This paper presents a dislocation-based yield strength model for the nano-indentation size effect. The is based on functional expressions involving densities of statistically stored dislocations and geometrically necessary dislocations. A single-phase austenitic stainless steel (316L) ferrite-austenite dual-phase (2205) are used here as case-study materials to validate proposed model. Experimen...

Effects of vanadium (V) addition on strain distribution, crack initiation and propagation behavior during low-cycle fatigue test in ferrite martensite dual phase (DP) steel were revealed. V effectively extended the life, even though tensile properties approximately identical between V-added DP steels. The stress amplitude suddenly decreased just before fracture steel. initiated from surface pro...

CHARACTERIZATION AND CORROSION OF BCC-TANTALUM COATING DEPOSITED ON ALUMINUM AND STEEL SUBSTRATE BY DC MAGNETRON SPUTTERING by Chirag Joshi Tantalum is one of the most versatile highly refractory corrosion-resistant metals. Tantalum coating can be used as an effective corrosion barrier if it is continuous, free from defects and it adheres well to the substrate. A DC magnetron sputtering techniq...