Investigation of friction hydro-pillar processing as a repair technique for offshore mooring chain links
dc.contributor.author | Santos, Rafael Eugenio dos | pt_BR |
dc.contributor.author | Chludzinski, Mariane | pt_BR |
dc.contributor.author | Nunes, Rafael Menezes | pt_BR |
dc.contributor.author | Marinho, Ricardo Reppold | pt_BR |
dc.contributor.author | Paes, Marcelo Torres Piza | pt_BR |
dc.contributor.author | Reguly, Afonso | pt_BR |
dc.date.accessioned | 2024-01-10T03:36:31Z | pt_BR |
dc.date.issued | 2023 | pt_BR |
dc.identifier.issn | 2504-4494 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/270784 | pt_BR |
dc.description.abstract | Repairing links of offshore mooring chains has presented a significant industry challenge, primarily arising from modifications in material properties, encompassing alterations in microstructure, hardness, and residual stress. In this context, the present work investigates the method of friction hydro-pillar processing (FHPP) applied to R4 grade mooring chain steel. Joints in as-repaired and post-weld heat treatment (PWHT) conditions were subjected to residual stress (RS) tests using the neutron diffraction technique, microhardness mapping, and microstructural evaluations. The process generated peaks of tensile and compressive stresses in different directions and hardness below that of the parent material in the softening zone. The friction zone promoted high hardness levels in the thermo-mechanically affected zone (TMAZ) with a maximum of 19% of the ultimate tensile strength of the parent material. As expected, the PWHT restored the RS and reduced the hardness; however, 4 h PWHT allowed the elimination of a hardness higher than that of the base material. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Journal of Manufacturing and Materials Processing. Basel. Vol. 7, no. 6 (2023), art. 200, p. 1-13 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Friction hydro-pillar processing | en |
dc.subject | Resistência dos materiais | pt_BR |
dc.subject | Mooring steel grade R4 | en |
dc.subject | Corrente de amarra | pt_BR |
dc.subject | Fricção | pt_BR |
dc.subject | PWHT | en |
dc.subject | Residual stress | en |
dc.subject | Neutron diffraction | en |
dc.title | Investigation of friction hydro-pillar processing as a repair technique for offshore mooring chain links | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001188459 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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