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allied
academies
Journal of Materials Science and Nanotechnology | Volume: 2
August 20-21, 2018 | Paris, France
Materials Science and Materials Chemistry
International Conference on
Evaluation of fatigue properties of medium carbon low alloy forged steels quenched in polymer
Chandan B R, Ramesha C M
and
Prasanna N D
Ramaiah Institute of Technology, Bengaluru
M
edium carbon low alloy forged steels (EN 18, EN19, EN
24 and EN25) have been investigated with respect to
their fatigue properties for untreated (Forged) and polymer
quenched samples. For heat treatment, the solutionizing
temperatureof 855
0
Cwitha soakingperiodof 60min followed
by step tempering of 5750 and 2200 was used. Thereafter
quenching was carried out in a polymer (polyethylene glycol
10% & 30%) separately. Fatigue tests were carried out for
untreated and polymer quenched samples considering
the UTS values for various loads; the polymer quenched
samples being superior to untreated samples. Simulation of
fatigue analysis carried out using ANSYS and corroborated
the experimental results for the polymer quenched samples
loaded to 30% of UTS, also the specimens quenched
in poly ethylene glycol exhibited the best mechanical
properties. The heat-treated specimens had a structure of
fine tempered martensite with a small amount of ferrite.
e:
chandanbrmech@gmail.com