Structure Formation and Nonmetallic Inclusions in Welded Joints when Welding Steel X65 by STT+API Technology

Elenam M. Fedoseeva; Tatiana V. Olshanskaya

doi:10.4028/www.scientific.net/MSF.893.229

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HomeMaterials Science ForumMaterials Science Forum Vol. 893Structure Formation and Nonmetallic Inclusions in...

Structure Formation and Nonmetallic Inclusions in Welded Joints when Welding Steel X65 by STT+API Technology

Abstract:

In work the analysis of influence of structurization and nonmetallic inclusions on regularity of change of growth rate of a fatigue crack in different zones of a welded seam of steel X65 is carried out. Welded seams of the pipelines received by a combined method of welding of STT+API were investigated. Growth rate of a fatigue crack low in a root of the seam received when welding in the way STT. On border of the fatigue crack passing in the filling layers of a welded seam the inclusions which are settling down chains on borders of grains are found, being concentrators of tension.

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Periodical:

Materials Science Forum (Volume 893)

Pages:

229-233

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.893.229

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Online since:

March 2017

Authors:

Elenam M. Fedoseeva*, Tatiana V. Olshanskaya

Keywords:

Crack, Fatigue Test, Hardness, Method of Welding, Microstructure, Non-Metallic Inclusions, Seam Defects, Toughness, Weld Metal

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References

[1] Wang B., Li X., Zhou J., 2011. Strain analysis of buried steel pipelines across strike-slip faults. J. Cent. South Univ. Technol. State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology.

DOI: 10.1007/s11771-011-0885-1

Google Scholar

[2] Lukyanov VF, Tkachenko VJ, Skrebtsov AM et al., 1983. Welding production. 6, 9-11.

Google Scholar

[3] Andrews K. W., 1972. Stress fields around inclusions and their relation to mechanical properties. JISI. V. 210, 246-253.

Google Scholar

[4] Tao L., Shinichi S., 2013. Morphology of Nonmetallic-inclusion Clusters Observed in Molten Metal by X-ray Micro-CT. ISIJ International. Shoji Taniguchi Kentaro Uesugi Shunsuke Narita. 01. 53(11-11), 1943-(1952).

DOI: 10.2355/isijinternational.53.1943

Google Scholar

[5] Dub A.V., 2003. Nonmetallic inclusions in the low-alloyed pipe steel. Metallurgist. 4, 67-73.

Google Scholar

[6] Fedoseeva E.M., Ignatov M. N., Letyagin I. Yu., 2011. Influence of a repeated thermal cycle of welding on formation of nonmetallic inclusions in multilayered welded seams pipe the staly. Welding and Diagnostics. 2, 18-21.

Google Scholar

[7] Oliver W C., 1992. An Improved Technique for Determining Hardness and Elastic Modulus Using Load and Displacement Sensing Indentation. J. Mater. Res. 7, 1564.

DOI: 10.1557/jmr.1992.1564

Google Scholar