Results 21 to 30 of about 2,830 (209)

Characterization of Boride Coatings on AISI 8620 Steels without and with Hydrogen Permeation

Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022
The present work studied the characterization of boriding coatings without and with exposed hydrogen permeation on AISI 8620 through microstructure and mechanical behavior. A dehydrated paste pack process was carried out for the formation of boride coatings on AISI 8620 at 1173, 1223, and 1273 K for 6 h of exposure time for each temperature.
Marco Antonio Doñu Ruiz, Ernesto David García Bustos, Tomas de la Mora Ramirez, David Sánchez Huitron, Víctor Jorge Cortes Suarez, Noé López Perrusquia, Dimitrios E. Manolakos   +6 more
wiley   +1 more source

Phase Composition and Defect Substructure of Strengthening Layer Surfaced on Low Alloyed Steel [PDF]

, 2018
The microstructure and microhardness distribution in surface of low carbon Hardox 450 steel coated with alloyed powder wires of different chemical compositions are studied.
Gromov, Victor E., Ivanov, Yurii F. I, Konovalov, Konovalov, Kormyshev, Vassily E., Qin, Rongshan, Semina, Olga A   +5 more
core   +1 more source

Syn‐rift hydrothermal circulation in the Mesozoic carbonates of the western Adriatic continental palaeomargin (Western Southalpine Domain, NW Italy)

Basin Research, Volume 33, Issue 6, Page 3045-3076, December 2021., 2021
Conceptual model of hydrothermal circulation. (a) Ideal cross section across the future Adriatic palaeomargin in the late Early Jurassic (partly modified from Beltrando et al., 2015; Ferrando et al., 2004), showing the position of the zoomed areas in (b) and (c).
L. Barale, C. Bertok, A. d’Atri, A. Mantovani, L. Martire, S. Agostini, S. M. Bernasconi, A. Gerdes, S. Ferrando   +8 more
wiley   +1 more source

Effects of local nonequilibrium in rapid eutectic solidification—Part 2: Analysis of effects and comparison to experiment

Mathematical Methods in the Applied Sciences, Volume 44, Issue 16, Page 12271-12282, 15 November 2021., 2021
The developed model of diffusion‐limited and diffusionless solidification of a eutectic alloy describes the relation “undercooling (ΔT)‐velocity (V)‐interlamellar spacing (λ)” for two cases. Namely, when the solidification front velocity V is smaller than the solute diffusion speed in bulk liquid VD, V < VD, the model predicts a regime of eutectic ...
Junfeng Xu, Markus Rettenmayr, Peter K. Galenko   +2 more
wiley   +1 more source

Analysis of the growth kinetics of Fe2B layers by the integral method [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2018
In this study, an alternative approach based on the integral method was proposed to estimate the values of boron diffusion coefficients in the Fe2B layers grown at the surface of Armco iron.
Keddam M., Kulka M.
doaj   +1 more source

Charge Order Superstructure with Integer Iron Valence in Fe2OBO3 [PDF]

, 2007
Solution-grown single crystals of Fe2OBO3 were characterized by specific heat, Mossbauer spectroscopy, and x-ray diffraction. A peak in the specific heat at 340 K indicates the onset of charge order.
B. C. Sales, D. Mandrus, E. J. W. Verwey, H. J. Xiang, J. W. Brill, M. Angst, M.-H. Whangbo, P. Khalifah, R. P. Hermann, V. Varadarajan   +9 more
core   +2 more sources

Influence of different electron beam surface pre‐treatments on the results of subsequent boriding‐part I Einfluss verschiedener Elektronenstrahl‐Randschichtbehandlungen auf das Ergebnis eines nachfolgenden Borierens‐Teil I

Materialwissenschaft und Werkstofftechnik, Volume 52, Issue 8, Page 815-830, August 2021., 2021
Under comparable boriding conditions, the layer thickness generated on the unalloyed cast iron surface were approximately twice as thick as on the nickel cladded surface. For the unalloyed substrate, the well‐known iron borides were determined. The boride layer formed on the alloyed surface contained iron borides with dissolved nickel portions as well ...
A. Buchwalder, J. Thronicke, A. Jung, P. Hengst, R. Hunger, S. Hartwig, R. Zenker   +6 more
wiley   +1 more source

Influence of structural transformations on electric and magnetic properties of Fe81B13Si4C2 amorphous alloy [PDF]

Science of Sintering, 2010
The structural transformations of the Fe81B13Si4C2 amorphous alloy under nonisothermal as well as under isothermal conditions were studied. The amorphous alloy was stable up to a temperature of about 450ºC when the structural transformations began.
Minić D.M., Plazinić M., Živanić J., Maričić A.   +3 more
doaj   +1 more source

Origin of the spin reorientation transitions in (Fe$_{1-x}$Co$_{x}$)$_{2}$B alloys [PDF]

, 2015
Low-temperature measurements of the magnetocrystalline anisotropy energy $K$ in (Fe$_{1-x}$Co$_{x}$)$_{2}$B alloys are reported, and the origin of this anisotropy is elucidated using a first-principles electronic structure analysis.
Antropov, Vladimir P., Belashchenko, Kirill D., Benedict, Lorin X., Bud'ko, Sergey L., Canfield, Paul C., Däne, Markus, Jesche, Anton, Ke, Liqin, Lamichhane, Tej Nath, Taufour, Valentin   +9 more
core   +3 more sources

Effect of the Boron Powder on Surface AISI W2 Steel: Experiments and Modelling

Advances in Materials Science and Engineering, 2021
The effect of boron powder on surface AISI W2 steel and growth kinetic of the boride layer is studied. Boron powder mixture was used in the powder pack boriding; this process was carried out in the temperature range from 1173 to 1273 K with exposure ...
Marco Antonio Doñu Ruiz, David Sánchez Huitron, Ernesto David Garcia Bustos, Víctor Jorge Cortés Suárez, Noé López Perrusquia   +4 more
doaj   +1 more source