Investigation of the Processes of Formation and Properties of Titanium Nickelides Welded on Titanium

• Published in: Metal science and heat treatment Vol. 65; no. 7-8; pp. 501 - 505
• Main Authors: Kovtunov, A. I., Khokhlov, Yu. Yu, El’tsov, V. V., Vershinin, L. V.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-11-2023; Springer; Springer Nature B.V
• Subjects: Argon; Characterization and Evaluation of Materials; Chemical composition; Chemistry and Materials Science; Classical Mechanics; Engineering Thermodynamics; Gas tungsten arc welding; Hardness; Heat and Mass Transfer; Intermetallic compounds; Liquid metals; Materials Science; Metallic Materials; Nickel alloys; Nickel base alloys; Nickel compounds; Nickel products; Nickel titanides; Phase composition; Surface layers; Titanium; Titanium compounds; Tribology; Wear resistance; Welding; Welding parameters; titanium nickelides; phase composition; microstructure; argon arc welding-on; nitinol; wear resistance
• ISSN: 0026-0673; 1573-8973
• DOI: 10.1007/s11041-023-00961-8

The process of argon arc welding of nickel onto titanium with a nonconsumable electrode with feeding of the nickel filler wire into the liquid metal pool is investigated. The influence of the welding modes on the geometrical parameters of the bead and on the susceptibility of the forming surface layer to crack formation is described. The effect of the welding modes on the chemical and phase compositions of the formed surface layer of titanium nickelide is determined. The chemical and phase compositions of the welded-on layer are shown to affect its hardness and wear resistance.