Thermal degradation of pearlitic steels: influence on mechanical properties including fatigue behaviour
Journal article, 2011

With the aim to predict the durability of railway wheels, thermomechanical damage was studied for two steels with different alloying levels of silicon and manganese in the temperature range of 500–725uC. Softening caused by cementite spheroidisation in pearlite leads to changes in the mechanical behaviour and an accompanying decrease in fatigue lifetimes. It was found that higher contents of Si and Mn lead to better resistance to softening of both virgin and plastically deformed material. Correspondingly, the high Si–Mn alloyed steel loses much less in fatigue lifetime than the lower alloyed steel.

Fe–Si–Mn

Deformation

Spheroidisation

Annealing

Low cycle fatigue

Railway

Author

Krste Cvetkovski

Chalmers, Materials and Manufacturing Technology, Materials Technology

Johan Ahlström

Chalmers, Materials and Manufacturing Technology, Materials Technology

Birger Karlsson

Chalmers, Materials and Manufacturing Technology, Materials Technology

Materials Science and Technology

0267-0836 (ISSN)

Vol. 27 3 648-654

Subject Categories

Other Materials Engineering

DOI

10.1179/026708310X520538

More information

Created

10/7/2017