1. (1) M. Pellizzari, A. Molinari and G. Straffelini, Thermal fatigue resistance of gas and plasma nitrided 41CrAlMo7 steel, Materials Science and Engineering A, Vol. 352 (2003), pp. 186-194.
2. (2) M. Kobayashi, T. Sakurada and I. Okabe, Prediction method of fatigue strength of gas soft-nitrided and ion nitrided steels, Transactions of the Japan Society of Mechanical Engineers, Series A, Vol. 62, No. 597 (1996), pp. 1132-1139.
3. (3) K. Genel, M. Demirkol and M. Capa, Effect of ion nitriding on fatigue behaviour of AISI 4140 steel, Materials Science and Engineering A, Vol. 279 (2000), pp. 207-216.
4. (4) A. Alsaran, M. Karakan and A. Celik, The investigation of mechanical properties of ion-nitrided AISI5140 low-alloy steel, Materials Characterization, Vol. 48 (2002), pp. 323-327.
5. (5) G. Wroblewski and K. Skalski, Properties of surface layer generated by new combined process of burnishing and nitriding, Surface Engineering, Vol. 22, No. 2 (2006), pp. 138-146.