Quality Control of Steels for Large-Sized Welded Structures of the Arctic Shelf: Application of Russian and Foreign Requirements

Filin, V. Yu.

doi:10.1134/s207511331906008x

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…The intensive development of modern technology is accompanied by increased requirements for performances of complex technical systems, including the fracture toughness of steels designed for low-temperature operation [1]. Tests should be done in full thickness [2,3].…”

Section: Introductionmentioning

confidence: 99%

On the Problem of Getting a Correct Crack Shape in Fracture Toughness Specimens of Low-Carbon Steel

Nazarova

Filin

Galchun

2022

MSF

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Fracture toughness test in full thickness is an essential part of structural steel certification and qualification of welding procedures for critical structures intended for low-temperature service. The material to be tested should be in a stress relieved state that closely relates to a straight shape of the fatigue precrack front. A lot of technological treatment procedures for specimens preparation have been experimentally tried and quantitatively calculated. This paper describes a part of these efforts in respect of applicability of increased cyclic asymmetry during precracking. This method appears useful to get a straight fatigue crack in base metal specimens as well.

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Section: Introductionmentioning

confidence: 99%

On the Problem of Getting a Correct Crack Shape in Fracture Toughness Specimens of Low-Carbon Steel

Nazarova

Filin

Galchun

2022

MSF

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“…Until recently, the main criterion for evaluating the cold resistance of these steels was the impact energy, estimated at low test temperatures on specimens with a cross section of 10×10 mm cut at the surface and from the middle of the plate. To make a judgment about the cold resistance of the plate throughout the entire thickness and thus assess the characteristics of its performance as a whole, static and dynamic tests are carried out on full-thickness specimens [1,2].…”

Section: Introduction and Problem Statementmentioning

confidence: 99%

Quantitative assessment of microstructural inhomogeneity by thickness of hot-rolled plates made of cold-resistant low-alloy steel for Arctic applications

Kazakov¹,

Kiselev²,

Sych³

et al. 2020

cisisr

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A technique to assess microstructural anisotropy assessing by the thickness of the plate steel based on the texture analysis of the image has been developed. This technique provides for the anisotropy assessment at two dimensional levels: in the short-distance and long-distance neighborhoods, which characterize the elongation along the rolling direction of fine and coarse structural constituents, respectively. The practical approval results of this technique in the study of the microstructural heterogeneity of ferritic-bainitic steels over the thickness of 25–70 mm hot-rolled plates have been presented. It has been shown that the proposed anisotropy criteria in combination with the volume fraction of coarse packet-block regions of lath bainite as well as regions of bainite without an internal developed subgrain structure adequately estimate the microstructural heterogeneity over the thickness of plate steel and can be used for a detailed interpretation of the two-stage thermomechanical processing technology with accelerated cooling including taking into account the metallurgical inheritance of the slab.

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Mechanism for improving low temperature impact toughness and fatigue durability of high-strength low-alloy steels for applications in the Arctic region

2020

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Quality Control of Steels for Large-Sized Welded Structures of the Arctic Shelf: Application of Russian and Foreign Requirements

Cited by 6 publications

References 4 publications

On the Problem of Getting a Correct Crack Shape in Fracture Toughness Specimens of Low-Carbon Steel

On the Problem of Getting a Correct Crack Shape in Fracture Toughness Specimens of Low-Carbon Steel

Quantitative assessment of microstructural inhomogeneity by thickness of hot-rolled plates made of cold-resistant low-alloy steel for Arctic applications

Mechanism for improving low temperature impact toughness and fatigue durability of high-strength low-alloy steels for applications in the Arctic region

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