Results 81 to 90 of about 5,950 (223)

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

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

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

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

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

Reciprocal dry sliding wear behaviour of B4Cp reinforced aluminium alloy matrix composites [PDF]

open access: yes, 2012
Manuscript DraftIn the present work, AlSi9Cu3Mg alloy matrix composites reinforced with 15 and 19% (vol.) B4Cp were produced by squeeze casting route at 850 °C under low vacuum.
Kerti, Isil   +2 more
core   +1 more source

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

Welding of stell ABNT4140 without posterior thermal treatment.

open access: yesRevista Tecnologia, 2009
The procedure for conventional welding of the AISI 4140 steel, due to the martensite formation in the heated affected zone (HAZ), contemplates a postwelding heat treatment (PWHT) to relief the stress and to improve the toughness of this zone.
Jesualdo Pereira Farias   +1 more
doaj  

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

Electrochemical Corrosion of Hot Pressing Titanium Coated Steels for Biomaterial Applications

open access: yesInternational Journal of Electrochemical Science, 2010
Titanium diffusion process was applied to three selected steels, namely series AISI 1045, 4140 and stainless steel 304 using the hot pressing technique for a possible biomaterial use.
F. Barragán   +4 more
doaj   +1 more source

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