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  • دکتری (1392)

    مهندسی متالورژی و مواد

    دانشگاه علم و صنعت ایران،

  • متالورژی و تکنولوژی جوشکاری شامل: جوشکاری پرتوالکترونی (EBW)، جوشکاری لیزر (LBW) و فرایندهای جوشکاری هیبریدی
  • مواد و فرایندهای پیشرفته شامل: ساخت افزایشی، سوپرآلیاژها، سلولهای خورشیدی، مواد نانوساختار و مواد زیستی
  • مهندسی و متالورژی سطح شامل: اصلاح سطح مواد برای کاربردهای زیستی و پزشکی
  • شبیه سازی کامپیوتری و مدلسازی تحلیلی در مهندسی مواد
  • جوشکاری و NDT

    زمینه های پژوهشی: جوشکاری، مواد پیشرفته

    کارشناس مسئول:

    تلفن: 021-82884908

    مکان: بلوک3 طبقه 1 شرقی اتاق 156

دکتر همام نفاخ موسوی متولد تهران-ایران سال 1361 می باشد. ایشان در حال حاضر عضو هیات علمی گروه شناسایی و انتخاب مواد دانشگاه تربیت مدرس بوده و در زمینه های جوشکاری، مواد پیشرفته و سطح مشغول فعالیت است.

ارتباط

رزومه

Multi-shelled bimetal V-doped Co3O4 hollow spheres derived from metal organic framework for high performance supercapacitors

E Niknam, H Naffakh-Moosavy, SE Moosavifard, MG Afshar
Journal Papers , , {Pages }

Abstract

Amorphous V-doped Co3S4 Yolk-Shell Hollow Sphere Derived from Metal-Organic Framework for High-Performance Asymmetric Supercapacitors

E Niknam, H Naffakh-Moosavy, SE Moosavifard, MG Afshar
Journal Papers , , {Pages }

Abstract

The influence of chromium addition on the metallurgical, mechanical and fracture aspects of Sn–Cu–Bi/Cu solder joint

R Rashidi, H Naffakh-Moosavy
Journal Papers , , {Pages }

Abstract

The effect of pulsed laser welding on hot cracking susceptible region size and weld pool internal geometry of Inconel 718: Numerical and experimental approaches

A Keivanloo, H Naffakh-Moosavy, R Miresmaeili
Journal Papers , , {Pages }

Abstract

Additive manufacturing of thin-walled SS316L-IN718 functionally graded materials by direct laser metal deposition

R Ghanavati, H Naffakh-Moosavy, M Moradi
Journal Papers , , {Pages }

Abstract

The effect of reduced graphene oxide sheet on the optical and electrical characteristics of Ni-doped and Ag-doped ZnO ETLs in planar perovskite solar cells

G Bagha, H Naffakh-Moosavy, MR Mersagh
Journal Papers , , {Pages }

Abstract

The role of rGO sheet and Ag dopant in reducing ZnO electron transport layer recombination in planar perovskite solar cells

G Bagha, MR Mersagh, H Naffakh-Moosavy, LF Matin
Journal Papers , , {Pages }

Abstract

Metallurgical, Physical, Mechanical and Oxidation Behavior of Lead-Free Chromium Dissolved Sn-Cu-Bi Solders

R Rashidi, H Naffakh-Moosavy
Journal Papers , , {Pages }

Abstract

Additive Manufacturing of Functionally Graded Metallic Materials: A Review of Experimental and Numerical Studies

R Ghanavati, H Naffakh-Moosavy
Journal Papers , , {Pages }

Abstract

The influence of laser frequency and groove distance on cell adhesion, cell viability, and antibacterial characteristics of Ti-6Al-4V dental implants treated by modern fiber …

N Eghbali, H Naffakh-Moosavy, SS Mohammadi, H Naderi-Manesh
Journal Papers , , {Pages }

Abstract

The effect of laser frequency on roughness, microstructure, cell viability and attachment of Ti6Al4V alloy

Kimia Rafiee, Homam Naffakh-Moosavy, Elnaz Tamjid
Journal PapersMaterials Science and Engineering: C , Volume 109 , 2020 April 1, {Pages 110637 }

Abstract

Titanium alloys are commonly used in orthopedic devices due to their good corrosion resistance, high specific strength and excellent biological response. The direct contact between the implant surface and the host tissue results in notable effect of surface properties such as surface topography on the biological responses. The aim of this study is to investigate the effect of frequency of pulsed Nd-YAG laser on Ti6Al4V alloy surface topography and its influence on the improvement of biocompatibility while other laser parameters kept constant. The range of applied frequency values were selected from 1 to 20?Hz. The range of surface roughness was found between 452?nm and 3.37?μm. The untreated sample and also samples with the highest and the

A Comparative Study of Analytical Rosenthal, Finite Element, and Experimental Approaches in Laser Welding of AA5456 Alloy

Hamidreza Hekmatjou, Zhi Zeng, Jiajia Shen, JP Oliveira, Homam Naffakh-Moosavy
Journal PapersMetals , Volume 10 , Issue 4, 2020 April , {Pages 436 }

Abstract

The thermal regime and microstructural phenomenon are studied by using finite-element (FE) modelling and the analytical Rosenthal equation during laser welding of aluminum alloy 5456 (AA5456) components. A major goal is to determine the merits and demerits of this analytical equation which can be an alternative to FE analysis, and to evaluate the effect of imperative assumptions on predicted consequences. Using results from the analytical and numerical approaches in conjunction with experiments, different physical features are compared. In this study, the results obtained from experiments in terms of melt pool shapes are compared with the predicted ones achieved from the numerical and analytical approaches in which the FE model is more accu

The effect of surface mechanical attrition treatment (SMAT) on plastic deformation mechanisms and mechanical properties of austenitic stainless steel 316L

Elham Rajabi, Reza Miresmaeili, Mahmood Aliofkhazraei
Journal PapersMaterials Research Express , Volume 6 , Issue 12, 2020 January 22, {Pages 1250g8 }

Abstract

In this work, surface mechanical attrition treatment (SMAT) was carried out on 316L stainless steel in order to study the effects of treatment parameters on the deformed depth and deformation mechanisms. Results showed that the residual stresses caused by collision of shots led to formation of martensite. Increase in treatment duration and shot size led to more martensite formation because of higher strains. An increasing hardness profile was also observed from the depth towards the surface in SMATed samples which was due to grain refinement, martensite formation and twinning. Strength of samples also was improved by SMAT so that the yield strength in the sample treated for 2 h by 6 mm shots was increased by 58 percent. In addition, Crussar

Damage mechanisms in the ultra-low cycle fatigue loading

M Kermajani, F Malek Ghaini, R Miresmaeili, MK Baghi-abadi, M Mousavi-nasab
Journal PapersEngineering Fracture Mechanics , Volume 223 , 2020 January 1, {Pages 106772 }

Abstract

Predicting extreme limit states in steel structures using finite element simulations requires an understanding of the fracture mechanisms themselves and the relationship of various models to these mechanisms. Aiming at addressing dominant damage mechanisms in the Ultra-Low-Cycle Fatigue (ULCF) regime which occurs during earthquakes, circumferentially notched tensile bars were subjected to cyclic loadings with large displacement amplitudes. Two weld metals from rutile and basic classifications and two different grades of structural steels were selected to determine the role of microstructural features in the response of materials to ULCF conditions. Scanning Electron Microscopy (SEM) technique equipped with 3D measurement software was employ

Sliding wear behavior of Ni–Co–P multilayer coatings electrodeposited by pulse reverse method

A Karimzadeh, A Sabour Rouhaghdam, M Aliofkhazraei, R Miresmaeili
Journal PapersTribology International , Volume 141 , 2020 January 1, {Pages 105914 }

Abstract

In this study, Ni–Co–P multilayer coatings were deposited using pulse reverse current. Alternative Co/P-rich and Co/P-poor layers were fabricated by alternation of cathodic duty cycle at 20 and 90% values. The layer thickness was altered within 3000–90 nm range. Coatings evaluation involved investigation of microstructure and chemical composition, microhardness, fracture toughness, and tribological measurements. The results showed that the thinning the layers enhanced the microhardness by up to 700 Hv and improved cracking resistance. Tribological study indicated that decreasing the layer thickness resulted in the friction coefficient lower than 0.4 and decreasing the mass loss and changing the wear mechanism from delamination to co

The relation between magnesium evaporation and laser absorption and weld penetration in pulsed laser welding of aluminum alloys: Experimental and numerical investigations

Zeinab Malekshahi Beiranvand, Farshid Malek Ghaini, Homam Naffakh Moosavy, Mohsen Sheikhi, Mohammad Javad Torkamany, Mahmoud Moradi
Journal PapersOptics & Laser Technology , Volume 128 , 2020 August 1, {Pages 106170 }

Abstract

It is observed that in laser welding of aluminum alloys, magnesium can evaporate, and the weld penetration is dependent on Mg content of the alloy and Mg loss from the weld pool. In this research, it is proposed that the presence of Mg not in the base metal alloy, but rather the presence of Mg vapor in the plasma plume over the weld pool affects the laser absorption, and it is through this phenomenon that the weld profile and penetration is affected. Numerical simulation was performed to determine the relationship between the weld profile to estimate the effective laser absorption coefficient of four Al alloys and in parallel EPMA technique was used to determine the Mg losses of the weld metals. The combined analysis of the results showed t

One step preparation of Fe doped CoSe2 supported on nickel foam by facile electrodeposition method as a highly efficient oxygen evolution reaction electrocatalyst

A Zare, A Bayat, E Saievar-Iranizad, H Naffakh-Moosavy
Journal Papers , , {Pages }

Abstract

Pulsed Nd: YAG laser welding of 17-4 PH stainless steel: Microstructure, mechanical properties, and weldability investigation

Milad Bahrami Balajaddeh, Homam Naffakh-Moosavy
Journal PapersOptics & Laser Technology , Volume 119 , 2019 November 1, {Pages 105651 }

Abstract

Pulsed Nd:YAG laser welding of 17-4 martensitic precipitation hardening (PH) stainless steel (SS) is investigated. In order to achieve optimum laser welding parameters, bead on plate (BOP) welding was conducted on 17-4 PH SS. No crack was detected in the weldments, and microstructure of weld metal was δ-ferrite in the martensite matrix. Resistance to cracking of weldment was correlated to the presence of δ-ferrite in the weld metal, and using pulsed Nd:YAG laser as a low heat input welding method. Four HAZs were distinguished and microstructure evaluation in each zone is discussed. In the second part of this research, pulsed Nd:YAG laser welding of similar 17-4 PH SS in butt joint configuration was performed. Microstructure characterizati

The effect of pulsed Nd: YAG laser welding parameters on defects of Kovar to AISI 304L dissimilar joint

Hassan Akhiri Ardakani, Homam Naffakh-Moosavy
Journal PapersOptics & Laser Technology , Volume 118 , 2019 October 1, {Pages 62-68 }

Abstract

Kovar, due to its close thermal expansion coefficient to glass, can be used as a mediating alloy in joint of glass to metals such as AISI 304L. In the present research, the effect of parameters of pulsed laser on dissimilar welding of Kovar to AISI 304L has been investigated. For observation and investigation of the results, metallography, Energy dispersive X-ray spectroscopy (EDS) and microhardness tests have been used. Results obtained from microstructural examinations, indicated the existence of solidification crack and lack of complete mixing in the weld metal. According to the results, the heat input must have an optimum value equaling approximately 19.1 J/mm. At higher levels such as 32.6 J/mm, the TCL (total crack length) value r

Investigation of collision surfaces and weld interface in magnetic pulse welding of dissimilar Al/Cu sheets

Morteza Sarvari, Amir Abdollah-zadeh, Homam Naffakh-Moosavy, Ali Rahimi, Hamed Parsaeyan
Journal PapersJournal of Manufacturing Processes , Volume 45 , 2019 September 1, {Pages 356-367 }

Abstract

Magnetic Pulse Welding (MPW) is an essential procedure for joining of dissimilar metals. The high velocity collision and jetting are the most important aspects of MPW controlled by welding parameters: discharge voltage and air gap. In this study, the collision surfaces and interface of MPW of pure Al and Cu are investigated. The effect of air gap on the bonding is studied by variation of the air gap from 0.7 to 4 mm. The collision surfaces of Cu and Al, the interface of welding and fracture surface were examined by optical microscope and SEM equipped with EDS analysis. The results revealed that the metallurgical bonding is obtained in the air gap of 0.7 mm, whereas higher air gaps (1 to 4 mm) result in debonding due to higher impact e

دروس نیمسال جاری

  • كارشناسي ارشد
    تغييرحالت هاي متالورژيكي ( واحد)
    دانشکده فنی و مهندسی، گروه شناسايي وانتخاب مواد
  • كارشناسي ارشد
    متالورژي پيشرفته جوشكاري ( واحد)
  • كارشناسي ارشد
    آزمايشگاه جوشكاري پيشرفته ( واحد)
  • كارشناسي ارشد
    لحيم كاري سخت و نرم ( واحد)

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