Residual stress distributions in laser and gas metal-arc welded high-strength steel plates

Wei Guo; John Francis; Lin Li; Anastasia Vasileiou; Dave Crowther; Alan Thompson

doi:10.1080/02670836.2016.1175687

Residual stress distributions in laser and gas metal-arc welded high-strength steel plates

Wei Guo, John Francis, Lin Li, Anastasia Vasileiou, Dave Crowther, Alan Thompson

Tata Steel

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Abstract

S700 is a high-strength steel recently developed by Tata Steel. This paper describes the residual stress distributions in a multi-pass gas-metal-arc weld (GMAW), a single pass autogenous laser weld (ALW) and a multi-pass ultra-narrow gap laser weld (NGLW) in 13 mm thick high-strength (S700) steel plates, as measured by X-ray diffraction and the contour method. The relationships between microstructural variation and residual stress distributions were investigated. It was found that solid-sate phase transformations from austenite to ferrite, bainite and martensite changed both the magnitude and distribution of residual stresses in the three different welded specimens. The width of the regions sustaining tensile stress in each specimen decreased in the following order: GMAW > ALW > ultra-NGLW.

Original language	English
Pages (from-to)	1449-1461
Number of pages	13
Journal	Materials Science and Technology
Volume	32
Issue number	14
DOIs	https://doi.org/10.1080/02670836.2016.1175687
Publication status	Published - 27 Jun 2016

Keywords

As welded condition
Bainite
Hardness
Martensite
Solid-state phase transformation
2G welding position

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10.1080/02670836.2016.1175687

Author Accepted ManuscriptAccepted author manuscript, 6.53 MB

http://www.tandfonline.com/doi/full/10.1080/02670836.2016.1175687

LPRC: Laser Processing Research Centre Impact
Allegre, O., Crosby, D., Domingos, M., Francis, J., Gillen, D., Guo, W., Li, L., Mativenga, P., Rogers, B. D., Whitehead, D., Wilson, D., Zhong, S., Mirhosseini, N., Ouyang, J., Huang, Y., Wei, C., Cheng, D., Suryo Pratomo, E., Zhang, Z., Li, Z., Mo, H., Zhu, M., Li, Q., Liu, W., Wang, L., Guo, H., Heinemann, R. & Liu, Z.
1/04/00 → …
Project: Research

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title = "Residual stress distributions in laser and gas metal-arc welded high-strength steel plates",

abstract = "S700 is a high-strength steel recently developed by Tata Steel. This paper describes the residual stress distributions in a multi-pass gas-metal-arc weld (GMAW), a single pass autogenous laser weld (ALW) and a multi-pass ultra-narrow gap laser weld (NGLW) in 13 mm thick high-strength (S700) steel plates, as measured by X-ray diffraction and the contour method. The relationships between microstructural variation and residual stress distributions were investigated. It was found that solid-sate phase transformations from austenite to ferrite, bainite and martensite changed both the magnitude and distribution of residual stresses in the three different welded specimens. The width of the regions sustaining tensile stress in each specimen decreased in the following order: GMAW > ALW > ultra-NGLW.",

keywords = "As welded condition, Bainite, Hardness, Martensite, Solid-state phase transformation, 2G welding position",

author = "Wei Guo and John Francis and Lin Li and Anastasia Vasileiou and Dave Crowther and Alan Thompson",

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doi = "10.1080/02670836.2016.1175687",

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T1 - Residual stress distributions in laser and gas metal-arc welded high-strength steel plates

AU - Guo, Wei

AU - Francis, John

AU - Li, Lin

AU - Vasileiou, Anastasia

AU - Crowther, Dave

AU - Thompson, Alan

PY - 2016/6/27

Y1 - 2016/6/27

N2 - S700 is a high-strength steel recently developed by Tata Steel. This paper describes the residual stress distributions in a multi-pass gas-metal-arc weld (GMAW), a single pass autogenous laser weld (ALW) and a multi-pass ultra-narrow gap laser weld (NGLW) in 13 mm thick high-strength (S700) steel plates, as measured by X-ray diffraction and the contour method. The relationships between microstructural variation and residual stress distributions were investigated. It was found that solid-sate phase transformations from austenite to ferrite, bainite and martensite changed both the magnitude and distribution of residual stresses in the three different welded specimens. The width of the regions sustaining tensile stress in each specimen decreased in the following order: GMAW > ALW > ultra-NGLW.

AB - S700 is a high-strength steel recently developed by Tata Steel. This paper describes the residual stress distributions in a multi-pass gas-metal-arc weld (GMAW), a single pass autogenous laser weld (ALW) and a multi-pass ultra-narrow gap laser weld (NGLW) in 13 mm thick high-strength (S700) steel plates, as measured by X-ray diffraction and the contour method. The relationships between microstructural variation and residual stress distributions were investigated. It was found that solid-sate phase transformations from austenite to ferrite, bainite and martensite changed both the magnitude and distribution of residual stresses in the three different welded specimens. The width of the regions sustaining tensile stress in each specimen decreased in the following order: GMAW > ALW > ultra-NGLW.

KW - As welded condition

KW - Bainite

KW - Hardness

KW - Martensite

KW - Solid-state phase transformation

KW - 2G welding position

U2 - 10.1080/02670836.2016.1175687

DO - 10.1080/02670836.2016.1175687

M3 - Article

VL - 32

SP - 1449

EP - 1461

JO - Materials Science and Technology

JF - Materials Science and Technology

SN - 0267-0836

IS - 14

ER -

Residual stress distributions in laser and gas metal-arc welded high-strength steel plates

Abstract

Keywords

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LPRC: Laser Processing Research Centre Impact

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