a.dorbane's blog
https://imechanica.org/blog/57410
enPostdoctoral Research Association Position
https://imechanica.org/node/22613
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/800">mechanical engineering</a></div><div class="field-item odd"><a href="/taxonomy/term/7396">tensile testing</a></div><div class="field-item even"><a href="/taxonomy/term/755">heat treatment</a></div><div class="field-item odd"><a href="/taxonomy/term/12180">metallic alloys</a></div><div class="field-item even"><a href="/taxonomy/term/12181">mechanical manufacturing</a></div><div class="field-item odd"><a href="/taxonomy/term/2777">SEM</a></div><div class="field-item even"><a href="/taxonomy/term/4831">om</a></div><div class="field-item odd"><a href="/taxonomy/term/12182">Fractography analysis</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>Dear all,</p>
<p>With regard to the possibility of having a researcher position at your mechanical or materials science department. I herewith kindly present my request for a possible investment on me as Postdoc or a similar position at your department. I have accomplished my Ph.D. in Materials Science and Engineering in 2016. My research and experience in the field of materials science between 2013 and 2017 accumulated sufficient knowledge and expertise to consider this chance to offer my collaboration to your research team’s evolution as well as an opportunity to expand my own academic career.</p>
<p>In my recent position as a Postdoctoral Fellow at Texas A&M University at Qatar, I worked cooperatively and individually on microstructure and mechanical property characterization of novel lightweight metal alloys, conducted numerous laboratory experiments, and have been presenting my research work in the form of journal and conference papers. Publications, professional presentations, and references attached. Simultaneously, I taught and supervised several graduate and undergraduate students and supported them in their research projects.</p>
<p>I have Excellent reading comprehension, verbal, and writing skills. I also possess exceptional reasoning skills and the ability to make hard decisions when needed. I can make and keep accurate documents of all research conducted, and tests result. I have the aptitude to work under pressure while staying focused to meet short deadlines while ensuring quality work at all times. I am comfortable working as a team member as well as being able to work on sections of a project independently. I believe that I am an excellent match for this position, and I hope to meet with you soon to talk about the job details in person.</p>
<p>I am looking forward to hearing from you soon,</p>
<p>Kind regards</p>
<p>Abdelhakim Dorbane.</p>
<p> </p>
<p>Email: <a href="mailto:abdelhakim.dorbane@ed.univ-lille1.fr">abdelhakim.dorbane@ed.univ-lille1.fr</a></p>
<p> <a href="mailto:a.dorbane@gmail.com">a.dorbane@gmail.com</a></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/CV_AD_V8.pdf" type="application/pdf; length=360080" title="CV_AD_V8.pdf">Abdelhakim Dorbane CV</a></span></td><td>351.64 KB</td> </tr>
</tbody>
</table>
</div></div></div>Thu, 30 Aug 2018 17:18:16 +0000a.dorbane22613 at https://imechanica.orghttps://imechanica.org/node/22613#commentshttps://imechanica.org/crss/node/22613Postdoctoral research associate, Research associate or a job in a company
https://imechanica.org/node/20291
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/73">job</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/11068">Friction stir welding</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span><strong>My name is Abdelhakim Dorbane, I am looking for a Postdoctoral research associate, Research associate or a company job in mechanical or materials science and engineering fields. </strong></span></p>
<p>I did an extensive work on Friction Stir welding and materials characterization, and I have published about four journal papers and some international conference papers. Please visite my researchgate profile <a href="https://www.researchgate.net/profile/Abdelhakim_Dorbane">https://www.researchgate.net/profile/Abdelhakim_Dorbane</a> or LinkedIn profile <a href="https://www.linkedin.com/in/abdelhakimdorbane">https://www.linkedin.com/in/abdelhakimdorbane</a> for more information.</p>
<p>I am a very motivated person and I can adapt to the new working environments and new fields of research.</p>
<p> </p>
<p>I am looking forward to hearing from you,</p>
<p>Email: <a href="mailto:abdelhakim.dorbane@ed.univ-lille1.fr">abdelhakim.dorbane@ed.univ-lille1.fr</a></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/CV_A_Dorbane.pdf" type="application/pdf; length=267692">CV_A_Dorbane.pdf</a></span></td><td>261.42 KB</td> </tr>
</tbody>
</table>
</div></div></div>Sun, 11 Sep 2016 22:57:22 +0000a.dorbane20291 at https://imechanica.orghttps://imechanica.org/node/20291#commentshttps://imechanica.org/crss/node/20291Mechanical, microstructural and fracture properties of dissimilar welds produced by friction stir welding of AZ31B and Al6061
https://imechanica.org/node/19704
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/11068">Friction stir welding</a></div><div class="field-item odd"><a href="/taxonomy/term/11072">Dissimilar metal joining</a></div><div class="field-item even"><a href="/taxonomy/term/11073">Tensile properties</a></div><div class="field-item odd"><a href="/taxonomy/term/11074">High-temperature properties</a></div><div class="field-item even"><a href="/taxonomy/term/1048">microstructure</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>Friction stir welding (FSW) has been used for joining AZ31B magnesium alloy and Al 6061-T6 aluminum alloy sheets. In this regard, the current work aims to study the mechanical, microstructural and fracture properties of dissimilar FSW welds obtained by evolving the tool rotation and translation speeds. The dissimilar welds microstructure and mechanical properties are evaluated and correlated with the FSW parameters to obtain the optimum weld conditions. The results showed that placing aluminum on the advancing side of the weld resulted in better quality welds. The evaluation of the microhardness along the joint section showed values evolving between the microhardness values of the base metals (Al and Mg). A discontinuity in the microhardness values, attributed to the intermetallic compounds (IMC) present, was observed at the weld interface between Mg and Al sheets. The room temperature tensile testing of the weld showed weld joint efficiency between 18% and 55% and at higher temperatures (200 °C) joint efficiency was observed to be between 58% and 78%. The specimen showed brittle behavior under tensile testing, and the specimen fracture occurred along the weld joint. The specimen fracture seems to have initiated in the brittle Mg</span>2<span>Al</span>3<span> and Mg</span>17<span>Al</span>12<span> IMCs formed between the welded sheets.</span></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/1-s2.0-S0921509315306080-main.pdf" type="application/pdf; length=5827408">1-s2.0-S0921509315306080-main.pdf</a></span></td><td>5.56 MB</td> </tr>
</tbody>
</table>
</div></div></div>Fri, 08 Apr 2016 13:01:06 +0000a.dorbane19704 at https://imechanica.orghttps://imechanica.org/node/19704#commentshttps://imechanica.org/crss/node/19704Microstructural observations and tensile fracture behavior of FSW twin roll cast AZ31 Mg sheets
https://imechanica.org/node/19703
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/11068">Friction stir welding</a></div><div class="field-item odd"><a href="/taxonomy/term/5891">Microstructure characterization</a></div><div class="field-item even"><a href="/taxonomy/term/11069">Mechanical response</a></div><div class="field-item odd"><a href="/taxonomy/term/11070">Micro-hardness</a></div><div class="field-item even"><a href="/taxonomy/term/11071">Texture; Failure</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>Defect-free joints were friction stir welded (FSW) from AZ31 Mg alloy sheets by employing optimum welding parameters for the tool geometry used. Microstructure, texture and mechanical response of the welded joints were studied to identify susceptibility of crack initiation in the different weld zones and to understand the overall fracture behavior of these welds. Uniaxial tensile testing conducted orthogonal to the welding direction at temperatures of 25, 100, 200, and 300 °C revealed that cracks initiated mainly on the tool’s advancing side (AS) of the weld between thermo-mechanically affected zone (TMAZ) and stir zone (SZ). Such cracks were found to propagate preferentially along this interfacial region leading to complete fracture. This finding may be linked to the inhomogeneous plastic deformation in the weld resulting in strong texture and microhardness gradients at the interface region between the TMAZ (AS) and the SZ. On the other hand, in tensile samples machined along the welding direction and containing stir zone microstructure, second phase particles were identified as the preferred sites for cracks initiation.</span></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/1-s2.0-S0921509315304354-main.pdf" type="application/pdf; length=5396777">1-s2.0-S0921509315304354-main.pdf</a></span></td><td>5.15 MB</td> </tr>
</tbody>
</table>
</div></div></div>Fri, 08 Apr 2016 12:59:55 +0000a.dorbane19703 at https://imechanica.orghttps://imechanica.org/node/19703#commentshttps://imechanica.org/crss/node/19703Observations of the mechanical response and evolution of damage of AA 6061-T6 under different strain rates and temperatures
https://imechanica.org/node/19702
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/11062">AA 6061-T6</a></div><div class="field-item odd"><a href="/taxonomy/term/11063">Strain rate effect</a></div><div class="field-item even"><a href="/taxonomy/term/11064">Temperature effect</a></div><div class="field-item odd"><a href="/taxonomy/term/11065">Deformation mechanisms</a></div><div class="field-item even"><a href="/taxonomy/term/11066">Damage mechanisms</a></div><div class="field-item odd"><a href="/taxonomy/term/11067">Failure mechanisms</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p><span>Investigated in this paper is the mechanical and microstructural response of specimens cut from rolled AA 6061-T6 alloy subjected to uniaxial loading at different temperatures (25, 100, 200, and 300 °C) and strain rates (10</span>–4<span>, 10</span>−3<span>, 10</span>−2<span>, 10</span>−1<span> s</span>−1<span>). It was found that the material exhibits a strain rate and temperature dependent behavior. Microstructure observations reveal grains elongated in the loading direction with the average grain size being independent of loading conditions. However, it was observed that loading conditions influence the distribution and shape of the intermetallic phase particles. Micro cracks are observed to occur and are linked to observed damage and, consequently, decrease of ductility. Investigating the root cause of this damage mechanism reveals that particles of intermetallic phase composition are the likely sites of crack initiation. The crack-initiation mechanism at temperatures less than 200 °C is identified as crack initiation emanating from these particles while at temperatures of about 300 °C the mechanism is identified as interfacial decohesion.</span></p>
</div></div></div><div class="field field-name-upload field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><table class="sticky-enabled">
<thead><tr><th>Attachment</th><th>Size</th> </tr></thead>
<tbody>
<tr class="odd"><td><span class="file"><img class="file-icon" alt="PDF icon" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://imechanica.org/files/1-s2.0-S0921509314014531-main.pdf" type="application/pdf; length=6231967">1-s2.0-S0921509314014531-main.pdf</a></span></td><td>5.94 MB</td> </tr>
</tbody>
</table>
</div></div></div>Fri, 08 Apr 2016 12:58:13 +0000a.dorbane19702 at https://imechanica.orghttps://imechanica.org/node/19702#commentshttps://imechanica.org/crss/node/19702Error | iMechanica