Results 51 to 60 of about 4,788 (225)

Corrosion Resistanne of the [TiN/CrN]n Coatings Deposited on Steel AISI 4140

open access: yesInternational Journal of Electrochemical Science, 2013
In this paper is presented the improvement against corrosion of the multilayer coatings [TiN/CrN]n with periods of 20, 50, 100 and 200 bilayers deposited by the PVD magnetron sputtering technique on carbon steel AISI 4140.
W. Aperador, A. Delgado, J. Duque
doaj   +1 more source

Analysis of the Possibilities of Using Forging Heat in Isothermal Annealing Processes for AISI 4140 Alloy [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
Production processes of hot forging most often look similar [1-3]. Forging in several operations, usually in three or four. Most often the first operation is upsetting or flattening (sometimes rolling). The last operation is finishing forging.
M. Zwierzchowski
doaj   +1 more source

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

Optimization and analysis of cutting parameters using cryogenic media in machining of high strength alloy steel [PDF]

open access: yes, 2013
In this research, liquid Argon is used as a cryogenic media to optimize the cutting parameters for evaluation of tool flank wear width of Tungsten Carbide Insert (CNMG 120404-WF 4215) while turning high strength alloy steel.
Ali, Liaqat   +5 more
core  

Characterization and wear performance of boride phases over tool steel substrates [PDF]

open access: yes, 2016
This research work was conducted to characterize boride phases, obtained from the powder-pack process, on AISI H13 and D2 steel substrates, and investigate their tribological behavior.
Bernal Ponce, J.L.   +6 more
core   +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

Evaluation of the Corrosion Erosion by Cavitation of Multilayer Coatings Type Binary, Ternary and Quaternary Deposited on Steel AISI 4140

open access: yesInternational Journal of Electrochemical Science, 2014
This article presents the evaluation of the corrosion erosion resistance erosion caused by cavitation generated on the binary type coatings [TiN / CrN]200, ternary [TiN / AlTiN]200 and quaternary [TiCN / TiNbCN]200 obtained by physical vapour deposition ...
W. Aperador, E. Ruíz, A. Mejia
doaj   +1 more source

Experimental characterization of friction coefficients at the tool-chip-workpiece interface in cutting: Evaluation of lubrication efficiency of mineral oil [PDF]

open access: yes, 2010
Collaboration avec le LTDS/ENISEThe characterization of friction coefficients at the tool-chip-workpiece interface remains an issue. This paper presents a new experimental set-up able to simulate similar tribological phenomena as the ones occurring at ...
CLAUDIN, Christophe   +4 more
core   +2 more sources

On the Strain Hardening and Tensile Properties of AISI 4140 Steel via Single‐Step Quenching and Partitioning Treatments

open access: yessteel 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

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  

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