Production technology for arctic pipeline and marine steel

Орлов, В. В.; Malyshevskii, V. A.; Хлусова, Е. И.; Golosienko, S. A.

doi:10.3103/s0967091214090113

Cited by 7 publications

(3 citation statements)

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“…To meet the increased demand of energy, large diameter, high-strength pipes are widely used for the purpose of improving energy transport efficiency (Ref [1][2][3][4][5]. Strength and low-temperature toughness, weldability, resistance to hydrogen-induced cracking, and resistance to fatigue were the critical properties required in these types of steels (Ref 6).…”

Section: Introductionmentioning

confidence: 99%

Effects of Ultra Fast Cooling on Microstructure and Mechanical Properties of Pipeline Steels

Tian

Li²,

Wang

et al. 2015

J. of Materi Eng and Perform

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X70 (steel A) and X80 (steel B) pipeline steels were fabricated by ultra fast cooling (UFC). UFC processing improves not only ultimate tensile strength (UTS), yield strength (YS), yield ratio (YS/UTS), and total elongation of both steels, but also their Charpy absorbed energy (A K ) as well. The microstructures of both steels were all composed of quasi polygonal, acicular ferrite (AF), and granular bainite. MA islands (the mixtures of brittle martensite and residual austenite) are more finely dispersed in steel B, and the amount of AF in steel B is much more than that in steel A. The strength of steel B is higher than that of steel A. This is mainly attributed to the effect of the ferrite grain refinement which is resulted from UFC processing. The finely dispersed MA islands not only provide dispersion strengthening, but also reduce loss of impact properties to pipeline steels. UFC produces low-temperature transformation microstructures containing larger amounts of AFs. The presence of AF is a crucial factor in achieving desired mechanical properties for both steels. It is suggested that the toughness of the experimental steel increases with increasing the amount of AF.

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Section: Introductionmentioning

confidence: 99%

Effects of Ultra Fast Cooling on Microstructure and Mechanical Properties of Pipeline Steels

Tian

Li²,

Wang

et al. 2015

J. of Materi Eng and Perform

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“…It is known from metallurgical practice that increasing the metallurgical quality of a metal can be performed at the stage of metal producing from a steelmaking unit, secondary refining steel by optimizing the deoxidation technology and modifying liquid steel, as well as during continuous casting by protecting the metal mirror in the crystallizer and affecting the crystallizing ingot [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Improving Shipbuilding Steel Grade Quality at Stages of Smelting, Secondary Refining, and Continuous Casting

Kovalev

Riaboshuk

Issagulov

et al. 2019

Metals

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This work studied the effect of the amount of additives and the composition of refining slags on the metallurgical of steel grades of the S355G10, S420G2, and S460G2 types. The objects of study were samples of industrial melts after out-of furnace refining of steel with different amounts and nature of additives. Based on the results obtained, the recommended amounts of additives and the composition of the refining slag have been developed, which makes it possible to reduce the metal contamination with non-metallic inclusions.

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“…In addition to low temperature, there are other factors that contribute to embrittlement of the tank material: a complex stress state, the presence of stress concentrators, etc. [11][12][13][14][15][16][17][18][19][20][21].…”

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confidence: 99%

Research of Properties of Austenitic Steels

Peregudov

Vologzhanina

Igolkin

2021

KEM

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Active development of the territories of Siberia and the Far East requires the use of materials that are able to work under the combined influence of low temperatures and a complex state. When operating equipment parts at low temperatures, it is necessary to take into account the impact of static and dynamic loads, as well as the influence of an external aggressive environment. The paper studies corrosion-resistant cold-resistant metastable austenitic steels, which are widely used for manufacturing parts of low-temperature equipment. Tests were performed to assess the strength and ductility characteristics of smooth samples and samples with annular notches for static stretching in the temperature range from 293 to 77 K.

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Production technology for arctic pipeline and marine steel

Cited by 7 publications

References 0 publications

Effects of Ultra Fast Cooling on Microstructure and Mechanical Properties of Pipeline Steels

Effects of Ultra Fast Cooling on Microstructure and Mechanical Properties of Pipeline Steels

Improving Shipbuilding Steel Grade Quality at Stages of Smelting, Secondary Refining, and Continuous Casting

Research of Properties of Austenitic Steels

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