It is a new technology of steel
surface modification that diamond-like carbon film was deposited by ion
beam.Ion beam bombarded energy had an influence upon the properties of DLC film.The maximum
microhardness and surface resistance rate existed at about 600eV.Dual ion beam bombarded and mixed interface can increase microhardness and resistance rate of DLC film and result in their maximum moving to lower energy.It also strengthens greatly the adhesion between DLC film and matrix.At atmosphere,the friction coefficient of DLC film against steel is from 0.080 to 0.180.In reciprocating sliding wear test,DLC film increases remarkably the wear resistance of steel.It shows that wear loss of 40Cr steel after coating is 1/274 than that of before.DLC films raise E corr and E b of 2Cr13 stainless steel in 3.5% NaCl solution,and improve the ability of steel to resist to pitting corrosion.beam.Ion beam bombarded energy had an influence upon the properties of DLC film.The maximum microhardness and surface resistance rate existed at about 600eV.Dual ion beam bombarded and mixed interface can increase microhardness and resistance rate of DLC film and result in their maximum moving to lower energy.It also strengthens greatly the adhesion between DLC film and matrix.At atmosphere,the friction coefficient of DLC film against steel is from 0.080 to 0.180.In reciprocating sliding wear test,DLC film increases remarkably the wear resistance of steel.It shows that wear loss of 40Cr steel after coating is 1/274 than that of before.DLC films raise E corr and E b of 2Cr13 stainless steel in 3.5% NaCl solution,and improve the ability of steel to resist to pitting corrosion.