Study of the Rotary Bending Fatigue Resistance of 30MnB5, 41CrS4 and 30MnVS6 Steels

In this study, a comparative analysis of the fatigue behavior of four types of steels, three of quenching and tempering (30MnB5 subjected to two different heat treatments and 41CrS4) and one microalloyed (30MnVS6), was carried out. The objective of the study is to determine if it is feasible to repl...

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Bibliographic Details
Published in:Applied sciences 2022-03, Vol.12 (5), p.2369
Main Authors: García-Diez, Ana Isabel, Galán-Díaz, Juan José, Graña-López, Manuel Ángel, Toledano-Prados, Mar
Format: Article
Language:English
Subjects:
Automobile industry
Basquin method
Bending fatigue
Boron
Carbon
Chromium
Chromium steel
Chromium steels
Comparative analysis
Cooling
Cost control
Fatigue
Fatigue limit
Fatigue strength
Fatigue tests
Heat treatment
Heat treatments
Manufacturing
Market positioning
maximum likelihood method
Mechanical properties
Metal fatigue
microalloyed steels
Microalloying
Molybdenum
Precipitation hardening
Quenching and tempering
quenching and tempering steels
Roll bending
rotary bending fatigue
Steel
Steel alloys
Sulfur content
Tempering
Useful life
Vehicles
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Summary:In this study, a comparative analysis of the fatigue behavior of four types of steels, three of quenching and tempering (30MnB5 subjected to two different heat treatments and 41CrS4) and one microalloyed (30MnVS6), was carried out. The objective of the study is to determine if it is feasible to replace the quenching and tempering steel traditionally used in the manufacture of commercial vehicle axles (30MnB5) with alternative ones with the same composition but with modifications in their microstructure that improve their mechanical properties; a quenched and tempered chromium steel (41CrS4) and one that is microalloyed (30MnVS6). For this, rotary-bending fatigue tests have been carried out on the four types of steels with different stress levels. The fatigue resistance of quenched and tempered steels and microalloyed steel was evaluated using the fit of Basquin’s experimental data. Where possible, the fatigue limit was determined using the maximum likelihood method. It was concluded that, in general, the fatigue resistance of chromium-alloyed steel is higher than that of the reference steel, while the rest have lower fatigue resistance. On the other hand, it was determined that the fatigue limit of microalloyed steel is higher than the reference one and that of the reference steel is higher than that of the other two steels.
ISSN:2076-3417
2076-3417
DOI:10.3390/app12052369