Vacancies at Chalmers University of Technology

12/30/2015

Vacancies at Chalmers University of Technology


PhD student position on High Entropy Alloys  Mail a friend

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The department of Materials and Manufacturing Technology consists of six research groups. The research activities span from basic research on nanostructural materials to product and process related issues within materials and manufacturing technology. The research is carried out in close collaboration with national and international industries and universities. Our graduate as well as undergraduate education is organized in a wide range of courses, we are involved in four masters’ programmes and three graduate schools. Information about the research group The research group "High Entropy Alloys" led by Dr. Sheng Guo, Assistant Professor at the Department of Materials and Manufacturing Technology has a focus on the alloy design and mechanical behavior of high entropy alloys (HEAs), or multiprincipalelement alloys. Our target is to develop HEAs as new generation of structural materials for hightemperature applications. We are currently also working on applying HEAs as functional materials, such as hightemperature thermoelectric materials. In the meantime, we are quite keen on the concept of using HEAs as alternative binder materials in hard metals, and also as novel coating materials. We have extensive research collaborations with other national and international universities and also with industries. Job description The job is devoted to studying the alloy development and mechanical property of highentropy alloys. High entropy alloys (HEAs), or multicomponent alloys with equiatomic or closetoequiatomic compositions, emerge as novel metallic materials with great potential to be used as high temperature materials, or coating materials requiring high hardness and high wear resistance. Although being highly concentrated multi component alloy systems, simple solid solutions tend to form in HEAs, with the absence of intermetallic compounds. This seemingly unexpected phenomenon is partly due to the significant entropic contribution, which lowers the Gibbs energy of the solid solution phases at elevated temperatures. Normally, the formed solid solutions in HEAs are of fcc and/or bcc structures. The mechanical behaviour of HEAs are greatly affected by the phase constitutions in that generally fcctyped HEAs are ductile but soft, while the bcctyped HEAs are hard but brittle. How to simultaneously achieve both high strength and high tensile ductility in HEAs is a great challenge in the field, and this constitutes the target of this job. The job mainly involves alloy development and thermomechanical treatments, to tune the phase constitution and the microstructure, aiming at obtaining novel HEAs with balanced strength and tensile ductility. Mechanical testing, at both room temperature and elevated temperatures, will be carried out to examine the mechanical properties of the developed materials. In the meantime, alloying strategies for HEAs and their deformation mechanisms at both room temperature and elevated temperatures, will be systematically studied to gain an indepth understanding for this relatively new material. Major responsibilities The majority of the working time will be devoted to research within the project and the courses. You are expected to develop your own scientific concepts and communicate the results of your research verbally and in writing. You have the obligation in teaching assistance (15%). Position summary Fulltime temporary employment. The position is limited to a maximum of 4.5 years full time PhD study. Qualifications To qualify as a PhD student, you must have a master degree awarded by an internationally recognized university, in materials science, metallurgy, mechanical engineering, physics or relevant subjects. proven research experience a good knowledge on alloy preparation, microstructural characterization and

http://www.chalmers.se/en/aboutchalmers/vacancies/Pages/default.aspx

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proven research experience a good knowledge on alloy preparation, microstructural characterization and mechanical testing of metallic materials. excellent English skills, both verbal and written. To be successful during your PhD, beyond demanded education and research experience, you need to be hard working, highly motivated, creative, ambitious to excel in research, and able to work on your own and also collaborate with other group members and our research collaborators. Chalmers continuously strives to be an attractive employer. Equality and diversity are substantial foundations in all activities at Chalmers. Application procedure The application should be marked with Ref 20150482 and written in English. The application should be sent electronically and be attached as pdffiles, as below: 1. Application: (Please name the document: APPLICATION, Family name, reference number) − CV − Other, for example previous employments or leadership qualifications and positions of trust. − Two references that we can contact. 2. Personal letter/Qualifications: (Please name the document as: QUALIFICATIONS, family name, ref. number) 13 pages where you introduce yourself present your qualifications and describe your future research plans. − Previous research fields and main research results. − Future goals and research focus. Are there any specific projects and research issues you are primarily interested in? 3. Other: − Copies of bachelor and/or master’s thesis. − Attested copies and transcripts of completed education, grades and other certificates, eg. TOEFL test results. Please use the button at the foot of the page to reach the application form. The files may be compressed (zipped). Application deadline: 26 February 2016 For questions, please contact: Assistant Professor Dr. Sheng Guo Materials and Manufacturing Technology Email: [email protected] Phone: +46 (0)31 772 1254

*** Chalmers declines to consider all offers of further announcement publishing or other types of support for the recruiting process in connection with this position. ***

Chalmers University of Technology conducts research and education in engineering sciences, architecture, technologyrelated mathematical sciences, natural and nautical sciences, working in close collaboration with industry and society. The strategy for scientific excellence focuses on our eight Areas of Advance; Built Environment, Energy, Information & Communication Technology, Life Science, Materials Science, Nanoscience & Nanotechnology, Production and Transport. The aim is to make an active contribution to a sustainable future using the basic sciences as a foundation and innovation and entrepreneurship as the central driving forces. Chalmers has around 11,000 students and 3,000 employees. New knowledge and improved technology have characterised Chalmers since its foundation in 1829, completely in accordance with the will of William Chalmers and his motto: Avancez!

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