Surface treatment of aluminum alloys using Nd : YAG laser
Dissertant
Thesis advisor
University
University of Technology
Faculty
-
Department
Department of Laser Engineering and Electronic Optics
University Country
Iraq
Degree
Master
Degree Date
2010
English Abstract
In this research, a pulsed Nd : YAG laser with wavelength (1064nm) and (532 nm) and pulse duration (100 ns) for different energies [250 mJ,500 mJ,750 mJ,1000 mJ.] and spot size (105 mm) was used.
The alloys used were [Al-Cu-Si], [Al-Si-Mg] and [AL-Zn-Mg].The essential aim for this work includes study the effect of laser parameters on wrought aluminum alloys.
In laser surface engineering the mirohardness and wear tests will be studied after laser treatment.
The effect of laser parameters includes : .
1- The effect of the pulsed Nd : YAG laser energy ).
2- The effect of the number of shots (pulse 3- The effect of the wavelength (532 nm).
The results reveal : * With increasing laser energy, the value of the mirohardness of [Al-Si-Mg] alloy will increase * while the values of mirohardness of [Al-Cu-Si] alloy and [AL-Zn-Mg] alloy will decrease.
* The value of the mirohardness will decrease as moving away from the center of the strike for [Al-Si-Mg] alloy, and the value of mirohardness will increase by moving away from the center of the strike for [Al-Cu-Si] and [AL-Zn-Mg] alloys.
* In the [Al-Cu-Si] and [AL-Zn-Mg] alloys, it is noted that the amount of loss in weight is greater than the loss of weight with the base metal, as for the [Al-Si-Mg], the results showed that the amount of loss is less than the amount of loss in the alloy before the treatment.
* The treatment by laser leads to decrease the wear rate for [Al-Si-Mg] alloy and the treatment by laser leads to increase the wear rate for [Al-Cu-Si] and [AL-Zn-Mg] alloys.
Main Subjects
Topics
American Psychological Association (APA)
Ismaili, Majid Hammad. (2010). Surface treatment of aluminum alloys using Nd : YAG laser. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305040
Modern Language Association (MLA)
Ismaili, Majid Hammad. Surface treatment of aluminum alloys using Nd : YAG laser. (Master's theses Theses and Dissertations Master). University of Technology. (2010).
https://search.emarefa.net/detail/BIM-305040
American Medical Association (AMA)
Ismaili, Majid Hammad. (2010). Surface treatment of aluminum alloys using Nd : YAG laser. (Master's theses Theses and Dissertations Master). University of Technology, Iraq
https://search.emarefa.net/detail/BIM-305040
Language
English
Data Type
Arab Theses
Record ID
BIM-305040
