Results 31 to 40 of about 36,805 (268)

Grain refinement in a AlZnMgCuTi alloy by intensive melt shearing: A multi-step nucleation mechanism [PDF]

open access: yes, 2011
This is a post-print version of the article. Copyright @ 2010 Elsevier B.V.Direct chill (DC) cast ingots of wrought Al alloys conventionally require the deliberate addition of a grain refiner to provide a uniform as-cast microstructure for the ...
Cao   +35 more
core   +1 more source

Determination of carburized layer thickness by GDOES method [PDF]

open access: yes, 2018
The aim of this paper is to consider the possibility of using Glow Discharge Optical Emission Spectroscopy (GDOES) for determination of carburized layer thickness.
Vontorová, Jiřina, Váňová, Petra
core   +2 more sources

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

Weaponry of the upper Taz River Selkups according to metallographic studies (based on materials from the Kikki-Akki burial ground) [PDF]

open access: yesВестник археологии, антропологии и этнографии
The paper presents the analysis of the weaponry items (108 arrowheads, 2 spearheads, and 2 glaive heads) recovered from the 17th–19th cc. burial ground of Kikki-Akki (Yamalo-Nenets Autonomous Okrug, Taz River) of the Upper Taz Selkups, aiming at the ...
Zinyakov N.M., Poshekhonova O.E.
doaj   +1 more source

Determination of the reasons for the rupture of links in the product “round flat‑link chain” after mechanical tests for fatigue strength at the consumer

open access: yesЛитьë и металлургия, 2023
The article describes the conducted research of the product “round flat‑link chain”, with the rupture of three links after heat treatment and mechanical tests at the consumer.
I. A. Kovaleva   +2 more
doaj   +1 more source

Failure Analysis and Protection of Oxygen Corrosion of Reheater Tube in a Power plant [PDF]

open access: yesE3S Web of Conferences, 2021
The failure analysis of reheater tubes were analyzed by means of alloy composition analysis, metallographic structure analysis, mechanical properties analysis and oxide composition analysis.
Yang Chao   +3 more
doaj   +1 more source

Metallographic Procedures and Analysis – A review

open access: yesPeriodicals of Engineering and Natural Sciences (PEN), 2015
The purpose of this research is to give readers general insight in what metallography generally is, what are the metallographic preparation processes, and how to analyse the prepared specimens.
Enes Akca, Erwin Trgo
openaire   +2 more sources

Metallographic study of non-ferrous metal products from the Maray 1 site of the Baitovo Culture in the Lower Ishim River region [PDF]

open access: yesВестник археологии, антропологии и этнографии
The article examines non-ferrous metal products from the Baitovo Culture materials of the Early Iron Age hillfort of Marai 1. This settlement is located in the forest-steppe of the Ishim River region of Western Siberia.
Tigeeva E.V.
doaj   +1 more source

Metal of the Abashevo Culture from the Middle Don

open access: yesАрхеология евразийских степей, 2022
The results of a morphological and typological study, spectral, atomic emission spectrometric and metallographic analyzes of 20 items from the burial grounds and the settlement of the Abashevo culture from the territory of Voronezh Oblast are presented ...
Anna D. Degtyareva, Sergey V. Kuzminykh
doaj   +1 more source

A document analysis of the visibility of sustainability in TVE teacher education programme: the case of a Malaysian HEI [PDF]

open access: yes, 2017
There has been a global call for institutions of learning to engage in Education for Sustainable Development (ESD) by leading world organisations. Although scholars advocate for an interdisciplinary approach to sustainability, the research literature ...
Jaat, Norrizam   +7 more
core   +1 more source

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