Results 41 to 50 of about 468 (181)
Surface Improvement of Shafts by Turn-Assisted Deep Cold Rolling Process
MATEC Web of Conferences, 2016 It is well recognized that mechanical surface enhancement methods can significantly improve the characteristics of highly-stressed metallic components.
Prabhu Raghavendra +4 more
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Düzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020 In this study, sequential anddifferent temperature heat treatments were applied to steels after austenatingheat treatment applied to different AISI steel types.
İsmail Topcu +3 more
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An Atomic‐Scale View at γ’‐Fe4N as Hydrogen Barrier Material
Advanced Materials Interfaces, Volume 12, Issue 13, July 14, 2025.This study demonstrates the efficacy of γ’‐Fe4N nitride layers, formed via gas nitriding, as hydrogen permeation barriers. Advanced characterization, hydrogen permeation analysis, and DFT calculations reveal a 20 fold reduction in hydrogen diffusion at room temperature.
Aleksander Albrecht +11 more
wiley +1 more source
Simulation of Thermo-viscoplastic Behaviors for AISI 4140 Steel
High Temperature Materials and Processes, 2015 Abstract 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 describe the hot compressive deformation behaviors ...
Li Hong-Bin, Feng Yun-Li
openaire +2 more sources
steel research international, Volume 96, Issue 2, February 2025.Single‐step quenching and partitioning treatments applied on commercial AISI 4140 steel result in an ultimate tensile strength above 2000 MPa and up to 10% elongation, which represents a significant improvement compared to quenched and tempered conditions.
Marco Belfi +9 more
wiley +1 more source
Effect of the impact angles on the erosion wear resistance of borided AISI 4140 steel
Results in EngineeringThis study evaluates the erosive wear resistance of untreated AISI 4140 steel, borided AISI 4140 steel, and borided AISI 4140 steel subjected to diffusion annealing (DAP). Dual-phase FeB/Fe₂B and single-phase Fe₂B layers were obtained with thicknesses of
J. Martínez-Trinidad +5 more
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Metals, 2018 In many technical fields, high-strength steels like AISI 4140 are commonly used for highly dynamically loaded parts. Increasing demands on weight, performance and efficiency of the automotive industry lead to increasing demands on material properties ...
Nikolas Baak +4 more
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Process Parameters and Tool Design in Friction Stir Extrusion: A Sustainable Recycling Technique
Engineering Reports, Volume 7, Issue 1, January 2025.Friction stir extrusion is a solid‐state recycling technique based on severe plastic deformation supported by frictional heat. The paper considers the macrostructural, microstructural, and mechanical properties of the products and investigates different tool, mold, and machine designs.
Mostafa Akbari +5 more
wiley +1 more source
Marine Shaft Steels (AISI 4140 and AISI 5120) Predicted Fracture Toughness by FE Simulation
Medžiagotyra, 2017 Optimal selection of material can be considered as one of the most critical steps in engineering design process. That is especially emphasized when dealing with constructions that operate in marine environment; high stresses and harsh operating ...
Goran VUKELIC, Josip BRNIC
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Optimizing Process Parameters Using RSM to Increase the Strength and Ductility of B500BWR TMT Rebar
Journal of Engineering, Volume 2025, Issue 1, 2025.This study investigates the influence of hot working process parameters on the mechanical properties of thermomechanically treated (TMT) rebar grade B500BWR. The process involves hot rolling followed by quenching and self‐tempering. The goal is to identify the optimal parameter settings for achieving the desirable tensile strength, yield strength, and ...
Assefa Asmare Tsegaw +3 more
wiley +1 more source