... Corresponding author. e-mail:  txzou@sjtu.edu.cn 29 01 2023 14 05 2023 14 06 2023 UOE forming process robust optimization X80 pipeline steel properties variation and inhomogeneity Recently, oil pipes have been developed toward high strength, large diameter and thin wall...

... above: (1) The fiber laser-MAG hybrid welding process can obtain sound welded joints in five different positions with high-strength, toughness, and ductility, with potential to be used for welding X80 pipeline steel under appropriate welding parameters. (2) Despite some slight difference...