Results 51 to 60 of about 35,257 (266)

NUMERICAL AND EXPERIMENTAL ANALYSIS OF RESIDUAL STRESSES GENERATED DURING HARDENING OFAISI 4140 BAR [PDF]

Tecnologia em Metalurgia, Materiais e Mineração, 2012
The aim of this work is to analyze the distribution of residual stresses resulting from the combination of volumetric changes due to heat gradients and phase changes occurring during the quenching process of an AISI/SAE 4140 steel cylinder.
Edwan Anderson Ariza Echeverri, André Paulo Tschiptschin   +1 more
doaj   +1 more source

The effect of process parameters on microstructure and corrosion behavior of AISI 4140 steel modified by pulse plasma treatment

Journal of Electrochemical Science and Engineering, 2022
The pulse plasma system is a surface modification method applied to steel samples. In the present study, the effect of the nozzle distance and pulse number parameters were investigated on the modification process.
Yıldız Yaralı Özbek, Ayşe Şükran Demirkiran   +1 more
doaj   +1 more source

Corrosion Behavior of Boronized and Borochromized AISI 4140 Steel After Acid Exposure Evaluated by Electrochemical Impedance Spectroscopy

Journal of materials engineering and performance (Print), 2023
Boronizing of steel is a widely used method for superficial protection and strengthening of various components. Although it is an effective solution for most applications, it can be improved by adding metallic elements to enrich the coating with mixed ...
D. Zagkliveris, A. Mavropoulos, G. Triantafyllidis   +2 more
semanticscholar   +1 more source

Amorphous Hydrogenated Silicon Carbide Interlayers: Chemical, Optical, and Tribological Behavior for Improving Adhesion of Carbon‐Based Films to Ferrous Alloy

Surface and Interface Analysis, EarlyView.
ABSTRACT Diamond‐like carbon thin films have been gaining attention in the last years due to their unique properties, such as low friction coefficient and high wear resistance. However, the lack of adhesion between DLC coatings and ferrous alloys complicates their wider industrial application.
Vanessa Piroli, Michael Cristian Goldbeck, Jennifer Stefani Weber, Felipe Cemin, Bruna Louise Perotti, Carla Daniela Boeira, Fernando Alvarez, Newton Kiyoshi Fukumasu, Antonio Ricardo Zanatta, Alexandre Fassini Michels, Carlos Alejandro Figueroa   +10 more
wiley   +1 more source

Progressive Tool Wear in Cryogenic Machining: The Effect of Liquid Nitrogen and Carbon Dioxide

Journal of Manufacturing and Materials Processing, 2018
This experimental study focuses on various cooling strategies and lubrication-assisted cooling strategies to improve machining performance in the turning process of AISI 4140 steel.
Yusuf Kaynak, Armin Gharibi
doaj   +1 more source

Electropulsing effects on mechanical and metallurgical behavior of AISI-SAE 4140 steel [PDF]

, 2018
The electroplasticity phenomenon (EP) produces changes in the mechanical properties of a metal, due to the simultaneous application of mechanical stresses of compression, bending, etc., and high instantaneous current pulses.
González Rojas, Hernan Alberto, Higuera Cobos, Oscar Fabián, Kallewaard, Valentina, Montilla Montaña, Carlos A., Sánchez Egea, Antonio J   +4 more
core   +2 more sources

Improving Abrasion Resistance of Carbon‐Epoxy Hybrid Composites With Silicon Nitride Fillers

Engineering Reports, Volume 7, Issue 9, September 2025.
This study investigates the effect of silicon nitride filler on the two‐body abrasive wear behavior of carbon fabric‐reinforced epoxy composites. Results reveal a 33.1% reduction in wear volume loss with 6 wt% filler, demonstrating enhanced wear resistance.
Vinod B., Prem Chand R., Vasanth Kumar H. S., Jagannatha Reddy H. N., Manjunath G. Avalappa, Somashekar H. M., Bharath Basavaraj Pattanashetty, Mukesh Kumar   +7 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
doaj   +1 more source

Transformación bainitica en aceros sometidos a condiciones de enfriamiento continuo [PDF]

, 2007
En esta investigación se evalúo el cambio microestructural que presenta el acero AISI –SAE 4140 al ser sometido a condiciones de enfriamiento continuo con el fin de analizar la transformación bainítica.
Flórez García, Luis Carlos, Higuera Cobos, Oscar Fabián, Tristancho Reyes, José Luis   +2 more
core  

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

Friction
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, Chaohua Wu, Xiaoliang Shi, Kaipeng Zhang   +3 more
semanticscholar   +1 more source