The latent fingerprint in mass transport of polycrystalline materials

摘要: Herein, a systematic investigation was carried out to reach rational understanding and provide information concerning the possible causes for significant influence of pressure variation in underlying processes mass transport polycrystalline materials. The authors focused their research solid-state diffusion, part subject “Mass Transport Solids”. Theories on diffusion are by itself which exists as latent fingerprint every text higher learning interdisciplinary science. In this research, prepared sandwich samples titanium alloy stainless steel using nickel an intermediate metal. were processed at three different levels bonding (3, 4 5 MPa) while temperature time maintained 750 °C 1 h, respectively, throughout experiments. It observed that net flux atomic atoms into Ti-alloy TiA/Ni interface increased ~63 % with rise from 3 MPa, but decreased ~40 MPa. At same time, Ni/SS ~19 ~17 Here showed variations have effects interface, tried explain explicit mechanisms operating behind them. general irrespective chosen, Ni-atoms diffused SS is greater than matrix four orders magnitude. calculated diffusivity reaches its highest value ~5.083 × 10−19 m2/s sample 4-MPa bonding-pressure, whereas peak ~1.615 10−14 bonded 5-MPa bonding-pressure.