LATTICE STRAIN ANALYSIS OF TITANIUM ROD PROCESSED BY EQUAL-CHANNEL ANGULAR PRESSING (ECAP) WITH Bc ROUTE USING X-RAY DIFFRACTION LINE BROADENING ANALYSIS

Equal-channel angular pressing (ECAP) was one of severe plastic deformation method in order to increase the mechanical properties solid metal without changing its dimension and adding any alloy elements. The change on ECAPed metals caused by lattice strain, so that strain investigation recommended for evaluating metals. In this study, pure titanium rod treated ECAP with Bc route two passes. Before ECAPed, consisted strains i.e. 0.001014 0.005241. After a 0.005241 reduces 0.003205 0.003555 after first pass again 0.002576 0.002647 Meanwhile, annihilated treatment. These results show treatment can reduce eliminate rod. This study also shows reduction implicates increasing hardness value.