Results 71 to 80 of about 5,815 (226)

EFFECTS OF CARBURIZING AND NITRIDING PROCESSES ON THE COST AND QUALITY OF GEARS PRODUCED WITH AISI 4140 AND 8620 STEELS [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2012
This study compares the effects of nitriding and carburizing processes applied to gears subjected to contact stresses below 1300 MPa. The manufacturing cost, as well the depth of hardened layer and the distortion produced by two processes are analyzed.
Claudio José Leitão   +2 more
doaj   +1 more source

Impact of cryogenic treatment on the performance of coated tungsten carbide inserts during machining of EN24 grade alloy steel

open access: yesEngineering Reports, Volume 6, Issue 9, September 2024.
This research presents the results of cry treated and untreated P20 grade carbide inserts for machining alloy steel (EN24 grade) under continuous turning circumstances. Abstract Today's industries need to be more productive, especially those that shape and machine materials.
R. Prem Chand   +5 more
wiley   +1 more source

Pengaruh Proses Hardening pada Baja Hq 7 Aisi 4140 dengan Media Oli dan Air terhadap Sifat Mekanis dan Struktur Mikro [PDF]

open access: yes, 2013
Proses hardening dilakukan pada temperatur pemanasan 850oC terhadap baja AISI 4140 dengan memberikan holding time selama 1 jam serta 2 macam media pendingin yaitu oli dan air. Selanjutnya dilakukan proses tempering pada temperatur 600oC dengan pemberikan
Sutowo, C. (Cahya), Susilo, B. A. (Bayu)
core   +1 more source

Corrosion fatigue of high strength fastener materials in seawater [PDF]

open access: yes
Environmental effects which significantly reduce the fatigue life of metals are discussed. Corrosion fatigue is a major concern in the engineering application of high strength fasteners in marine environments.
Tipton, D. G.
core   +1 more source

Deep Cryogenic treatment: a bibliographic review [PDF]

open access: yes, 2008
The use of cryogenic treatment (CT) to improve mechanical properties of materials has been developed from the end of the Sixties. At the present time, the initial mistrust about CT has been cleared up and many papers about different materials reporting ...
Baldissera, Paolo, Delprete, Cristiana
core   +2 more sources

Hardened AISI 4140 Steel Subjected to Hydrogen [PDF]

open access: yesMicroscopy and Microanalysis, 2021
Noé López Perrusquia   +5 more
openaire   +1 more source

AISI 1040 ve AISI 4140 Çeliklerinin Dinamik Sürtünme Katsayısının Deneysel İncelenmesi

open access: yes, 2023
A detailed study of the frictional behaviour of AISI 1040 and AISI 4140 steels, which are widely used in various engineering applications, is important for improving the performance of machines and optimising their durability. In this study, the factors affecting sliding friction and dynamic friction coefficients of steel materials are reviewed in the ...
Duman, Netice, Selçuk, Burhan
openaire   +1 more source

Frictional and structural characterization of ion-nitrided low and high chromium steels [PDF]

open access: yes
Low Cr steels AISI 41410, AISI 4340, and high Cr austenitic stainless steels AISI 304, AISI 316 were ion nitrided in a dc glow discharge plasma consisting of a 75 percent H2 - 25 percent N2 mixture.
Spalvins, T.
core   +1 more source

A portable load cell for in-situ ore impact breakage testing [PDF]

open access: yes, 2002
This paper discusses the design and characterisation of a short, and hence portable impact load cell for in-situ quantification of ore breakage properties under impact loading conditions.
Banini, George, Bourgeois, Florent
core   +1 more source

Effect of Cavitation on The Corrosion Behavior of Ti(CN)/TiNb(CN) Multilayer in Seawater

open access: yesInternational Journal of Electrochemical Science, 2014
The superficial wear generated by cavitation in an electrolyte as sodium chloride 3.5%, causes damage in steels AISI 4140 by corrosion, it is commonly used in hydraulic machines, therefore suggest to coat with a Ti(CN)/TiNb(CN) multilayer system ...
W. Aperador, E. Delgado, C. Amaya
doaj   +1 more source

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