Damascus steel ledeburite class

Sukhanov, D. A.; Arkhangelsky, L. B.; Plotnikova, N. V.

doi:10.1088/1757-899x/175/1/012017

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…Recently, ledeburite has been considered either as an intermetallic compound in the structure of iron-carbon alloys, for example, as a steel of the ledeburite class in the production of Damascus steel [21], or as a natural metalceramic composite material. Vasyunina N. V. showed [22] that according to the results of X-ray diffraction analysis, the structure of cast iron containing 93.8%Fe and 4.99 %C is considered as hypereutectic white cast iron with a composite structure (ledeburite + graphite).…”

Section: Introductionmentioning

confidence: 99%

Crystallization of FeC Iron Monocarbide During Peritectoidal Transformation of the Lamellar Eutectoid of Ledeburite White Eutectic Cast Iron

Davydov

2024

AAES

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The previously unknown process of homogeneous and heterogeneous crystallization of FeC iron monocarbide and its co-crystallizations with ε-carbide Fe2C from a supersaturated solid solution based on ε-carbide Fe2C or polycarbide quasi-eutectic formed in the process of peritectoid decomposition during prolonged heating (isothermal annealing) of the lamellar eutectoid ledeburite in cast eutectic white iron has been investigated. Crystallization of 2D monolayers of FeC monocarbide allotropes in the form of translucent extended and elastic crystalline nanofilms has been experimentally proved. The carbide phases in white cast iron can be characterized as a single isomorphic and isostructural quasi-carbide solid solution, which structurally crystallizes as a mixture of carbide phases as a quasi-eutectic, in which the carbon content is free to vary widely without indentification of the carbide phases proper. The decomposition product of the lamellar eutectoid as a result of peritectoid transformation during isothermal annealing is polycarbide with a gradient crystal lattice of solid solutions corresponding in carbon concentration to this or that carbide.

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Section: Introductionmentioning

confidence: 99%

Crystallization of FeC Iron Monocarbide During Peritectoidal Transformation of the Lamellar Eutectoid of Ledeburite White Eutectic Cast Iron

Davydov

2024

AAES

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“…Nowadays, groups of authors abroad, also at home in universities and research institutes, are assessing the properties of false Damascus steel. In relation to the choice of materials for the Damascus steel layers, the mechanical properties of the final product are different [12], [13]. The aim of the present study is to point out the laborious method of Damascus production, and to compare the mechanical properties of the primary components of Damascus Dsteel and the damascus steel itself.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical Properties of Damascus Steel

Židzik¹,

Mitalova²,

Botko³

et al. 2021

TEM Journal

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This article deals with examination of the mechanical properties of Damascus steel. Damascus steel is steel used for blades or knives – similar to the past (Damascus steel was a type of steel used for blades in the Near East – made from wootz steel – imported from India). This steel is characterized by significant patterns. The aim of the present study is to point out the laborious method of Damascus production, and to compare the mechanical properties of the initial Damascus steel layers comparison with whole reference Damascus material steel itself.

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“…Damascus steels ledeburite class with a content of 1.9 ... 2.3%, located between pre-eutectic white cast iron and steel [1]. This area of research has traditionally been of little modern scientific and practical works.…”

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confidence: 99%

Formation of Faceted Excess Carbides in Damascus Steels Ledeburite Class

Sukhanov¹,

Plotnikova²

2018

JMSE-B

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Abstract:In this research was developed stages of formation troostite-carbide structure into pure Damascus steel ledeburite class type BU22А obtained by vacuum melting. In the first stage of the technological process, continuous carbides sheath was formed along the boundaries of austenitic grains, which morphologically resembles the inclusion of ledeburite. In the second stage of the process, there is a seal and faceted large carbide formations of eutectic type. In the third stage of the technological process, troostite matrix is formed with a faceted eutectic carbide non-uniformly distributed in the direction of the deformation with size from 5.0 μm to 20 μm. It found that the stoichiometric composition of faceted eutectic carbides is in the range of 34 < C < 36 (atom %), which corresponds to -carbide type Fe 2 C with hexagonal close-packed lattice. Considering stages of transformation of metastable ledeburite in the faceted eutectic -carbides type Fe 2 C, it revealed that the duration of isothermal exposure during heating to the eutectic temperature, is an integral part of the process of formation of new excess carbides type Fe 2 C with a hexagonal close-packed lattice. It is shown that troostite-carbide structure Damascus steel ledeburite class (BU22А), with volume fraction of excess -carbide more than 20%, is fully consistent with the highest grades of Indian steels type Wootz. Modern Damascus steel type BU22А (Russia) can be described as carbon steel ledeburite class, with similar structural and morphological characteristics of die steel type X12 (Russia) or Cr12 (China) and high-speed steel type P6M5 (Russia) or W6Mo5Cr4V2 (China), differing from them only in the nature of excess carbide phase.

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Damascus steel ledeburite class

Cited by 7 publications

References 6 publications

Crystallization of FeC Iron Monocarbide During Peritectoidal Transformation of the Lamellar Eutectoid of Ledeburite White Eutectic Cast Iron

Crystallization of FeC Iron Monocarbide During Peritectoidal Transformation of the Lamellar Eutectoid of Ledeburite White Eutectic Cast Iron

Evaluation of Mechanical Properties of Damascus Steel

Formation of Faceted Excess Carbides in Damascus Steels Ledeburite Class

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