FACULTY OF ENGINEERINGDEPARTMENT OF METALLURGICAL AND MATERIALS ENGINEERING


Mert Efe

Assist. Prof. Dr. Mert Efe
Room No: 
D104
Telephone: 
+90 (312) 210-5925
Fax: 
+90 (312) 210-2518
E-mail: 
mefe@metu.edu.tr
Education: 

Ph.D.: 2012 – Purdue University, West Lafayette, IN, USA

M.S.: 2008 – Purdue University, West Lafayette, IN, USA

B.S.: 2005 – Middle East Technical University, Turkey

Research Interests: 
  • Experimental Solid Mechanics and Deformation Processing (Lightweight Alloys, Refractory Metals)
  • Irradiation Effects on Metals (Tungsten)
  • Powder Metallurgy (Refractory Metals: Tungsten, Tantalum)
  • Material Processing & Manufacturing Economics
Publications: 
  • Sagapuram D., Efe M., Trumble K. P., Chandrasekar S., " Flow transitions and flow localization in large-strain deformation of magnesium alloy", Materials Science and Engineering A, 659, 295-305, 2016
  • Seymen Y., Guler B., Efe M., " Large Strain and Small-Scale Biaxial Testing of Sheet Metals", Experimental Mechanics, 1-12, 2016
  • El-Atwani O., Gonderman S., Suslov S., Efe M., De Temmerman G., Morgan T., Bystrov K., Hattar K., Allain J.P., " Early stage damage of ultrafine grained tungsten materials exposed to low energy helium ion irradiation", Fusion Engineering and Design, 93, 9-14, 2015
  • El-Atwani O., Gonderman S., Efe M., De Temmerman, G., Morgan T., Bystrov K., Klenosky D., Qiu T., Allain J. P., "Ultrafine tungsten as a plasma-facing component in fusion devices: effect of high flux, high fluence low energy helium irradiation", Nuclear Fusion, 54 (8), 2014
  • El-Atwani O., Suslova A., Novakowski T. J., Hattar K., Efe M., Harilal S. S., Hassanein A., " In-situ TEM/heavy ion irradiation on ultrafine and nanocrystalline grained tungsten: Effect of 3 MeV Si, Cu and W ions", 99, 68-76, 2015
  • El-Atwani O., Hinks J. A., Greaves G., Gonderman S., Qiu T., Efe M., Allain J. P., " In situ TEM observation of the response of ultrafine and nanocrystalline grained tungsten to extreme irradiation environments", Scientific Reports, 4 (4716), 2014 
  • Sagapuram D., Efe M, Trumble K. P., Chandrasekar S., " Enabling shear textures and fine-grained structures in magnesium sheet by machining-based deformation processing", IOP Conference Series: Materials Science and Engineering, 63, 012155, 2014
  • M. Efe, O. El-Atwani, Y. Guo, D.R. Klenosky, “Microstructure Refinement of Tungsten by Surface Deformation for Irradiation Damage Resistance,” Scripta Materialia, 70, 2014, p31-34.
  • D. Sagapuram, M. Efe, W. Moscoso, K.P. Trumble, S. Chandrasekar, “Controlling Texture in Magnesium Alloy Sheet by Shear-based Deformation Processing,” Acta Materialia, 61, 2013, p6843-6856.
  • O. El-Atwani, M. Efe, B. Heim, J.P. Allain, “Surface damage in ultrafine and multimodal grained tungsten materials induced by low energy helium irradiation,” Journal of Nuclear Materials, 434, 2013, p170-177.
  • M. Efe, HJ. Kim, S. Chandrasekar, K.P. Trumble, “The chemical state and control of oxygen in powder metallurgy tantalum,” Material Science and Engineering A, 544, 2012, p1-9.
  • M. Efe, W. Moscoso, K.P. Trumble, W.D. Compton, S. Chandrasekar, “Mechanics of Large Strain Extrusion Machining and Application to Deformation Processing of Magnesium Alloys,” Acta Materialia, 60, 2012, p2031-2042.
  • Y. Guo, M. Efe, W. Moscoso, D. Sagapuram, K. P. Trumble and S. Chandrasekar, “Deformation field in large strain extrusion machining and implications for deformation processing”, Scripta Materialia, 66-5, 2012, p235-238.
  • D. Sagapuram, M. Efe, W. Moscoso, S. Chandrasekar, K.P. Trumble. "Non‐Basal Textures in Magnesium Alloy Strips by Extrusion‐Machining." Magnesium Technology 2012, p121-125
  • O. El-Atwani, D.V. Quach, M. Efe, P.R. Cantwell, B. Heim, B. Schultz, E.A. Stach, J.R. Groza, J.P. Allain, “Multimodal grain size distribution and high hardness in fine grained tungsten fabricated by spark plasma sintering,” Materials Science and Engineering: A, 528, 2011, p5670-5677.
  • D. Sagapuram, M. Efe, W. Moscoso, S. Chandrasekar, K.P. Trumble, “Deformation Temperature Effects on Microstructure and Texture Evolution in High Strain Rate Extrusion-Machining of Mg-AZ31B,” Material Science Forum, Vol. 702-703, 2011, p52.
  • M. Efe, H.J. Kim, S. Chandrasekar, K.P. Trumble, “Hot-Pressing of Ultrafine Grained Tantalum Powders Produced from Machining Chips”, in: Proceedings of the 2009 International Conference on Powder Metallurgy & Particulate Materials, MPIF, Princeton, NJ, p8-87:8-96.