of recovery due to influence of pre-strain. The process of recovery is...

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Main Author:	Mohd Hosni, Ismail
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2008
Subjects:	TN Mining engineering. Metallurgy
Online Access:	http://umpir.ump.edu.my/id/eprint/21959/ http://umpir.ump.edu.my/id/eprint/21959/ http://umpir.ump.edu.my/id/eprint/21959/1/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/21959/2/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/21959/3/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/21959/4/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20References.pdf

id	ump-21959
recordtype	eprints
spelling	ump-219592018-09-18T06:57:50Z http://umpir.ump.edu.my/id/eprint/21959/ Characterisation and modelling of static recovery process of Aluminium-copper alloy Mohd Hosni, Ismail TN Mining engineering. Metallurgy The main objective of this project is to determine the activation energy of aluminium-copper alloy using interrupted of tensile test procedure. The interrupted process was conduct at recovery stage, which is to investigate effect of recovery due to influence of pre-strain. The process of recovery is to relieve the internal residual stresses during cold work. The specimens were tested at variable pre strain (2.5%, 5%, 7.5%, 10%.), temperature (100 °C, 150 °C, 200 °C and 250 °C) and at different annealing time (1 hour, 2 hour, 3 hour and 4 hour). The specimens were machining using lathe machine from larger stock before go to the annealing process. The process of annealing was carried out using box furnace by holding the specimens at an elevated temperature. After the annealing process, the specimens were tested using tensile test machine. This process is required to find the value of yield stress of undeformed material, deformed and at static recovery condition. The value of yield stress depends on the condition of the annealing process. From the data of yield stress, the graph of the Xrec (degree of recovery) versus pre-strain, temperature and time can be plot. By using linear line equation of the graph, the activation energy can be calculate by implement the equation of Friedel's model. The value of activation energy depends on the value of the temperature and time that has been used. From the experiment, the value of activation energy at variable temperature is 630 kJ/mol and for the variable time is 211 kJ/mol. From the data of the research it can be use to validate the equation of Friedel's model by make a comparison between the value of activation energy with the data from the journal. 2008-11 Undergraduates Project Papers NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/21959/1/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Table%20of%20contents.pdf pdf en http://umpir.ump.edu.my/id/eprint/21959/2/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Abstract.pdf pdf en http://umpir.ump.edu.my/id/eprint/21959/3/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Chapter%201.pdf pdf en http://umpir.ump.edu.my/id/eprint/21959/4/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20References.pdf Mohd Hosni, Ismail (2008) Characterisation and modelling of static recovery process of Aluminium-copper alloy. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:40187&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	TN Mining engineering. Metallurgy
spellingShingle	TN Mining engineering. Metallurgy Mohd Hosni, Ismail Characterisation and modelling of static recovery process of Aluminium-copper alloy
description	The main objective of this project is to determine the activation energy of aluminium-copper alloy using interrupted of tensile test procedure. The interrupted process was conduct at recovery stage, which is to investigate effect of recovery due to influence of pre-strain. The process of recovery is to relieve the internal residual stresses during cold work. The specimens were tested at variable pre strain (2.5%, 5%, 7.5%, 10%.), temperature (100 °C, 150 °C, 200 °C and 250 °C) and at different annealing time (1 hour, 2 hour, 3 hour and 4 hour). The specimens were machining using lathe machine from larger stock before go to the annealing process. The process of annealing was carried out using box furnace by holding the specimens at an elevated temperature. After the annealing process, the specimens were tested using tensile test machine. This process is required to find the value of yield stress of undeformed material, deformed and at static recovery condition. The value of yield stress depends on the condition of the annealing process. From the data of yield stress, the graph of the Xrec (degree of recovery) versus pre-strain, temperature and time can be plot. By using linear line equation of the graph, the activation energy can be calculate by implement the equation of Friedel's model. The value of activation energy depends on the value of the temperature and time that has been used. From the experiment, the value of activation energy at variable temperature is 630 kJ/mol and for the variable time is 211 kJ/mol. From the data of the research it can be use to validate the equation of Friedel's model by make a comparison between the value of activation energy with the data from the journal.
format	Undergraduates Project Papers
author	Mohd Hosni, Ismail
author_facet	Mohd Hosni, Ismail
author_sort	Mohd Hosni, Ismail
title	Characterisation and modelling of static recovery process of Aluminium-copper alloy
title_short	Characterisation and modelling of static recovery process of Aluminium-copper alloy
title_full	Characterisation and modelling of static recovery process of Aluminium-copper alloy
title_fullStr	Characterisation and modelling of static recovery process of Aluminium-copper alloy
title_full_unstemmed	Characterisation and modelling of static recovery process of Aluminium-copper alloy
title_sort	characterisation and modelling of static recovery process of aluminium-copper alloy
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/21959/ http://umpir.ump.edu.my/id/eprint/21959/ http://umpir.ump.edu.my/id/eprint/21959/1/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Table%20of%20contents.pdf http://umpir.ump.edu.my/id/eprint/21959/2/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Abstract.pdf http://umpir.ump.edu.my/id/eprint/21959/3/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20Chapter%201.pdf http://umpir.ump.edu.my/id/eprint/21959/4/Characterisation%20and%20modelling%20of%20static%20recovery%20process%20of%20Aluminium-copper%20alloy%20-%20References.pdf
first_indexed	2023-09-18T22:32:27Z
last_indexed	2023-09-18T22:32:27Z
_version_	1777416375886675968

Characterisation and modelling of static recovery process of Aluminium-copper alloy

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