A Comparative Evaluation of Friction-Welded and Brazed Ti and AISI 321 Stainless Steel Joints

Seung Wook Baek; Won Bae Lee; Ja Myeong Koo; Chang Yong Lee; Seung Boo Jung

doi:10.4028/www.scientific.net/MSF.580-582.423

Paper Titles

Linear Friction Welding of Ti-6Al-4V Alloy: Microstructure Characterization
p.405

Liquid Penetration Induced Cracking in Mg-Alloy Spot Welds
p.409

The Failure Strength Evaluation on Resistance Welding Mixed Adhesive Bonding
p.413

Residual Stress Relief and Redistribution of Welded Metals by Vibratory Stress Relaxation
p.419

A Comparative Evaluation of Friction-Welded and Brazed Ti and AISI 321 Stainless Steel Joints
p.423

Real-Time Detection and Control of Torch-Height in Waveform Controlled Short-Circuit CO₂ Arc Welding
p.427

A Study on the Angular Distortion Control for the Multi-Pass Butt Weldment of STS 316LN
p.431

Mechanical and Microstructural Properties of Friction Spot Joined 5052 and 6111 Al Alloys
p.435

Computer Simulation of Residual Stresses in Welding Process Using Finite Element Method
p.439

HomeMaterials Science ForumMaterials Science Forum Vols. 580-582A Comparative Evaluation of Friction-Welded and...

A Comparative Evaluation of Friction-Welded and Brazed Ti and AISI 321 Stainless Steel Joints

Abstract:

Microstructure and mechanical properties of friction welded and vacuum brazed Ti/AISI 321 stainless steel have been evaluated with various welding conditions. Maximum tensile strength of friction welded joints was approximately 420 MPa with the conditions of 400 MPa of upset pressure (P2) and friction time (t1) within 2.0 s. Maximum tensile strength of brazed joints was acquired under the condition of 900 °C brazing temperature and 5 min. brazing time and showed approximately 275MPa which was about 80% of that of the Ti base metal. Friction welded Ti/AISI 321 joints showed the superior tensile strength than that of brazed Ti/AISI 321 due to thinner intermetallic compound layer.