Microstructure and Properties of an X80 Pipeline Steel Manufactured by Untraditional TMCP

Deng, Wei; Gao, Xiuhua; Qin, Xiaomei; Zhao, Dewen; Du, Li

doi:10.1166/asl.2011.1341

Cited by 4 publications

(3 citation statements)

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“…Such combinations of TMCP with a variety of peripheral technologies will hopefully lead to the development of new steel properties. The further utilization of novel fine microstructure such as acicular ferrite [85,86], may enhance the properties, such as toughness and resistance to hydrogen-induced cracking, of HT steels. Although the market requirements for TMCP steels are diverse, as reviewed here, it is reasonable to conclude that TMCP can meet these requirements.…”

Section: Future Prospects For Tmcpmentioning

confidence: 99%

Progress in thermomechanical control of steel plates and their commercialization

Nishioka

Ichikawa

2012

Science and Technology of Advanced Materials

103

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The water-cooled thermomechanical control process (TMCP) is a technology for improving the strength and toughness of water-cooled steel plates, while allowing control of the microstructure, phase transformation and rolling. This review describes metallurgical aspects of the microalloying of steel, such as niobium addition, and discusses advantages of TMCP, for example, in terms of weldability, which is reduced upon alloying. Other covered topics include the development of equipment, distortions in steel plates, peripheral technologies such as steel making and casting, and theoretical modeling, as well as the history of property control in steel plate production and some early TMCP technologies. We provide some of the latest examples of applications of TMCP steel in various industries such as shipbuilding, offshore structures, building construction, bridges, pipelines, penstocks and cryogenic tanks. This review also introduces high heat-affected-zone toughness technologies, wherein the microstructure of steel is improved by the addition of fine particles of magnesium-containing sulfides and magnesium-or calcium-containing oxides. We demonstrate that thanks to ongoing developments TMCP has the potential to meet the ever-increasing demands of steel plates.

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Section: Future Prospects For Tmcpmentioning

confidence: 99%

Progress in thermomechanical control of steel plates and their commercialization

Nishioka

Ichikawa

2012

Science and Technology of Advanced Materials

103

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“…3 The characterisation of prototypes of X100 pipes has been extensively studied by pipe manufacturers. 7,[17][18][19] Further additions of Mo, Ni and B enable the strength level to be raised to that of grade X120 by the same processing method. 9 To enable the development of remote gas sources in the future, higher strength pipelines such as X100 and X120 will play very important roles in the pipe industry.…”

Section: Developments Of High Grade Pipeline Steelsmentioning

confidence: 99%

Challenges and developments in pipeline weldability and mechanical properties

Liu

Bhole

2013

Science and Technology of Welding and Joining

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Recent economic and political events have further highlighted the need for new and strategically accessible sources of oil and gas. With the continually increasing demand for oil and gas, the requirement for pipeline steels with higher strength, toughness and weldability has been one of the most important factors driving the development of high strength pipeline steels, particularly with the oil exploration proceeding into arctic and deep sea regions, enhancing the weldability and mechanical properties of the new pipeline steels and weld consumables. Developments in the welding processes for manufacture and field welding are described in terms of process principles, equipment, consumables, weld quality, process economics and further developments. The increasing and changing requirement for weldability and mechanical properties in the heat affected zone and weld metal of pipeline welds are presented along with the reported solutions to the problems.

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“…With the increasingly wide application of X80 pipeline steel in pipeline transportation, the manufacturing of steel has become an extremely crucial link [ 5 , 6 ]. Mohd NA et al, made a very systematic summary of the advantages and disadvantages of additive manufacturing technology [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Fatigue Properties of High-Strength Low-Alloy Steel Prepared through Submerged-Arc Additive Manufacturing

Chi

et al. 2022

Materials

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Submerged arc additive manufacturing (SAAM) is a viable technique for manufacturing large and complex specialized parts used in structural applications. At present, manufacturing high-strength low-alloy steel T-branch pipe through SAAM has not been reported. This paper uses this technology to manufacture low-alloy structural steel parts. The microstructures of the samples were characterized, which revealed that they were mainly composed of polygonal ferrites. The tensile properties in the horizontal and vertical directions of deposits were studied. Results show that the horizontal tensile strength of deposits was quite close to the vertical one, while the elongation rate in the vertical direction was obviously lower than that in the horizontal direction. Fatigue results indicate that the strain fatigue limit of high-strength low-alloy steel samples in vertical direction was 0.24%. The fatigue fractures of fatigue samples of deposits showed multi-source crack initiation characteristics and the crack propagation regions exhibited typical fatigue striations, so the final instantaneous fracture region showed a ductile fracture. Fatigue performance is very important for the safe service of structural parts, but there is a lack of relevant research on this additive manufacturing part. The results of this paper may support the popularization of the SAAM for high-strength low-alloy steel T-branch pipe.

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Microstructure and Properties of an X80 Pipeline Steel Manufactured by Untraditional TMCP

Cited by 4 publications

References 0 publications

Progress in thermomechanical control of steel plates and their commercialization

Progress in thermomechanical control of steel plates and their commercialization

Challenges and developments in pipeline weldability and mechanical properties

Microstructures and Fatigue Properties of High-Strength Low-Alloy Steel Prepared through Submerged-Arc Additive Manufacturing

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