The influence of property anisotropy on the technological effectiveness of weldable steels

Medinskaya, I. P.; Rubenchik, Yu. I.; Pisarenko, T. A.; Afanasenko, E. A.

doi:10.1007/bf01154757

Cited by 2 publications

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“…Also, it is shown that the ductility property in short transverse direction depends on sulphur content of steel plate. 9 Decreasing the sulphur content of steel leads to linear increasing of the ductility property in short transverse direction. As a result of ultra-low sulphur content of the current material, the elongated MnS inclusions possess very low thickness and lead to low ductility anisotropy of the current material.…”

Section: Resultsmentioning

confidence: 99%

“…Inferior short transverse mechanical properties of steels arise from four factors: (1) banded microstructures, (2) elongated inclusions, (3) crystallographic texture (preferred crystal orientation) and (4) elongated grains. It is well established, through several publications, 3,[8][9][10][11][12] that the elongated inclusions are the major contributors to mechanical anisotropy in steels. To diminish the anisotropy, changing the material composition chemistry (decreasing the sulphur content) and also changing the shape of inclusions from elongated to more globular (for example with calciumtreating techniques) are strongly recommended.…”

Section: Introductionmentioning

confidence: 99%

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Mechanical anisotropy in Ca-treated and ultra-low sulphur HSLA-100 steel

Abyazi

Ebrahimi

2016

Materials Science and Technology

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A few elongated MnS inclusions were observed in ultra-low sulphur HSLA-100 steel which significantly decreased the yield strength (YS), ultimate tensile strength and notch toughness of short transverse direction. The slight anisotropies of YS (≈5 MPa) and notch toughness (≈15 J) between longitudinal and transverse directions are correlated to the presence of texture components in the vicinity of {113}<110> and {554}<225>. In the case of anisotropy between longitudinal and short transverse directions, it is found that recognising the contribution of each effective factor in the creation of strength anisotropy is not possible. However, the most primary effective factor in the creation of remarkable notch toughness anisotropy (≈70 Pct), especially at −85°C, is related to the existence of elongated MnS inclusions.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanical anisotropy in Ca-treated and ultra-low sulphur HSLA-100 steel

Abyazi

Ebrahimi

2016

Materials Science and Technology

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“…It is important to note also that the sulphides may not be uniformly distributed within the steel in which case correlations of properties with the average concentration become less certain. 36) Nonmetallic inclusions influence properties by nucleating cleavage or voids. It is often the case that the inclusions serve to concentrate stress so that adjacent, and more brittle cementite particles can initiate cleavage.…”

Section: )mentioning

confidence: 99%

Mechanical Anisotropy in Steels for Pipelines

2013

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There has been a huge expansion in the laying of pipelines for the transmission of fossil fuels over large distances and in dire environments. Large diameter pipes can be manufactured by welding spirals of hotrolled linepipe steels. This process has a cost advantage relative to one in which the steel is seam welded after bending into a tubular shape. However, one particular problem associated with the steels used to fabricate the pipes is that of the anisotropy of mechanical properties, especially the toughness. Even though properties such as the Charpy toughness and strength meet minimum specifications, the existence of orientation dependence can compromise, for example, the stability of the pipe to buckling. There is, therefore, a large international activity on understanding the anisotropy of pipeline steels. This review represents an attempt to critically assess the steels and the orientation dependence of their mechanical properties, with the aim of establishing a basis for further progress.

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The influence of property anisotropy on the technological effectiveness of weldable steels

Cited by 2 publications

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Mechanical anisotropy in Ca-treated and ultra-low sulphur HSLA-100 steel

Mechanical anisotropy in Ca-treated and ultra-low sulphur HSLA-100 steel

Mechanical Anisotropy in Steels for Pipelines

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