Fatigue life improvement using low transformation temperature weld material with measurement of residual stress

2022-07-16 Hits:

Affiliation of Author(s):University of Electronic Science and Technology of China

Place of Publication:International Journal of Fatigue

Key Words:Residual stress; Fatigue life; Heat affected zone; Low transformation temperature; Scanning electron

Abstract:Welding processes often produce high levels of tensile residual stress. Low transformation temperature (LTT) welding wires utilise phase transformation strains to overcome the thermal contraction of a cooling weld. In this paper, the residual stress within each weld was quantified using the milling/strain gauge method, being the strain change measured as the weldment was milled away. The fatigue tests were conducted under uniaxial loading considering two types of LTT materials. The results show that the crack propagation of all samples was similar in cycles although both LTT materials...

All the Authors:Pedram Zamani,Reza Masoudi Nejad,Wojciech Macek,Ricardo Branco

First Author:Jordan Franks

Indexed by:Journal Paper

Correspondence Author:Greg Wheatley,Farzaneh Samadi

Document Code:107137

Discipline:Engineering

First-Level Discipline:Mechanical engineering

Volume:164

Page Number:107137

ISSN No.:0142-1123

Translation or Not:no

Date of Publication:2022-07-14

Date of Publication:2022-07-14