دکتر حمیدرضا کوه دار
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دکتر حمیدرضا کوه دار رتبه علمی: استادیار محل تحصیل: ایران، دانشگاه تهران آخرین مدرک تحصیلی: دکترا - مهندسی متالورژی و مواد سال اخذ مدرک تحصیلی: 1394 هجری شمسی تلفن تماس: 73228865 دورنگار: 77240480 پست الکترونیکی: hkoohdar iust.ac.ir
google scholar: Hamidreza Koohdar |
زمینه های تدریس:
متالورژی فیزیکی، متالوگرافی، استاتیک، تغییر حالتهای متالورژیکی
زمینه تحقیقاتی مورد علاقه:
خواص فیزیکی مواد، استحاله های فازی در فلزات و آلیاژها، آلیاژهای حافظه دار، مواد پیشرفته و نانوساختار، ارتباط ریزساختار و خواص مکانیکی مواد
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مقالات چاپ شده در مجلات علمی – لاتین |
| S.M. Masoudpanah , H.R. Koohdar, H.R. Jafarian, A.R. Eivani, "the effects of cold rolling and aging conditions on the microstructure and magnetic properties of a semi-hard Fe-Mo-Ni magnetic alloy", Journal of Materials Resarch and Technology, 12, 2021, 521-529. |
| H.R. Koohdar, P. Hakimipour, H.R. Jafarian, T.G. Langdon, M. Nili-Ahmadabadi, " Engineering mechanical properties by controlling the microstructure of an Fe–Ni–Mn martensitic steel through pre-cold rolling and subsequent heat treatment", Materials Science and Engineering A, 804, 2021,140760. |
| H.R. Koohdar, M. Nili-Ahmadabadi, F.J. Kalahroudi, H.R. Jafarian, T.G. Langdon, "The effect of high-pressure torsion on the microstructure and outstanding pseudoelasticity of a ternary Fe-Ni-Mn shape memory alloy", Materials Science and Engineering: A, 802, 2021,140647. |
| F.J. Kalahroudi, H.R. Koohdar, T.G. Langdon, M. Nili-Ahmadabadi, "Phase evolution and mechanical properties of an intercritically-annealed Fe–10Ni–7Mn (wt.%) martensitic steel severely deformed by high-pressure torsion", Materials Science and Engineering: A, 804, 2021, 140519. |
| Javadzadeh Kalahroudi, F., Koohdar, H., Jafarian, H.R., (...), Langdon, T.G., Nili-Ahmadabadi, M., "Corrigendum to “On the microstructure and mechanical properties of an Fe-10Ni-7Mn martensitic steel processed by high-pressure torsion” (Materials Science & Engineering A (2019) 749 (27–34), (S0921509319301637), (10.1016/j.msea.2019.02.002))", Materials Science and Engineering A767,138213, 2019 |
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F. Javadzadeh Kalahroudi, H. R. Koohdar, H. R. Jafarian, Y. Haung, T. G. Langdon, M. Nili-Ahmadabadi, “On the microstructure and mechanical properties of an Fe-10Ni-7Mn martensitic steel processed by high-pressure torsion”, Materials Science and Engineering A, 749 (2019) 27-34. |
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H. R. Koohdar, M. Nili -Ahmadabadi, M. Habibi-Parsa, H. R. Jafarian, T. Bhattacharjee, N. Tsuji “On the Stability of Reversely Formed Austenite and Related Mechanism of Transformation in an Fe-Ni-Mn Martensitic Steel Aided by Electron Backscattering Diffraction and Atom Probe Tomography”, Metallurgical and Materials Transactions A, 48A (2017) 5244-5257. |
| H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. R. Jafarian, H. Ghasemi-Nanesa, H. Shirazi “Observation of pseudoelasticity in a cold rolled Fe-Ni-Mn martensitic steel”, Materials Science and Engineering A, 658 (2016) 86-90. |
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H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. R. Jafarian, “Development of pseudoelasticity in Fe-10Ni-7Mn (wt %) high strength martensitic steel by intercritical heat treatment and subsequent ageing”, Materials Science and Engineering A, 621 (2015) 52-60. |
| H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. Ghasemi-Nanesa, “ Investigating on the reverse transformation of martensite to austenite and Pseudoelastic behavior in Ultrafine-Grained Fe-10Ni-7Mn (wt %) Steel processed by heavy cold rolling”, Advanced Materials Research, 829 (2014) 25-29. |
| H. Ghasemi-Nanesa, M. Nili-Ahmadabadi, H. R. Koohdar, M. Habibi-Parsa, S. Hossein Nedjad, S. A. Alidokht, Terence G. Langdon, “Strain-induced martensite to austenite reverse transformation in an ultrafine-grained Fe-Ni-Mn martensitic steel”, Philosophical Magazine, 94 (2014) 1493-1507. |
| R. Dehghan, S. A. Seyyed Ebrahimi, H. R. Koohdar, “Optimization of Dynamic CH4 Gas Heat treatment of Nanocrystalline Strontioum Hexaferrite”, International Journal of Modern Physics, 5 (2012) 752-759. |
| H. R. Koohdar, S. A. Seyyed Ebrahimi, A.Yourdkhani, R. Dehghan, F. Zajkaniha, ”Optimization of hydrogen dynamic heat treatment and re-calcination for preparation of strontium hexaferrite nanocrystalline powder”, Journal of Alloys and Compounds, 479 (2009) 638-641. |
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S. A. Seyyed Ebrahimi, R. Dehghan, H. R. Koohdar, and A. Yourdkhani, “ Conversion of Conventionally Synthesized Strontium Hexaferrite Powder Into a Nano Size Powder With Enhanced Coercivity Using GTMR Method”, IEEE Transactions on Magnetics, 45 (2009) 2601-2604. |
| A.Yourdkhani, S. A. Seyeed Ebrahimi, H. R. Koohdar, "Preparation of strontium hexaferrite nano-crystalline powder by carbon monoxide heat treatment and re-calcination from conventionally synthesized powder", Journal of Alloys and Compounds, 470 (2008) 561-564. |
| A.Yourdkhani, S. A. Seyeed Ebrahimi, H. R. Koohdar, “Optimization of Sr-Hexaferrite Dynamic Gaseous Heat Treatment by Carbon Monoxide”, International Journal of Modern Physics B, 22 (2008) 3133-3138. |
| مقالات ارائه شده در مجامع علمی-لاتین |
| H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. R. Jafarian, “On the pseudoelastic behaviour in a lath martensitic steel under two discrete processes consist of cold rolling and heat treatment”, the fourth International Conference on Smart Monitoring, Assessment and Rehabilitation of Civil Structures, Zurich, Switzerland, (2017). |
| F. Javadzadeh Kalahroudi, H. R. Koohdar, H. R. Jafarian, M. Nili-Ahmadabadi, Y. Haung, T. G. Langdon, “Effect of High-Pressure Torsion on the Microstructural Evolution and Mechanical Properties of an Fe-10Ni-Mn (wt. %) Lath Martensitic Steel”, 6th International Conference on Ultrafine-grained and Nanostructured Materials (UFGNSM17), Iran (2017). |
| H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. R. Jafarian, “EBSD and APT study of the reverse transformation mechanism and pseudoelastic behavior in Fe-9.6Ni-7.1Mn martensitic steel under heat treatment”, XV International Conference on Inter-granular and Inter-phase Boundaries in Materials, Moscow, Russia (2016). |
| H. R. Koohdar, M. Nili-Ahmadabadi, M. Habibi-Parsa, H. Ghasemi-Nanesa, “Observation of pseudoelastic behavior in ultrafine-grained Fe-10Ni-7Mn (wt %) steel due to reverse martensite transformation”, 3st International Conference on Ultrafine- grained and Nanostructured Materials (UFGNSM11), Iran (2011). |
| H. R. Koohdar, S. A. Seyyed Ebrahimi, A.Yourdkhani, “Comparision of Strontium Hexaferrite Nanocrystalline Powder Processing by Dynami H2 and CO Heat Treatment and Re-calcination", The 2nd International Solvothermal & Hydrothermal Association Conference, Beijing, China (2010). |
| H. R. Koohdar, S. A. Seyyed Ebrahimi, A. Yourdkhani, “Preparation of Strontium Hexaferrite Nanocrystalline Powder by Dynamic Hydrogen Heat Treatment and Recalcination”, 2nd International Congress on Nanoscience and Nanotechnology, Faculty of Chemistry, University of Tabriz, Iran (2008). |
| H.R.Koohdar, S.A.Seyyed Ebrahimi, A.Yourdkhani, “Processing of Strontium Hexaferrite Nanocrystalline Powder by Dynamic Gas Heat Treatment and Re-calcination", Third Seeheim Conference on Magnetism, Frankfurt, Germany (2007). |
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مقالات ارائه شده در مجامع علمی – فارسی |
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حمیدرضا کوه دار، سید علی سید ابراهیمی و امین یوردخانی، "بررسی تاثیر عملیات حرارتی تحت اتمسفر دینامیک هیدرون بر مورفولوژی ،ترکیب فازی و خواص مغناطیسی هگزافریت استرانسیم تهیه شده به روش مرسوم"، دومین همایش مشترک انجمن مهندسین متالورژی ایران و جامعه ریخته گران، کرج، آبان 1387. |
| حمیدرضا کوه دار، سید علی سید ابراهیمی و امین یوردخانی،"بررسی شرایط تجزیه و احیاء هگزافریت استرانسیم تهیه شده به روش مرسوم تحت اتمسفر دینامیک هیدرون"، هفتمین کنگره سرامیک ایران، شیراز، اردیبهشت 1388. |
| کتب تألیف شده | ||
| نام کتاب | نام نویسندگان | سال چاپ |
| Cold rolling practice of martensitic steel | M. Nili-Ahmadabadi, H. R. Koohdar, M. Habibi-Parsa | 2017 |
