“…Hadfield's austenitic manganese steel performs best when its grain boundaries are free of carbides. Works have been done to modify the original Hadfield steel by the addition of other alloying elements (Rittel et al, 1989;Klueh, R. L. and Maziasz, 1990;Bayraktar et al, 1994;Miyahara et al, 1994;Takahashia et al, 1998;He, et al, 2002;Kuc et al, 2006;Zhang et al, 1998), by varying its composition (Zhang et al, 1998;García, 2005;Gavriljuk et al, 2006) or subjecting it to various treatments (Pelletier et al, 1995;John and Cornog, 1997;Owen and Grujicic, 1998;Zhang et al, 2007;Wang et al, 2007) in order to meet different engineering application. Improvement on the mechanical properties of austenitic manganese steel over the years has not been exhausted.…”