RT journal article
T1 Residual stress evaluation in API 5L X65 girth welded pipes joined by friction welding and gas tungsten arc welding
A1 Pereira de Moraes, Carlos Alexandre
A1 Chludzinski, Mariane
A1 Menezes Nunes, Rafael
A1 Vieira Braga Lemos, Guilherme
A1 Reguly, Afonso
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Residual stress
K1 X-ray diffraction
K1 API 5L X65
K1 Friction welding
K1 Gas tungsten arc welding
AB The present study compared the residual stress states in friction welded pipes of API 5L X65 to those achieved by gas tungsten arc welding (GTAW). X-ray diffraction (XRD) was used to assess residual stresses. In addition, microstructural and microhardness were analyzed for both welding processes. As expected, results showed that each welding method led to different residual stress states. The friction technology led to coarser microstructure, increased microhardness and lower residual stress states at the weld centreline. On the other hand, fusion welding was responsible for higher heterogeneity microhardness at the weld centerline, greater residual stress distributions and porosity formation in the joint cross section.
PB Elsevier
SN 2238-7854
YR 2019
FD 2019
LK http://hdl.handle.net/10498/38757
UL http://hdl.handle.net/10498/38757
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 10-nov-2026