Laser Welding ATI 425® Alloy

Paul Edwards; Todd Morton; Gregory L. Ramsey

doi:10.4028/www.scientific.net/KEM.436.205

Paper Titles

Reaction Assisted Ultrasonic Consolidated TiNi
p.149

Titanium and Titanium Alloy via Sintering of TiH₂
p.157

Structure Formation during Preparation of Variable Porosity Titanium Foams by Solid State Replication
p.165

Microstructure and Mechanical Properties of α’ Martensite Type Ti-V-Al Alloy after Cold- or Hot Working Process
p.171

Effect of Oxygen on Phase Precipitation and Mechanical Functionality in Ti-29Nb-13Ta-4.6Zr
p.179

Application of Local Rapid Heat Treatment for Improvement of Microstructure and Mechanical Properties of Titanium Products
p.185

Characterization of the Microstructure, Tensile and Creep Behavior of Powder Metallurgy Processed and Rolled Ti-6Al-4V-1B Alloy
p.195

Laser Welding ATI 425® Alloy
p.205

Mechanical Performance of Heat Treated Ti-6Al-4V Friction Stir Welds
p.213

HomeKey Engineering MaterialsKey Engineering Materials Vol. 436Laser Welding ATI 425® Alloy

Laser Welding ATI 425® Alloy

Abstract:

Laser Beam Welding of ATI 425® Alloy was performed on 2.5 mm thick butt joints. This new alloy could be used in place of standard Ti-6Al-4V for a variety of lower-cost structural solutions. Demonstration of its fusion weldability with laser welding is of particular interest because it is a near-net- shape process, capable of high welding speeds, which will further enable lower cost manufacturing options. It was found that ATI 425® Alloy could be successfully welded using a fiber laser at speeds over 3 m/min. Microstructural, microhardness and tensile property evaluations were performed on the resulting welds. It was found that there was a 15% hardness increase in the weld and the strength of the joints was within 2% of base metal properties.