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Laser Optics & Photonics and Atomic & Plasma Science 2018
J u l y 1 6 - 1 7 , 2 0 1 8
P r a g u e , C z e c h R e p u b l i c
Page 58
American Journal of Computer Science and Information Technology
ISSN: 2349-3917
E u r o S c i C o n J o i n t E v e n t o n
Laser Optics & Photonics and
Atomic & Plasma Science
This paper is presented an overview of the evaluation techniques of residual
stresses in wear protection coatings. The main experimental techniques
for measurement of residual stresses are briefly described, with particular
attention given to the methods of X-Ray diffraction, ultrasonic and finite element
techniques. Boundary conditions satisfied by all residual stresses distribution are
identified and expressions derived for the X-Ray diffraction, ultrasonic and stress
distributions arising from a uniformmisfit strain between wear protection coating
and substrate. It is noted that stress distribution in thick wear protection coatings
rarely correspond to the imposition of such a numerical method becomes essential
for quantitative prediction of residual stresses values and stress distributions.
Relationships are presented between residual stresses and corresponding
strain energy release rates during interfacial debonding. The effect on this of
superimposing stresses from an externally applied load is outlined. The initiation
of debonding is then considered, covering edge effects and other geometrical
consideration. Finally, some specific case histories are briefly outlined to illustrate
how the various theoretical and experimental concepts involved relate to industrial
practice and applications.
Biography
Adel K Mahmoud has completed his PhD from University of
Technology, Baghdad, Iraq and was awarded Professor Degree
in 2015 from University of Diyala. He is a Visiting Professor
currently in Ankara Yildirim Beyzit University, Ankara, Turkey. He
has published more than 30 papers in reputed journals and has
been serving as an Editorial Board Member of repute.
Evaluation of the residual stresses in wear protection
coatings using X-Ray diffraction, ultrasonic and finite
element technique
Adel K Mahmoud1, Zaid S Hammodi 2 and Samah R Hassan1
1University of Diyala, Iraq
2University of Technology, Iraq
Adel K Mahmoud et al., Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-002