Effect of bending-torsion on fracture and fatigue life for 18Ni300 steel specimens produced by SLM

2023-05-10 Hits:

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

Journal:Mechanics of Materials

Key Words:Multiaxial fatigue; Bending-torsion; Notch effect; Fatigue fracture; Surface topography

Abstract:In this study, different fracture surfaces caused by fatigue failure were generated from 18Ni300 steel produced by selective laser melting (SLM). Hollow round bars with a transverse hole were tested under bending-torsion to investigate the crack initiation mechanisms and fatigue life. Next, the post-failure fracture surfaces were examined by optical profilometer and scanning electron microscope. The focus is placed on the relationship between the fatigue features (e.g., bending-torsion ratio, fatigue crack initiation angles, and fatigue life) and the fracture surface topography parameters ...

All the Authors:Reza Masoudi Nejad,Shun-Peng Zhu,Jarosław Trembacz,Ricardo Branco,José D.M. Costa,José A.M. Fereira,Carlos Capela

Indexed by:Journal Paper

Correspondence Author:Wojciech Macek

Document Code:104576

Volume:178

Page Number:104576

ISSN No.:0167-6636

Translation or Not:no

Date of Publication:2023-01-25

Date of Publication:2023-01-25