5Kulka M, Pertek A, Makuch N. The concentration-depth profile beneath iron fatigue strength[J]. Materials Science and 528($29-30) : 8 641-8 650 importance borides for Engineering of carbon low-cycle A, 2011,.
6Selcuk B, Ipek R, Karamis M B,et al. An investigation on surface properties of treated low carbon and alloyed steels ( boriding and carburizing) [J]. Journal of Materials Processing Technology, 2000, 103(99) :310-317.
7Sen S, Sen U. The effect of boronizing and boro-ehromizing on tribologieal performance of AISI 52100 bearing steels [J]. Industrial Lubrication and Tribology, 2009, 61 (3) :146 - 153.
8Matsushita M. Boronization and carburization of superplastic stainless steel and titanium-based alloys [J]. Materials, 2011, 4 (7) : 1 309-1 320.
9Yu L G, Chen X J, Khor K A, et al. FeB/Fe2B phase transformation during SPS paek-boriding: boride layer growth kinetics[J]. Acta Materialia, 2005, 53(8) : 2 361 -2 368.