Special features of the formation of the structure of rotational friction welded joints in VZh175 creep-resisting wrought nickel alloy

ABSTRACT

The finite element method is used to construct the model for the determination of the temperature fields and strains in the welded joint zones. The effect of the welding conditions in the structure and mechanical properties of the welded joints is investigated. The mechanism of formation of the welded joint in the rotational friction welding of VZh175 nickel alloy is described.

KEYWORDS:

• continuous drive friction welding
• finite element method
• welding deformation
• welding temperature
• dynamic recrystallization
• dynamic recovery
• nickel superalloy