AlCoCrFeNi2.1/GH4169 dissimilar welded joint

Tensile strength 869.9 MPa

Defect-free EB weld with nail-head geometry; tensile strength matches GH4169 base metal at optimized heat input of 114.0 J/mm.

Li, Shuai · Peifeng, Zhang · Xiaotong, Hou · Tong, Wu · Liu, Zhongying · Wang, Xingxing · He, Peng · Jinoop, Arackal Narayanan

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing 2025

Advantages

Tensile strength of 869.9 MPa at heat input of 114.0 J/mm

Equivalent to GH4169 nickel-based superalloy base material

Defect-free welds with nail-head geometry