Search Results - "Lekakh, Simon"

Phenomenological Analysis of Surface Degradation of Metallic Materials in Extreme Environment by Lekakh, Simon N., Neroslavsky, Oleg

“…The resistance to surface degradation in metallic alloys plays an important role for the lifetime of the components working in harsh environments. The…”
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Engineering Nucleation Kinetics of Graphite Nodules in Inoculated Cast Iron for Reducing Porosity by Lekakh, Simon N.

“…Inoculation of cast iron with spherical graphite (SGI) controls nucleation kinetics of graphite nodules and is used for improving casting performance and…”
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Effect of Spallation on Oxidation Kinetics of Heat-Resistant Cr–Ni Austenitic Steels on Air and Combustion Atmosphere by Lekakh, Simon N, Neroslavsky Oleg, Li, Mei, Godlewski, Larry, Zhu, Wenhui

“…Thin-walled castings made from Cr–Ni austenitic steels offer a combination of light weight of a near-net component with significant high temperature corrosion…”
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Engineering Heterogeneous Nucleation during Solidification of Multiphase Cast Alloys: An Overview by Lekakh, Simon N., Qing, Jingjing

“…The theory of heterogeneous nucleation was initially developed as a part of condensed matter physics, and later it was used as an important engineering tool to…”
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Structural Reconstruction of Solidification Kinetics in Cast Iron with Spherical Graphite by Lekakh, Simon Naumovich

“…A novel method for the structural reconstruction of solidification kinetics in cast iron with spherical graphite (SGI) is described in this paper. The method…”
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Effect of Al Additions on Scale Structure and Oxidation Kinetics of 430-Ferritic Stainless Steel Reheated in a Combustion Atmosphere by Osei, Richard, Lekakh, Simon, O’Malley, Ronald

“…Al is sometimes added to ferritic 430 type stainless steel to improve the surface appearance of cold rolled bright annealed products. High-surface quality is…”
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Thermodynamic Prediction and Experimental Verification of Multiphase Composition of Scale Formed on Reheated Alloy Steels by Osei, Richard, Lekakh, Simon, O’Malley, Ronald

“…The structure, phase, and composition of scale formed on a continuously cast steel slab during reheating depend on intrinsic factors (steel chemistry,…”
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Detection of Non-metallic Inclusions in Steel Continuous Casting Billets by Ren, Ying, Wang, Yufeng, Li, Shusen, Zhang, Lifeng, Zuo, Xiangjun, Lekakh, Simon N., Peaslee, Kent

“…This work applied automated particle analysis to study non-metallic inclusions in steel. Compared with traditional methods, the approach has the advantage of…”
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High Temperature Oxidation and Decarburization of SiMo Cast Iron in Air and Combustion Atmospheres by Lekakh, Simon N., Bofah, Asebi, Osei, Richard, O’Malley, Ron, Godlewski, Larry, Li, Mei

“…Silicon and molybdenum ( SiMo ) alloyed cast irons with spherical graphite are used for exhaust manifolds for service at high temperatures in air and…”
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Quantitative µ-CT Analysis of Scale Topology Formed During Oxidation of High SiMo Cast Iron by Lekakh, Simon N., Tucker, Wesley, Bofah, Asebi, Selly, Tara, Godlewski, Tara, Li, Mei

“…High SiMo cast iron components in automotive exhaust systems are exposed to high-temperature oxidation over time. Quantitative analysis of formed oxide scale…”
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Effect of Micro-structural Dispersity of SiMo Ductile Iron on Thermal Cycling Performance by Lekakh, Simon N., Athavale, Viraj A., Bartlett, Laura, Godlewski, Larry, Li, Mei

“…High alloyed by silicon and molybdenum (SiMo) ductile iron is a common material used for car exhaust systems, and its micro-structural dispersity depends on…”
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Effect of Micro-Structural Dispersity of SiMo Ductile Iron on High Temperature Performance during Static Oxidation by Lekakh, Simon N., Bofah, Asebi, Godlewski, Larry A., Li, Mei

“…High silicon and molybdenum (SiMo) ductile iron is commonly used for car exhaust systems, and its micro-structural dispersity depends on intrinsic parameters,…”
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The Oxidation of the HiSiMo Cast Irons Alloyed with Cr/Al at 800 °C by Zhu, Wenhui, Pint, Bruce A., Huo, Yang, Godlewski, Larry, Ghaffari, Bita, Lekakh, Simon, Engler-Pinto, Carlos, Li, Mei

“…To improve the oxidation resistance of cast iron containing Si and Mo (HiSiMo), 1wt.% Cr and 3wt.% Al were added into the base alloy to improve high…”
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Effect of Selenium on the Machinability of As-hot Rolled and Heat Treated 4140 Steel by Zhang, Xueliang, Lekakh, Simon N., O’malley, Ronald J., Scheid, Eduardo

“…This study aims to clarify the effect of selenium (Se) on the machinability of AISI 4140 steel in the as-hot rolled (HR) and quenched and tempered (QT)…”
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Optimization of Melt Treatment for Austenitic Steel Grain Refinement by Lekakh, Simon N., Ge, Jun, Richards, Von, O’Malley, Ron, TerBush, Jessica R.

“…Refinement of the as-cast grain structure of austenitic steels requires the presence of active solid nuclei during solidification. These nuclei can be formed…”
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Modeling and Simulation of Dynamic Recrystallization Behavior in Alloyed Steel 15V38 during Hot Rolling by Wang, Xin, Chandrashekhara, K., Lekakh, Simon N., Van Aken, David C., O'Malley, Ronald J.

“…Dynamic recrystallization (DRX) occurring during hot rolling significantly affects the microstructural evolution and final mechanical properties of steel. In…”
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Method to Investigate Mechanical Behavior of Steel Casting near Solidus Temperature by Lu, Yanru, Bartlett, Laura N., O’Malley, Ronald J., Lekakh, Simon N.

“…Hot crack formation in continuously cast steel is significantly influenced by the mechanical properties of the solid shell near its solidus temperature…”
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Control of Columnar to Equiaxed Transition in Solidification Macrostructure of Austenitic Stainless Steel Castings by Lekakh, Simon Naumovich, O’malley, Ron, Emmendorfer, Mark, Hrebec, Brenton

“…Solidification macrostructure is of great importance for the properties and the quality of castings made from austenitic grade stainless steels (ASS) because…”
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Thermal Decomposition Studies of EPS Foam, Polyurethane Foam, and Epoxy Resin (SLA) as Patterns for Investment Casting; Analysis of Hydrogen Cyanide (HCN) from Thermal Degradation of Polyurethane Foam by Zhao, Hongfang, Nam, Paul Ki-souk, Richards, Von L., Lekakh, Simon N.

“…Thermal and chemical characteristics of three different polymer pattern materials for investment casting were investigated: expandable polystyrene foam (EPS),…”
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High Strength Ductile Iron Produced by Engineered Cooling: Process Concept by Lekakh, Simon N.

“…Traditionally, high strength ductile irons are produced by a combination of alloying and heat treatment, both operations substantially increase the cost and…”
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