Results 51 to 60 of about 45,924 (218)

Relationship between surface characteristics and the fatigue life of deep rolled AISI 4140 steel

open access: yesThe International Journal of Advanced Manufacturing Technology, 2023
Deep rolling is an effective and economically viable mechanical surface treatment that induces surface deformation by the action of a rolling tool. It is capable of reducing roughness, increasing hardness, and inducing compressive residual stresses on ...
A. M. Martins   +3 more
semanticscholar   +1 more source

A Statistical Review of Hydrogen Effects on the Fatigue and Fracture Behavior of Steel

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 48, Issue 9, Page 3613-3644, September 2025.
ABSTRACT This study conducts a statistical re‐analysis of experimental data from the literature to assess the influence of hydrogen on key mechanical properties, including the medium‐/high‐cycle fatigue strength and the threshold value of the stress intensity factor range.
H. Wang   +4 more
wiley   +1 more source

Topology optimization of AISI 4140 steel with surface texture filled by multi-solid lubricants for enhancing tribological properties

open access: yesFriction
Wind power gears will be excessively worn due to lubrication failure during operation. Herein, the tribological properties of rubbing pairs are improved by filling solid lubricants into surface texture.
Qipeng Huang   +3 more
semanticscholar   +1 more source

Hardness and Wear Characteristics of Laser-Clad WC-17Co Coatings on AISI H13 and AISI 4140 Steel [PDF]

open access: yesIranian Journal of Materials Science and Engineering, 2023
Elevating component performance through advanced surface coatings finds its epitome in the domain of laser cladding technology. This technique facilitates the precision deposition of metallic, ceramic, or cermet coatings, accentuating their superiority ...
Fabio Edson Mariani   +4 more
doaj  

From Damage to Functionality: Remanufacturing of Thrust Roller Bearings by Tailored Forming

open access: yesAdvanced Engineering Materials, Volume 27, Issue 16, August 2025.
Herein, the wear and fatigue behavior of repaired bearing raceways with a new powder alloy is investigated using a FE8 test‐rig and an oscillating tribometer. The tests are compared with industrial manufactured bearings to evaluate the repair quality. The repair can extend the service life of the repaired bearing to that of a new bearing and improves ...
Felix Saure   +3 more
wiley   +1 more source

Development of powder bed fusion – laser beam process for AISI 4140, 4340 and 8620 low-alloy steel

open access: yesPowder Metallurgy, 2022
This study focuses on process development and mechanical property evaluation of AISI 4140, 4340 and 8620 low-alloy steel produced by powder bed fusion – laser beam (PBF-LB). Process development found that increasing the build plate preheating temperature
W. Hearn, P. Harlin, E. Hryha
semanticscholar   +1 more source

Surface Improvement of Shafts by Turn-Assisted Deep Cold Rolling Process

open access: yesMATEC 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
doaj   +1 more source

Development and Design and Heat Treatment of Production, Storage and Mine Drilling Pipes in Petroleum and Geothermal Industries

open access: yesDüzce 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
doaj   +1 more source

An Atomic‐Scale View at γ’‐Fe4N as Hydrogen Barrier Material

open access: yesAdvanced 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

open access: yesHigh 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

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