Manufacturing an upset end by friction welding in an API X65 steel

Lemos, Guilherme Vieira Braga; Buzzatti, Diogo Trento; Amavisca, Carla; Dalpiaz, Giovani; Paes, Marcelo Torres Piza; Kanan, Luis Fernando; Reguly, Afonso

doi:10.4322/2176-1523.20202452

Cited by 1 publication

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“…22 The practicality of RFW tube-to-tube welding for deepwater and ultradeepwater oil and gas exploitation applications exhibited a good top appearance and high fatigue life. 23 Few researchers investigated the feasibility of fusion welding various pipes and discovered that common issues such as hydrogen embrittlement and high tensile residual stress in HAZ have an impact on pipe joint strength. 24 The disadvantages of fusion welding of DSSs can be solved by solid-state welding processes such as friction welding, according to a critical evaluation of literature.…”

Section: Introductionmentioning

confidence: 99%

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Surface morphology and experimental investigation on joint characteristics of solid-state welded duplex stainless steel tubes

Madhappan,

Ponnusamy Kumaraswamy,

Munusamy

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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The aim of this work was to systematically find the optimum parameter combination using the response surface methodology (RSM) technique for welding of UNS S31803 tubes and to find the effect of parameters on mechanical and metallurgical properties. In the present work, the experimental investigations of friction-welded UNS S31803 tube joints are discussed in detail with characterization, radiography, and corrosion studies. The most important parameter that has the greatest impact on the tensile strength of the joints is the upset pressure, which is followed by heating time, heating pressure, and upset time. As the upset pressure and time increased, the joint strength also increased. The radiographic evaluation of the weldments revealed no significant flaws at the weld contact. In comparison to the parent metal zone, the microstructure indicated coarse grain structure in the weld metal zone, with grain orientation changing with upset time. For the optimal parameter combination, the austenite phase is primarily spread in the weld metal zone. In comparison to the partially deformed zone and the parent metal zone, the weld zone had lower hardness values. In the high strength and optimum parameter joints, fractography investigation revealed ductile failure.

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Section: Introductionmentioning

confidence: 99%

“…22 The practicality of RFW tube-to-tube welding for deepwater and ultra-deepwater oil and gas exploitation applications exhibited a good top appearance and high fatigue life. 23…”

Section: Introductionmentioning

confidence: 99%