Blunt notch effect on the fatigue response up to 10<sup>9</sup> cycles of selective laser melting Ti6Al4V specimens-Reference-Cited by-同舟云学术

Blunt notch effect on the fatigue response up to 10⁹ cycles of selective laser melting Ti6Al4V specimens

Published:2023-06-24 Issue:9 Volume:46 Page:3417-3428
ISSN:8756-758X
Container-title:Fatigue & Fracture of Engineering Materials & Structures
language:en
Short-container-title:Fatigue Fract Eng Mat Struct

Author:

Tridello Andrea¹^ORCID,Boursier Niutta Carlo¹^ORCID,Berto Filippo²^ORCID,Paolino Davide S.¹^ORCID

Affiliation:

1. Department of Mechanical and Aerospace Engineering Politecnico di Torino Turin Italy

2. Department of Chemical Engineering, Materials and Environment Università La Sapienza Rome Italy

Abstract

AbstractIn this paper, the influence of a blunt notch on the VHCF response of SLM Ti6Al4V specimens is investigated. Ultrasonic fully reversed tension–compression tests up to 109 cycles were carried out on unnotched specimens and specimens with a blunt notch. Unnotched specimens show a slightly larger fatigue response, with limited differences. All fatigue failures originated from defects, which are bigger in unnotched specimens, mainly due to the different risk volume of the tested specimens and the related size effect. Interactions between notch, stress gradient, and defect size distribution must be considered to properly assess the influence of notch on the VHCF response.

Publisher

Wiley

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1111/ffe.14078

Reference35 articles.

1. A survey on mechanisms and critical parameters on solidification of selective laser melting during fabrication of Ti-6Al-4V prosthetic acetabular cup

2. 3D-Printed Satellite Brackets: Materials, Manufacturing and Applications

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4. Defect characteristics and analysis of their variability in metal L-PBF additive manufacturing

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