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 500–725°C. 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.
SongR., PongeD., RaabeD. and KasparR.: ‘Microstructure and crystallographic texture of an ultrafine grained C—Mn steel and their evolution during warm deformation and annealing”. Acta Mater., 2005, 53, (3), 845–858.
2.
ChattopadhyayS. and SellarsC. M.: ‘Kinetics of pearlile spheroidisation during static annealing and during hot deformation’, Acta Metall., 1982, 30, (1), 157–170.
3.
TurniaJ., SinclairJ. and PerezJ.: ‘A review of wheel wear and rolling contact fatigue’. Proc. Inst. Mech. Eng. F, 2007, 221F, (2), 271289.
4.
CvetkovskiK., AhlströmJ. and KarlssonB.: ‘Monotonie and cyclic deformation of a high silicon pearlitic wheel steel”. Proc. 8th Int. Conf. on ‘Contact mechanics and wear of rail/wheel systems’, Firenze, Italy, September 2009, 557–563, AB Editore.
5.
AhlströmJ. and KarlssonB.: ‘Microstructural evaluation and interpretation of the mechanically and thermally affected zone under railway wheel flats’, Wear, 1999, 232, (1), 1–14.
HandaK., KimuraY. and MishimaY.: ‘Ferrite and spheroidized cementite ultrafine microstructure formation in an Fe 0–67 Pct C steel for railway wheels under simulated service conditions’. Metall. Mater. Trans. A.2009. 40A, (12), 2901–2908.
8.
GladmanT., McIvorI. D. and PickeringF. B.: ‘Some aspects of the structure—property relationships in high-carbon ferrite—pearlite steels’, J. Iron Steel Inst. (London), 1972, 210, (12), 916–930.
9.
KarlssonB. and LindénG.: ‘Plastic deformation of ferrite—pearlite structures in steel’, Mater. Sci. Eng., 1975, 17, (2), 209–219.
10.
HyzakJ. and BernsteinI.: ‘The role of microstructure on the strength and toughness of fully pearlitic steels’, Metall. Mater. Trans. A, 1976, 7A, (7), 1217–1224.
11.
ModiO. P., DeshmukhN., MondalD. P., JhaA. K., YegncswaranA. H. and KhairaH. K.: ‘Effect of interlamellar spacing on the mechanical properties of 0·65C steel’. Mater. Charact., 2001, 46. (5), 347–352.
12.
MarderA. and BramfittB.: ‘The effect of morphology on the strength of pearlite’, Metall. Mater. Trans. A, 1976, 7A, (2), 365–372.
13.
LvZ. Q., SunS. H., WangZ. H., QvM. G., JiangP. and FuW. T.: ‘Effect of alloying elements addition on coarsening behavior of pearlitic cementite particles after severe cold rolling and annealing’, Mater. Sci. Eng. A, 2008, A489, (1–2), 107–112.
14.
TaruiT., TakahashiT., OhashiS. and UemoriR.: ‘Effect of silicon on the age softening of high carbon steel wire’. Iron Steelmaker, 1994, 21, (9), 25–30.
15.
MiyamotoG., OhJ. C., HonoK., FuruharaT. and MakiT.: ‘Effect of partitioning of Mn and Si on the growth kinetics of cementite in tempered Fe—0·6 massC martensite’, Acta Mater, 2007. 55, (15), 5027–5038.
16.
ClarkeM.: ‘Wheel rolling contact fatigue (RCF) and rim defects investigation to further knowledge of the causes of RCF and to determine control measures’, Report no. T672, Railway Safety and Standards Board, London, UK, 2008.
17.
ChoiY., ParkI.. KimJ., ChoK. and LeeD.: ‘Effect of Si on the thermo-mechanical deformation and spheroidization of medium carbon steels’. Met. Mater. Int., 2005, 11. (4), 327–332.
18.
DowlingN. E.: ‘Mechanical behaviour of material: engineering methods for deformation, facture, and fatigue’: 1999, Upper Saddle-River, NJ, Prentice-Hall.
19.
NorrisD. M., MoranB.Jr., ScudderJ. K. and QuiñonesD. F.: ‘A computer simulation of the tension test’, J. Mech. Phys. Solids, 1978, 26, (1), 1–19.
20.
AhlströmJ. and KarlssonB.: ‘Fatigue behaviour of rail steel—a comparison between strain and stress controlled loading’, Wear, 2005, 258, (7–8). 11871193.
21.
KöppenN.: ‘Deformation behaviour of near fully pcarlitic railway steels during monotonie and cyclic loading’, PhD thesis, Chalmers University of Technology, Göteborg, Sweden, 2006.
22.
MassalskiT. B. (ed.): ‘Binary alloy phase diagrams’, Vol. 2, 3589; 1990, Materials Park, OH, ASM International.
23.
OwenW. S.: ‘The effect of silicon on the kinetics of tempering’, Trans. ASM.1954, 46, 812–829.
24.
GavriljukV. G.: ‘Decomposition of cementite in pearlitic steel due to plastic deformation’. Mater. Sci. Eng. A, 2003, A345, (1–2), 81–89.
25.
WaughA. R., PaetkeS. and EdmondsD. V.: ‘A study of segregation to the dislocation substructure in patented steel wire using atom-probe techniques’. Metallography, 1981, 14, (3), 237–251.
26.
HandaK., KimuraY., YasumotoY., KamiokaT. and MishimaY.: ‘Effect of deformation and annealing temperatures on ultrafine microstructure development and yield strength of pcarlitic steel through continuous recrystallization”, Mater. Sci. Eng. A, 2010, A527, (7–8), 1926–1932.
