Effects on the deformation-induced martensitic transformation in AISI 304 in external longitudinal turning

During the turning process of metastable austenitic steels, austenite is transformed into hard martensite by plastic deformation at low temperatures. This enables production components, which have both a hardened subsurface zone and ductile core. Cryogenic cooling allows to be during machining, leads shortening chain. However, effects such as wear can make it challenging adjust properties turning. By adjusting tool microgeometry with flank face modification, condition kept constant for certain period. In addition, significance analysis different microgeometries shows that only feed initial temperature significant effect on formation.