Features of hybrid laser-arc welding of GTD-111 superalloy compared to laser beam weldingShow others and affiliations
2022 (English)In: Materials letters (General ed.), ISSN 0167-577X, E-ISSN 1873-4979, Vol. 309, article id 131384Article in journal (Refereed) Published
Abstract [en]
In order to influence the electric arc as a heat source on the welding pool created by the laser, hybrid laser-arc welding (HLAW) and laser beam welding (LBW) methods were utilized for the welding of GTD-111 superalloy. The results showed that the HLAW method, due to the creation of more heat input, provides the conditions for the exit of gaseous pores created in the weld metal. The electric arc, located 5 mm from the laser beam, re-melted the solidified grains in the keyhole and provided the conditions for nonhomogeneous nucleation of the equiaxed grains.
Place, publisher, year, edition, pages
Elsevier B.V. , 2022. Vol. 309, article id 131384
Keywords [en]
Electric arc welding; Electric arcs; Laser beams; Superalloys, Condition; Equi-axed grains; GTD-111; Heat input; Heat sources; Hybrid laser-arc welding; Non-homogeneous; Weld metal; Welding method; Welding pool, Textures
National Category
Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-17910DOI: 10.1016/j.matlet.2021.131384ISI: 000736672700008Scopus ID: 2-s2.0-85120406415OAI: oai:DiVA.org:hv-17910DiVA, id: diva2:1648216
2022-03-302022-03-302023-12-18Bibliographically approved