Formation of Nanostructure and Tool Wear During Cutting Treatment of Titanium Alloy

摘要

Methods of the optical metallography, TEM, SEM- technique, tests for hardness and wear resistance are used to investigated the structural - phase transformation in metal blanks from alloy VT23 at cutting treatment in an interval of speeds 2... 120 m/min are given. The patterns of interaction of dynamic plastic deformation and destructions on macro-, meso-, micro- and nano-levels are determined. It is shown that the formation in metal blank of modulated high-tensile secondary nanostructures promotes a heightening of a protective wearproofity of treated metal blank, but cutting edge, lowering a wearproofity, of the cutting tool.