1. G.A. Roberts, G. Kraus, and R.L. Kennedy, Tool Steels, Materials Park, ASM International, Ohio, 1998.
2. M.L. Fares, M. Athmani, Y. Khelfaoui, and A. Khettache, An investigation into the effects of conventional heat treatments on mechanical characteristics of new hot working tool steel, IOP Conf. Ser. Mater. Sci. Eng., 28(2012), No. 1, art. No. 012024.
3. P. Bała and J. Krawczyk, Transformation during quenching and ageing of hot-work tool steel, Hradec Moravici, 19(2009), p. 1.
4. Z. Zhang, D. Delagnes, and G. Bernhart, Microstructure evolution of hot-work tool steels during tempering and definition of a kinetic law based on hardness measurements, Mater. Sci. Eng. A, 380(2004), p. 222.
5. A. Medvedeva, J. Bergström, S. Gunnarsson, and J. Andersson, High temperature properties and microstructural stability of hot work tool steels, Mater. Sci. Eng. A, 523(2009), No. 1–2, p. 39.