PHASE ANALYSIS OF EXPLOSIVE WELDED Ti-Cr/Ni STEEL IN AS-RECEIVED STATE AND AFTER HEAT TREATMENT USING SYNCHROTRON

摘要

Surface coatings protection is one of the most important processes ensuring efficient and economic use of basic materials, mostly of lower-quality. At interface of clad and basic material intermetallic phases are formed, representing quite different matrix with dissimilar properties unlike the welded materials. One type of surface coating is explosive bonding which belongs to group of pressure welding. The work is focused on interface shape line, inhomogeneities in vicinity of the wave joint both in basic material and in vicinity of weld line of the Ti and Cr/Ni stainless steel (SS) matrix. Investigated weld was both in as-received state and after heat treatment carried out at 600 degrees C/90 minutes/air. Presented phases have been identified using X-ray diffraction performed by synchrotron. The Ti alpha, Fe-fcc, Fe-bcc and intermetallic phases Fe2Ti were detected at interface area.