Influence of Case Hardening on Fatigue Resistance of Models of Hollow Shafts with Production Surface Defects

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F25797000%3A_____%2F11%3A%230000281" target="_blank" >RIV/25797000:_____/11:#0000281 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net/KEM.465.243" target="_blank" >http://www.scientific.net/KEM.465.243</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/KEM.465.243" target="_blank" >10.4028/www.scientific.net/KEM.465.243</a>

Result language

angličtina

Original language name

Influence of Case Hardening on Fatigue Resistance of Models of Hollow Shafts with Production Surface Defects

Original language description

This work analyses an influence of case hardening on fatigue resistance of models of hollow shafts which have a variable diameter ranging from 40 mm to 67 mm, wall thickness of 7 mm and production surface defects on an inner surface layer of the hollow shafts. Case hardened (on both sides) and non case hardened shafts were tested. Both types of shafts were made out of 16MnCrS5 (DIN) steel by cold reduction rolling and were subjected to a flat bending. Tests indicated that the fatigue resistance of the case hardened shafts was significantly higher. The main reason for the lower resistance of the non case hardened shafts was initiation of main cracks from the defects on inner surfaces. In case of the case hardened shafts the main cracks initiated from the notch on outer surfaces where macroscopic stress was maximal. Different mechanisms of the cracking are discussed from the point of view of compressive residual stresses in the case hardened layer.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

<a href="/en/project/1M06032" target="_blank" >1M06032: RESEARCH CENTRE OF FORMING TECHNOLOGY</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2011

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Key Engineering Materials

ISSN

1013-9826

e-ISSN

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Volume of the periodical

465

Issue of the periodical within the volume

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Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

243-246

UT code for WoS article

000291704700054

EID of the result in the Scopus database

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