Mahmood Sameezadeh
Shahid Beheshti University
Composite numberUltimate tensile strengthCrystalliteCreepComposite materialThermal barrier coatingParticle sizeMetallurgyMaterials scienceScanning electron microscopeIntermetallicHot pressingTRIP steelAlloyHot rolledMechanical millingFracture (geology)Stress intensity factorFracture mechanicsVolume fractionStructural engineeringEquiaxed crystalsBrazingMicrostructureStress (mechanics)Nanocomposite
17Publications
3H-index
80Citations
Publications 17
Newest
#1Sasan Hassanlou (Shahid Beheshti University)
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Majid Vaseghi (Shahid Beheshti University)H-Index: 7
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In this research, hypereutectoid Si–Mn TRIP steel was prepared via casting method followed by thermomechanical processing and different heat treatments. Subsequently, fracture behavior and mechanical properties of the prepared steel were investigated. The time–temperature–transformation curves of the specimens were predicted by a simulation software. Their mechanical properties were studied through tensile, hardness, and impact tests. The microstructure and fracture behavior of the specimens wer...
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#1Niloufar Zarhanesh (Shahid Beheshti University)
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Majid Vaseghi (Shahid Beheshti University)H-Index: 7
view all 3 authors...
In this study, a novel and Thermal-Gradient Creep (TGC) test aided with the Image Processing Method (IPM) was designed and performed on 63Sn-37Pb eutectic solder alloy. To obtain the creep data of ...
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#1Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
#2S. Hasanlou (Shahid Beheshti University)
Last. Majid Vaseghi (Shahid Beheshti University)H-Index: 7
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Abstract Failure analysis of a 17th stage blade of a steam turbine fractured in the vicinity of the lacing hole is discussed in this study. For this purpose, visual inspection, chemical and structural analyses, hardness and uniaxial tensile tests, macro and micro-fractography, fracture mechanics calculations, as well as computer simulations have been carried out. According to the results of the hardness and tensile tests and a comparison with the properties of AISI 410 martensitic stainless stee...
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#1Majid Vaseghi (Shahid Beheshti University)H-Index: 7
#2Hossein Zand (Shahid Beheshti University)
Last. Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
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Abstract In this paper, brass/steel/brass clad-composite was fabricated using a cold roll-bonding process. Composite sheets were roll-bonded at reduction ratios between 37 and 72% at room temperatu...
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#1Sanaz Nazaralizadeh (Shahid Beheshti University)
#2Majid Vaseghi (Shahid Beheshti University)H-Index: 7
Last. Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
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#1Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
#2Majid Vaseghi (Shahid Beheshti University)H-Index: 7
Last. H. Zafari (Shahid Beheshti University)
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#1Maryam Abdollahi (Shahid Beheshti University)
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Majid Vaseghi (Shahid Beheshti University)H-Index: 7
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ABSTRACTReduction of nickel oxide (NiO) by hydrogen gas is an affordable and simple way in comparison with the other chemical methods to produce and retrieve the pure nickel powder. Properties of the reduced Ni powder are dependent on many parameters such as the temperature, holding time, and hydrogen gas flow. The main reported mechanism of hydrogen reduction contains the decomposition of the oxide into gas-state phases and then condensation of the product supersaturated vapor. In the present w...
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#1Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Pedram Safarpour (Shahid Beheshti University)H-Index: 4
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Abstract Increasing the temperature of the combustion products in power plant turbines is one of the easiest way to enhance the efficiency and decrease the fuel costs. Therefore, using thermal barrier coating (TBC) to protect the load carrying components in the hot gas path is inevitable. In this manuscript, the damage caused by trip shutdown in power plants as an emergency thermal shock is investigated based on analytical and finite element (FE) analysis for in-plane stress condition. The used ...
3 CitationsSource
#1Ali Ghaseminezhad Koushali (Shahid Beheshti University)H-Index: 2
#2Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
Last. Pedram Safarpour (Shahid Beheshti University)H-Index: 4
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Abstract Demand for enhanced jet engine efficiencies has led to a significant increase in the combustion temperature. Thus protecting components against the combustion products is necessary and is possible by using thermal barrier coatings (TBCs). In this research, thermal fatigue and creep interaction are studied via analytical and numerical finite element methods. Thermal stress and crack propagation analyses in the ceramic top coat are carried out based on plane stress condition and under inh...
3 CitationsSource
#2Majid Vaseghi (Shahid Beheshti University)H-Index: 7
Last. Mahmood Sameezadeh (Shahid Beheshti University)H-Index: 3
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In the last decade, graphene as one of the novel engineering materials with unique properties has been strongly considered by researchers. Graphene based supercapacitors and transistors are one the most recent subjects in the case of solar energy system fields. In this study, five main methods of the grapheme synthesis including micro-mechanical cleavage, liquid-phase exfoliation, graphene via graphite oxide, graphene from mechanical milling of graphite and electrochemical exfoliation of graphit...