Results 21 to 30 of about 12,396 (272)

A comparison of grain size determination by light microscopy and EBSD analysis [PDF]

open access: yes, 2005
This study shows that the accuracy of optical microscopy analysis of grain size depends on sample preparation techniques, etching procedures and materials, where the visibility of a boundary is a function of the techniques used, and the microstructure ...
Starink, M.J.   +3 more
core   +1 more source

Metallographic analysis of an iron vessel fragment from the Late Saka kurgan of the Kyzylzhartas burial ground, Central Kazakhstan [PDF]

open access: yesВестник археологии, антропологии и этнографии
Two fragments of the rim of an iron vessel have been found in mound 2 of the Kyzylzhartas cemetery located in the Shet district of the Karaganda region. The mound, 34 m in diameter and 1.4–2 m high, represents a burial site of the elite of the Late Saka ...
Beisenov A.Z. , Panichkin A.V.
doaj   +1 more source

The state of the ironworking industry in the cities of Western Siberia in the 17th–18th centuries (according to metallographic data) [PDF]

open access: yesВестник археологии, антропологии и этнографии
The article examines iron-working production in the 17th–18th centuries in four cities of Western Siberia, each of which held a different legal status. Tobolsk functioned as the main city and administrative centre of Siberia, Tomsk was a regional centre,
Zinyakov N.M.
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

Headdress, Ritual and Gender Symbols (reconstruction based on materials of the bronze age from the Novye Yabalakly 1 burial ground)

open access: yesАрхеология евразийских степей, 2022
A bronze jewelry set was found during excavations of a woman’s and a child’s grave at the Novye Yabalakly 1 burial ground (located in the Republic of Bashkortoston on the right bank of the Dema River), attributed to the Srubnaya culture (third quarter of
Emma R. Usmanova   +3 more
doaj   +1 more source

Improving the process of layerwise laser welding of metal parts by controlling residual stresses

open access: yesИзвестия 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
doaj   +1 more source

Metallographic Study of Overlapped Laser Welds of Dissimilar Materials

open access: yes, 2022
The paper deals with the metallographic analysis of overlapped laser welds of dissimilar materials based on galvanized and ungalvanized steels in various combinations. In addition to a gallery of metallographic sections, the paper presents the monitoring
Dagmar Draganovská   +8 more
core   +1 more source

Analysis of Eddy-Current Testing and Metallographic Examinations for Corrosion Damages of Heat Exchanging Tubes in NPP Steam Generators

open access: yes, 2020
This paper represents the mechanism for corrosion damages of heat exchanging tubes (HET) of a steam generator PGV-1000 for various operational conditions. It was determined that corrosion damages locate mainly at the bottom of the steam generator bundled
Volodymyr Vostres   +2 more
core   +1 more source

Technology of manufacturing copper and bronze tools of the Petrovka Culture of the Southern Trans-Urals and Middle Tobol region [PDF]

open access: yesВестник археологии, антропологии и этнографии
The 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.
doaj   +1 more source

Influtnce analysis of 09Г2С and 30MnB5 steels thermo cyclic treatment on strength characteristics of road construction machines working bodies

open access: yesВестник 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
doaj   +1 more source

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