Results 11 to 20 of about 24,333 (225)

High-resolution 3D weld toe stress analysis and ACPD method for weld toe fatigue crack initiation [PDF]

open access: yes, 2019
Weld toe fatigue crack initiation is highly dependent on the local weld toe stress-concentrating geometry including any inherent flaws. These flaws are responsible for premature fatigue crack initiation (FCI) and must be minimised to maximise the fatigue
Chaudhuri, Somsubhro   +3 more
core   +2 more sources

Sress-corrosion cracking under cathodic protection of low alloy steel joints with high frequency weld and arc weld

open access: yesФізика і хімія твердого тіла, 2022
According to the results of complex electrochemical, corrosion-mechanical and fractographic studies, the existence of three potential regions, in which the stress-corrosion cracking (SCC) of 17G1S (17G1S-U) steel in the NS4 model soil electrolyte occurs ...
L.I. Nyrkova   +5 more
doaj   +1 more source

The influence of copper on the properties of ductile iron for producing centrifugally cast rolls [PDF]

open access: yes, 2018
An intentional change in material properties is an important condition for castings production. It is one way how to meet the casting requirements of how to adapt the material properties to the operating conditions.
Hampl, Jiří   +2 more
core   +1 more source

Modern metallography – the basis of foundry material science

open access: yesЛитьë и металлургия, 2019
The article briefly discusses the capebilities of modern metallography – optical contrasting, quantitative metallography, image processing programs. The question of the absence of modern literature on metallography is touched on.
A. G. Anisovich
doaj   +1 more source

Analysis of naturally etched surface of brass sheathing from a nineteenth-century shipwreck [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2018
The Akko Tower Wreck is ently the remains of a 25-m-long merchant brig, dated to the first half of the nineteenth century. During the 2015 underwater excavation, a piece of brass sheet was retrieved from the shipwreck and its surface and bulk were ...
Ashkenazi D., Inberg A., Cvikel D.
doaj   +1 more source

Metallographic Study of the Casting Made from CMSX-6 SC Nickel-Based Superalloy

open access: yesArchives of Metallurgy and Materials, 2017
Microstructural characterization is an important tool to optimize the properties of engineering materials. Quantitative metallography is a common technique, which provides three-dimensional estimations of phases and structure elements from two ...
Szczotok A.
doaj   +1 more source

Corrosion Behavior of Heat-Treated Nickel-Aluminum Bronze and Manganese-Aluminum Bronze in Natural Waters

open access: yesMetals, 2022
Nickel Aluminum Bronze (NAB) and Manganese Aluminum Bronze (MAB) are high-alloyed bronzes that are increasingly employed in several industrial sectors, mainly related to hostile environments due to their excellent properties against corrosion, cavitation,
Ignacio Cobo Ocejo   +2 more
doaj   +1 more source

Metalografía a color en aleaciones Al-Si comerciales. Optimización de las técnicas de caracterización microestructural mediante microscopía óptica de reflexión

open access: yesRevista de Metalurgia, 2010
La demanda de aleaciones con calidades optimizadas conlleva la mejora continua de estas calidades, lo que viene suscitando la necesidad de mejora y optimización permanentes de las técnicas de caracterización metalográfica.
B. Suárez-Peña   +2 more
doaj   +1 more source

The Olokun head reconsidered

open access: yesAfrique Archéologie Arts, 2013
The opportunity was taken in 2010 to carry out a full scientific and technical examination of the brass head from Ife, popularly known as the Olokun head, first published in 1912 by Leo Frobenius, together with a selection of other Ife heads that came to
Paul T. Craddock   +6 more
doaj   +1 more source

Sum rules for X-ray magnetic circular dichroism spectra in strongly correlated ferromagnets [PDF]

open access: yes, 2005
It is proven that the sum rules for X-ray magnetic dichroism (XMCD) spectra that are used to separate spin and orbital contributions to the magnetic moment are formally correct for an arbitrary strength of electron-electron interactions.
Ankudinov   +24 more
core   +3 more sources

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