Fatigue life analysis of die forged railway axle manufactured from C30 steel
Journal Title: Materials Engineering - Materialove inzinierstvo (MEMI) - Year 2014, Vol 21, Issue 3
Abstract
With respect to the manufacturing process, different parts of one structural component can have different fatigue properties. In this study, the fatigue life of a railway axle manufactured from C30 steel by die forging is evaluated in the part of the axle bolster and axle body. According to the fatigue test results obtained at high frequency tension - compression fatigue tests (f ≈ 20 kHz, R = -1, T = 20 ± 5 °C), due to the higher level of work hardening of the axle bolster, the fatigue strength of material in this part is significantly higher than in the axle body. Different fatigue strength of these parts were observed despite the fact, that results of static tensile tests did not proved any important differences in the ultimate tensile strength, yield point and elongation.
Authors and Affiliations
Libor Trsko, Otakar Bokuvka, Frantisek Novy, Branislav Hadzima
Keywords
Related Articles
- EP ID EP142796
- DOI -
- Views 124
- Downloads 0
INFLUENCE OF GRAIN SIZE ON DUCTILITY OF MAGNESIUM ALLOYS
The paper give a brief overview on the effect of grain size on the yield strength and the elongation to fracture (ductility) of magnesium alloys. The yield stress, flow stress and fracture stress decrese with decreasing...
INTERNAL FRICTION USE IN MONITORING THE DEGRADATION PROCESSES IN A MATERIAL
During the measurement of the fatigue life of material, the specimen undergoes large number of stress cycles. While the observed number of cycles before failure is considered to be the most important result (often the on...
[sub][/sub][sub][/sub]PROPERTIES OF PLASMA AND HVOF SPRAYED COATINGS
The article compares the properties of plasma and HVOF thermally sprayed coatings obtained by blending the NiCrBSi and Fe2O3 powders. The deposition was performed by means of the Plancer PN-120 and the Diamond Jet guns f...
34CrMo4 steel resistance against the SSC after controlled cooling process
The sulphide stress cracking corrosion resistance of 34CrMo4 steel after the accelerated cooling process under the Ar3 temperature was investigated. Two modes of heat treatment were applied to achieve homogeneous microst...
Influence of process parameters on torsional strength, impact toughness and hardness of dissimilar AISI 304 and AISI 1021 friction welded steels
In this present study an attempt was made to join austenitic stainless steel (AISI 304) with low alloy steel (AISI 1021) at different rotational speeds and at different axial pressures and then determining the strength o...