Results 51 to 60 of about 45,924 (218)
Relationship between surface characteristics and the fatigue life of deep rolled AISI 4140 steel
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
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
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]
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
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
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
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
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
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
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

