Effects of Surface Treatments on the Fatigue Response of High Strength Fasteners-Reference-Cited by-同舟云学术

Effects of Surface Treatments on the Fatigue Response of High Strength Fasteners

Published:2019-07 Issue: Volume:813 Page:352-357
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Reggiani Barbara¹,Olmi Giorgio²,Orazi Leonardo¹^ORCID,Tomesani Luca²,Fini Stefano²,Barozzi Lorenzo³,Pelaccia Riccardo¹,Bandini Michele⁴

Affiliation:

1. University of Modena and Reggio Emilia

2. University of Bologna

3. Vimi Fasteners SpA

4. Peen Service s.r.l

Abstract

The aim of the present work was the assessment of the impact of deep-rolling and shot-peening performed in the underhead and in the unthreaded shank of two high strength screws (36 NiCrMo and 42 CrMoV) for fatigue life enhancement. The experimental campaign consisted of six combinations, including the non-treated state. The aforementioned treatments were evaluated alone or with shot-peening performed after deep-rolling in the underhead fillet of the screws. Deep rolling was carried out at the optimal rolling force, whereas two shot diameters were considered for shot-peening (Z100 and UFS70). The results have been evaluated in terms of fatigue limits and factor effects have been assessed by marginal mean plots.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.813.352.pdf

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