Results 11 to 20 of about 402 (182)
Simulation of Thermo-viscoplastic Behaviors for AISI 4140 Steel
High Temperature Materials and Processes, 2016 The thermo-viscoplastic behaviors of AISI 4140 steel are investigated over wide ranges of strain rate and deformation temperature by isothermal compression tests. Based on the experimental results, a unified viscoplastic constitutive model is proposed to
Li Hong-Bin, Feng Yun-Li
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Surface Integrity Analysis in Machining of Hardened AISI 4140 Steel [PDF]
Materials Research, 2017 This study aimed to analyze the residual stresses and roughness in finishing milling of AISI 4140 steel, quenched and tempered up to hardness of 58 HRC.
Marco Antonio Stipkovic +3 more
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Mechanical characterization of pack-boronized AISI 4140 and AISI H13 steels
International Advanced Researches and Engineering Journal, 2021 Wear losses have a great importance in the world machinery industry. They cause billions of dollars in financial losses every year. Studies on surface treatments are increasing day by day in order to minimize the wear losses of materials. In this study, the pack boronizing process was applied to AISI 4140 and AISI H13 steels, which are frequently used ...
Dilek ARSLAN, Selda AKGÜN
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Laser Surface Remelting of AISI 4140 Steel
IOP Conference Series: Materials Science and Engineering, 2020 Abstract In order to improve the surface wear resistance and hardness, laser remelting was used to process AISI 4140 steel. The microstructure and the Vickers hardness of surface and cross-section of those samples were studied. The results shown the laser power was one of the most important facts, which affect the enhanced hardness and ...
Lirun Zhao +5 more
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Wear of Tailored Forming Steels
Advanced Engineering Materials, Volume 25, Issue 13, July 2023., 2023 The wear behavior of additively welded steel cladding layers for tribologically loaded surfaces is investigated on a ball‐on‐disk tribometer. The results show that the steel–steel multimaterial specimens exhibit comparable wear behavior to conventional monolithic parts, demonstrating the potential for the use of additive manufacturing processes in ...
Timm Coors +5 more
wiley +1 more source
Effect of the Cryogenically Treated Copper Nozzle Used in Plasma Arc Machining of S235 Steel
Advances in Materials Science and Engineering, Volume 2023, Issue 1, 2023., 2023 The investigation was carried out by making use of the design of experiments method in order to achieve its objective, which was to study wear analysis in relation to a cryogenically treated nozzle that was utilized in plasma arc machining. Kerf width and surface roughness are two output characteristics that are key variables in deciding the quality of
N. Senthilkumar +4 more
wiley +1 more source
Mathematical Problems in Engineering, Volume 2023, Issue 1, 2023., 2023 Hard turning has replaced conventional grinding in production processes in recent years as an emerging technique. Nowadays, coated carbide tools are replacing expensive CBN inserts in turning. Wear is a significant concern when turning with coated carbide; it immediately affects the acceptability of the machined surface, which causes machine downtime ...
S. Ajitha Priyadarsini +5 more
wiley +1 more source
Characterization of AISI 4140 borided steels
Applied Surface Science, 2010 The present study characterizes the surface of AISI 4140 steels exposed to the paste-boriding process. The formation of Fe2B hard coatings was obtained in the temperature range 1123–1273 K with different exposure times, using a 4 mm thick layer of boron carbide paste over the material surface.
Campos Silva, I. +5 more
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Effects of Thiobacillus Ferrooxidans on corrosion of AISI 4140 Steel in presence of oil biodiesel
International Journal of Electrochemical Science, 2014 In this paper we study the behavior of microbiologically induced corrosion by means of specie Thiobacillus ferrooxidans on AISI 4140 Alloy Steel with chromium and molybdenum high hardenability and good fatigue resistance, abrasion and impact influenced ...
E. Ruiz, W. Aperador, A. Mejia
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Advances in Materials Science and Engineering, Volume 2023, Issue 1, 2023., 2023 Heat‐treated steel is widely used in industrial applications due to its high strength and other desirable mechanical qualities. Grinding, which requires a lot of power and is expensive, is typically used to harden machining. In recent times, hard machining has emerged as a viable alternative to grind in select applications.
Shah Ashiquzzaman Nipu +7 more
wiley +1 more source