Fig. 85 Molybdenum concentration profiles in a Ni-20Cr-20Mo alloy. (a) Profile across an austenite/μ-phase interface in a sample equilibrated 100 h at 1523 K showing a monotonic variation and attainment of equilibrium. (b) Profile across an austenite/M 6 C carbide interface in a sample exposed More

Fig. 10 Simulated dendritic growth morphology and concentration profiles of an Al-2Cu (wt%) alloy with melt convection for different crystallographic orientations. (a) 0°. (b) 45°. Source: C.P. Hong and M.F. Zhu, in Modeling of Casting, Welding and Advanced Solidification Processes X , D.M More

Fig. 2 Natural convection and concentration profiles in the metal refining electrolyte More

Fig. 13 Oxygen-concentration profiles around a colony of respiring aerobic organisms in an oxygenated environment. Continuous lines are isolines of equal oxygen concentration, while arrows indicate the direction of oxygen fluxes, always perpendicular to the active surface. More

Fig. 3 Concentration profiles for cobalt, aluminum, and boron implants in iron approximated using methods described in Ref 4 . Energy: 50 keV. Dose: 10 71 ion/cm 2 (6.45 × 10 71 ion/in. 2 ) More

Fig. 15 Concentration profiles of chromium and aluminum in the chromaluminized regions of a nickel-base superalloy. Source: Ref 34 More

Fig. 5 Carbon concentration profiles in various steel grades after carburizing at 925 °C (1700 °F) and 1.1 wt% C for (a) 1 and (b) 2 h. Source: Ref 20 More

Fig. 10 Carbon concentration profiles in parts with different surface finishes carburized at 925 °C (1700 °F) and 0.95 wt% C for 3 h. Source: Ref 42 More

Fig. 11 Carbon concentration profiles in SAE 4122 after 2 and 15 h carburizing at 930 °C (1710 °F) and 1.2 wt% carbon potential with and without preoxidation for 30 min at 425 °C (800 °F) More

Fig. 9 Carbon concentration profiles for a carbon rod dissolving in an iron-carbon melt More

Fig. 13 (a) Carbon concentration profiles for a steel rod dissolving in an iron-carbon melt. (b) Iron-carbon phase diagram defining the carbon concentrations noted in (a). Source: Ref 27 More

Fig. 1 Concentration profiles measured on a Ni-Cr-Al diffusion couple using an electron microprobe (points) and the prediction of an error function model (lines). Source: Ref 5 More

Fig. 3 Concentration profiles measured on a Ni-Cr-Al diffusion couple using an electron microprobe (points) and the prediction of an error function model (lines). This example illustrates the up-hill diffusion of chromium. Source: Ref 5 More

Fig. 9 Concentration profiles around a diffusion-controlled moving interface. The phases are in equilibrium at the interface. More

Fig. 13 Concentration profiles during coarsening. The larger β-precipitate grows, while the smaller precipitate dissolves. The scale of this diagram is distorted because the concentrations at the α/β interfaces are typically much smaller than △ C αβ . More

Fig. 16 Variation of concentration profiles versus time for a coating modeled with Eq 115 . On the y -axis, △ C 0 is the initial coating concentration, C Coat , minus the initial substrate concentration, C 0 . More

Fig. 18 Diffusion-bonding concentration profiles predicted by the error function Eq 115 . For n = 1, the thin-film solution and the error function solution are nearly the same. For n = 0.25, the profiles appear to overlap. More

Fig. 19 Concentration profiles as a function of time for a profile that starts as a square wave. After a time of t = λ/(3π 2 D ), the concentration profile looks like a sine wave that decreases in amplitude with time. More

Fig. 20 Concentration profiles for carburizing a thin foil of metal as a function of time. At zero time, the film has a concentration of C 0 , except at the surface where the atmosphere holds the concentration at C sat . More

Fig. 17 Variation of the grain-boundary (GB) chromium concentration profile in commercial-purity type 304 stainless steel with dose for 3.2 MeV proton irradiation at 360 °C (680 °F). Source: Ref 86 More