Influence of heat input and heat exchange coefficient on temperature and stress field of a X80 steel pipeline repair-weld root pass of a type-B sleeve
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Lei Guo
Lei Guo, worked in the Pipe China West East Gas Pipeline Company, China. Currently, he is a senior engineer and have published dozens of papers on oil and gas storage and transportation project.
Mingchang Wu, worked in the PipeChina West East Gas Pipeline Company, China. Currently, he is an engineer.
Yan Xu, worked in CNPC Tubular Goods Research Institute, China. Currently, he has published more than ten papers on hot processing of bend pipe and in-service welding.
Leilei Wang, worked in the PipeChina West East Gas Pipeline Company, China. Currently, he is an engineer.
Yongxin Lu, worked in the School of Materials Science and Engineering, Xi’an Shiyou University, China. Currently, he is an associate professor, and his main research areas are control and simulation of welding deformation and friction stir welding.
Abstract
The formation of the type-B sleeve repaisring root pass seriously affects the quality of in-service repair of B-type sleeve. Therefore, it is necessary to systematically study the temperature field, stress field, and deformation field of type-B sleeve repairing root pass. In this paper, a double ellipsoid heat source model is developed to investigate the weld temperature, residual stress, and deformation field characteristics in the type-B sleeve repairing root pass. The results show that the heat exchange coefficient of the inner wall of the pipeline has a relatively small impact on the penetration depth, residual stress, and deformation of type-B sleeve repairing root pass, and the weld heat input has a significant impact on the penetration depth, residual stress, and deformation of type-B sleeve repairing root pass. In a whole, when the heat input of the repairing root pass is around 0.9 KJ mm−1, a well-formed repairing root pass with moderate residual stress and minimal deformation can be obtained.
Funding source: National Pipe Network Scientific Research and Technology Development Project (Research on failure mechanism for girth weld of high steel pipeline)
Award Identifier / Grant number: NO. WZXGL202105
About the authors
Lei Guo, worked in the Pipe China West East Gas Pipeline Company, China. Currently, he is a senior engineer and have published dozens of papers on oil and gas storage and transportation project.
Mingchang Wu, worked in the PipeChina West East Gas Pipeline Company, China. Currently, he is an engineer.
Yan Xu, worked in CNPC Tubular Goods Research Institute, China. Currently, he has published more than ten papers on hot processing of bend pipe and in-service welding.
Leilei Wang, worked in the PipeChina West East Gas Pipeline Company, China. Currently, he is an engineer.
Yongxin Lu, worked in the School of Materials Science and Engineering, Xi’an Shiyou University, China. Currently, he is an associate professor, and his main research areas are control and simulation of welding deformation and friction stir welding.
Acknowledgments
The authors thank the referees of this study for their valuable and very helpful comments.
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Research ethics: Not applicable.
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Informed consent: Not applicable.
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Author contributions: Lei Guo and Mingchang Wu-Investigate, Yan Xu, Leilei Wang-original draft preparation, Fengping Yang, Qiang Bai, Zhenjun Feng-Writing-review and editing, Yongxin Lu-original draft preparation.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors state no conflict of interest.
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Research funding: National Pipe Network Scientific Research and Technology Development Project (Research on failure mechanism for girth weld of high steel pipeline, NO. WZXGL202105).
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Data availability: The raw data can be obtained on request from the corresponding author.
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© 2025 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Influence of heat input and heat exchange coefficient on temperature and stress field of a X80 steel pipeline repair-weld root pass of a type-B sleeve
- Optimization of stress-relief heat treatment for overlay weld repair of severely used rail tracks: effects on residual stress, microstructure and wear resistance
- Investigation on the axial distribution of micron inclusions and their influence on mechanical properties in a wind power spindle
- Influence of aerogel powder on the mechanical and stability properties of photocurable resin composites produced by stereolithography (SLA)
- Effect of sandblasting and aging on structural and mechanical properties of Inconel 625 coated steels for marine applications
- Mechanical characterization of sandwich composite structures with Alumix231 foam core between Al2024/B4C composite plates
- Optimization of alkali modified breadfruit peel flour-LDPE composite for car mirror casings
- Influence of seawater condition on shear strength of CFRP single lap bonded joints with various fiber orientation
- Comparative analysis of cutting methods and their impact on fatigue properties of armor steel
- Effect of pore structure, mechanical performance, and operational temperature on damping behavior of thermal expandible rubber-based adhesives
- Structural and electrical properties of CuO-doped NaNbO3 ceramics
- Friction and wear behavior of alkali-treated corn husk fiber reinforced polyester composites
- Performance of high strength natural fiber reinforced hybrid composites for structural engineering applications
- Fabrication and wear performance of M7C3 carbide reinforced epoxy composites
- Mosaic ceramic surface defect detection enhancement algorithm based on guided filter and multi-scale fusion
Artikel in diesem Heft
- Frontmatter
- Influence of heat input and heat exchange coefficient on temperature and stress field of a X80 steel pipeline repair-weld root pass of a type-B sleeve
- Optimization of stress-relief heat treatment for overlay weld repair of severely used rail tracks: effects on residual stress, microstructure and wear resistance
- Investigation on the axial distribution of micron inclusions and their influence on mechanical properties in a wind power spindle
- Influence of aerogel powder on the mechanical and stability properties of photocurable resin composites produced by stereolithography (SLA)
- Effect of sandblasting and aging on structural and mechanical properties of Inconel 625 coated steels for marine applications
- Mechanical characterization of sandwich composite structures with Alumix231 foam core between Al2024/B4C composite plates
- Optimization of alkali modified breadfruit peel flour-LDPE composite for car mirror casings
- Influence of seawater condition on shear strength of CFRP single lap bonded joints with various fiber orientation
- Comparative analysis of cutting methods and their impact on fatigue properties of armor steel
- Effect of pore structure, mechanical performance, and operational temperature on damping behavior of thermal expandible rubber-based adhesives
- Structural and electrical properties of CuO-doped NaNbO3 ceramics
- Friction and wear behavior of alkali-treated corn husk fiber reinforced polyester composites
- Performance of high strength natural fiber reinforced hybrid composites for structural engineering applications
- Fabrication and wear performance of M7C3 carbide reinforced epoxy composites
- Mosaic ceramic surface defect detection enhancement algorithm based on guided filter and multi-scale fusion
