Author:Seleka, T; Pityana, Sisa L; Ulbrich, M; Rampedi, LDate:Nov 2007An AISI 420 martensitic stainless steel, 0.6 mm thick was melted with a 4.4 Kw continuous wave Nd: Yag laser in order to induce a certain proportion of retained austenite in a matrix. The volume percentage of the retained austenite in the ...Read more