Results 21 to 30 of about 7,618 (233)
Improving the process of layerwise laser welding of metal parts by controlling residual stresses
Известия высших учебных заведений. Поволжский регион:Технические науки, 2022 Background. Layerwise laser welding of metal parts allows you to get a weld in layers. As a result of the heating of the surface, thermal stresses sharply increase, caused by a non-stationary temperature field.
T.N. Ivanova, A.Yu. Muyzemnek
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Technology of manufacturing copper and bronze tools of the Petrovka Culture of the Southern Trans-Urals and Middle Tobol region [PDF]
Вестник археологии, антропологии и этнографииThe article presents the results of metallographic analysis of the Petrovka Culture tools from the southern Trans-Urals and Middle Tobol River region of the 19th–18th centuries BC (47 items).
Degtyareva A.D.
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Вестник СибАДИ, 2021 Introduction. The ways of increasing the reliability of road construction machinery operation are considered. As a result, an option is proposed to replace the used 09Г2С steel with 30MnB5 boron steel. Using the example of a motor grader blade, the force
A. P. Scherbakov +2 more
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Technological research into the metal attributes of the Northern Selkup shaman costume of the XVII–XVIII centuries [PDF]
Вестник археологии, антропологии и этнографии, 2020 To reconstruct the technological methods and technical achievements of Northern Selkup blacksmiths, the components of the Northern Selkup shaman costume, which is composed of ferrous metal, were studied using metallographic analysis methods.
Zinyakov N.M., Poshekhonova O.E.
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Metallographic analysis of the internal microstructure of orthodontic mini-implants [PDF]
Brazilian Oral Research, 2010 Effective orthodontic anchorage may be obtained by miniimplants inserted into the maxillary bones. However, the risk of miniimplant failure is one of the most important issues, especially the rupture of its structure referred to as fracture, mainly due to metal deficiencies.
Cotrim-Ferreira, Flávio Augusto +4 more
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Metallographic analysis and kinetic equation of the graphitization process of graphitized steel
工程科学学报, 2022 Graphitized steel can have good machinability and formability, or high strength through controlling microstructure. The graphitization process is formation of graphite particles in graphitized steel, which is key to control the microstructure and ...
Yong-jun ZHANG +4 more
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An Analysis of the Metal Connection Using Metallographic Investigation
Metallurgist, 2023 Pistons are mainly made of Al-Si alloys. The first piston channel’s highly loaded diesel engines use a ring carrier. In this case, two different materials (aluminum alloy and austenitic cast iron) must establish an excellent metallic bond (intermetallic bonding layer).
S. Manasijević +4 more
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Weaponry of the upper Taz River Selkups according to metallographic studies (based on materials from the Kikki-Akki burial ground) [PDF]
Вестник археологии, антропологии и этнографииThe 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.
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Slavia Antiqua, 2020 Archaeological artefacts made of copper alloys are a particularly valuable source of knowledge about ancient societies; in recent years these finds have been more and more often analysed in terms of their chemical composition.
Anna Strobin , Jarosław Strobin
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Metallographic Procedures and Analysis – A review
Periodicals 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 themetallographic preparation processes, and how to analyse the prepared specimens.
Enes Akca, Erwin Trgo
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