Now showing items 1-20 of 27

    • Al-Co, Co-Fe Diffusion Mobilities, Ni/Rene88, IN718/Rene88 

      Campbell, Carelyn E.; Zhao, J-C.; Henry, M. F. (2013-05-05)
      A multicomponent diffusion mobility database for the Ni-rich fcc phase [2002Cam] is evaluated by comparing diffusion simulations to two experimental multicomponent Ni-base superalloy diffusion couples: Ni/Rene´-88 and ...
    • Mg-Al Interdiffusion and Phase Growth Kinetics 

      Kulkarni, Kaustubh N.; Luo, Alan A. (2013-05-07)
      Binary interdiffusion data as functions of composition in the Mg-Al system are essential in modeling kinetics of phase transformations in multicomponent Mg and Al alloys. Interdiffusion and phase growth kinetics were studied ...
    • Interdiffusion in the Mg-Al System and Intrinsic Diffusion in beta-Mg2Al3 

      Brennan, Sarah; Bermudez, Katrina; Kulkarni, Nagraj S.; Sohn, Yongho (2013-05-07)
      Solid-to-solid diffusion couples were assembled and annealed to examine the diffusion between pure Mg (99.96 pct) and Al (99.999 pct). Diffusion anneals were carried out at 573 K, 623 K and 673 K (300 C, 350 C and 400 C) ...
    • Al Impurity Diffusion in Mg 

      Brennan, Sarah; Warren, Andrew P.; Coffey, Kevin R.; Kulkarni, Nagraj; Todd, Peter; Kilmov, Mikhail; Sohn, Yongho (2013-05-07)
      The diffusion of Al in polycrystalline Mg (99.9%) was studied via depth profiling with secondary ion mass spectrometry in the temperature range of 573-673 K, utilizing the thin film method and thin film solution to the ...
    • Ni Self-Diffusion 

      Maier, K; Mehrer, H; Lessmann, E; Schüle, W (2013-06-26)
      Self-diffusion in nickel single crystals is measured between 813 and 1193 K using ion-beam sputtering as a microsectioning technique. Gaussian activity-depth profiles are observed over about three orders of magnitude in ...
    • Interrelationship between the Diffusion Behaviour and the phase Transformation Characteristics 

      Tiwari, GP; Hirano, Ken-ichi (2013-07-03)
      It has been observed that the metals which exhibit anomalous diffusion behaviour are all allotropic in nature. A hypothesis to rationalise this interrationship between the diffusion behaviour and the phase transformation ...
    • Self-Diffusion and fast cobalt impurity diffusion in the bulk and in grain boundaries of hexagonal titanium 

      Herzig, Christian; Willecke, Ralf; Vieregge, Klaus (2013-07-03)
      Bulk Self-Diffusion was measure in alpha-Titanium single crystals between 776 and 1132 K using the radiotracer Ti44 and ion beam sputtering for profile sectioning.
    • Cr Self-Diffusion Mundy 1981 

      Mundy, J. N.; Hoff, H. A.; Pelleg, J.; Rothman, S. J.; Nowicki, L. J.; Schmidt, F. A. (2013-07-03)
      Self-diffusion in chromium single crystals has been measured over the temperature range 1073 to 1446 K. These data, when combined with earlier measurements from this laboratory over the. range 1370—2090 K, yield a plot ...

      Murdock, J. F.; Lundy, T.S; Stansbury, E.E (2013-07-03)
      The diffusion of Ti44 and V48 in the b.c.c. phase of iodide titanium has been studied over the temperature range 909-1550°C. The resulting Arrhenius-type plots show curvature with the apparent activation energies and ...
    • On the Anomalous Self-Diffusion in B.C.C. Titanium 

      Kohler, U; Herzig, C.H (2013-07-03)
      Self-diffusion of the Ti44 is measured in Beta-Titanium under UHV conditions int eh whole range of existence of the bcc phase. The Arrhenius plot shows a strong upward curvature in agreement with previous investigations ...
    • Cr Self-Diffusion Mundy 1976 

      Mundy, J. N.; Tse, C. W.; McFall, W. D. (2013-07-03)
      The diffusion of "Cr in chromium has been measured between 1100 and 1820'C, and the data fit the Arrhenius relation D = 970exp(—104000/R T) cm'sec '. Isotope-effect measurements, using isotopes "Cr and "Cr, have been ...
    • Cr Self-Diffusion Askill 1971 

      Askill, J. (2013-07-08)
      Self diffusion of Cr-51 in pure chromium, Cr +20 wt% Ni, Cr +44wt% Ni, and Cr +65%wt Ni has been measured over the temperature ranges of 1000 to 1900, 1000 to 1525, and 900 to 1350 degrees C, respectively.
    • Self-Diffusion in Solid Chromium 

      Hagel, W. C. (2013-07-08)
    • Cr Self-Diffusion Paxton Gondolf 1959 

      Paxton, H. W.; Gondolf, E. G. (2013-07-08)
      Measurement of the radioactivity of the surface reduced by partial diffusion of the radioactive chromium as well a measurement of the radioactivity after gradual working off of thin surface films, after coating radioactive ...
    • Cr Self-Diffusion Askill and Tomlin 1965 

      Askill, J.; Tomlin, D. H. (2013-07-08)
      Self-diffusion measurements have been made in the temperature range 1000 degrees c to 1550 degrees c in order to resolve some uncertainties arising from previously published data from several separate investigations covering ...
    • Mg Self-Diffusion 

      Combronde, J.; Brebec, G. (2013-08-09)
      The self-diffusion of magnesium along the c-axis and perpendicular to it has been investigated in the temperature range from 500 to 630 C.
    • Mg Self-Diffusion 

      Shewmon, P. G.; Rhines, F. N. (2013-08-09)
      The determination of the self-diffusion coefficient of magnesium has been made possible recently by discovery of a radioactive isotope, Mg-28 having a half-life of 21.3 hr, and subject to manufacture in useful quantity.
    • Mg Self-Diffusion Pavlinov 1968 

      Pavlinov, L. V.; Gladyshev, A. M.; Bykov, V. N. (2013-08-29)
      It is found that the parameters of self-diffusion and carbon diffusion in calcium are in good agreement with the general regularities for self-diffusion in pure metals and interstitial impurity diffusion in metals with a ...
    • Al Self-Diffusion Fradin, Rowland 1967 

      Rowland, T. J.; Fradin, F. Y. (2013-10-01)
      Using a radio‐frequency field pulse technique which enables measurement of slow atomic diffusion by means of nuclear magnetic resonance we have obtained, for nominally 6–9's pure Al, an activation energy for self‐diffusion ...
    • Al Self-diffusion, Messer et al. 1974 

      Messer, R.; Dais, S.; Wolf, D. (2014-01-19)