Fatigue behavior of electron beam welded dissimilar metal joints
Welding Journal, vol.91, no.2, 2012 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 91 Issue: 2
- Publication Date: 2012
- Journal Name: Welding Journal
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Keywords: Dissimilar welds, Electron beam welding, Fatigue, Low-alloy steel, Stainless steel
- Isparta University of Applied Sciences Affiliated: No
Abstract
The fatigue performance of an electron-beam welded joint between AISI 4140 and AISI316L steel has been investigated. Results indicated that a good strength weld can be achieved between the two dissimilar steels by electron beam welding with a fatigue limit approaching 190 MPa, which is a value between the fatigue limits of the base materials. The sharper slope in the Wohler curve of the weld specimen was attributed to the presence of intergranular chromium carbide precipitates within the heat-affected zone.