Results 51 to 60 of about 4,525 (236)

Improved Tribocorrosion Resistance of a CoCrMo Implant Material by Carburising

Lubricants, 2018
Tribocorrosion damage is a cause for the premature failure of hip implants made of cobalt-based alloys. Low-temperature carburising can be a plausible solution towards mitigating the tribocorrosion damage of articulating components.
Josianne Cassar, Bertram Mallia, Antonino Mazzonello, Andreas Karl, Joseph Buhagiar   +4 more
doaj   +1 more source

Kinetics of Stainless Steel Material by Plasma nitriding Process for sustainable applications [PDF]

E3S Web of Conferences
Implantation of ion at low temperature and nitriding through plasma process at low-temperature prevents the corrosion resistance in stainless steel material. The outcome of nitriding process is to form precipitation of CrN on the surface. For the current
Kumar S.N.S. Santhosh, Venkatesh J., Rahul V., Gowthaman J., Prasad D.V.S.S.S.V., Navaneeth V.R., Ram S.   +6 more
doaj   +1 more source

Crystallographic Orientation Dependence of Nitrogen Mass Transport in Austenitic Stainless Steel

Metals, 2020
The lattice stress-induced diffusion of nitrogen and hydrogen in austenitic stainless steel, taking place during nitriding in nitrogen/hydrogen plasma, is analyzed in the presented work.
Teresa Moskalioviene, Arvaidas Galdikas
doaj   +1 more source

Influence of carbon and nitrogen on electronic structure and hyperfine interactions in fcc iron-based alloys

, 2000
Carbon and nitrogen austenites, modeled by Fe8N and Fe8C superstructures are studied by full-potential LAPW method. Structure parameters, electronic and magnetic properties as well as hyperfine interaction parameters are obtained. Calculations prove that
A N Timoshevskii, B Z Yanchitsky, Bauer Ph, Bauer Ph, Blaha P, Blaha P, Cheng Liu, De Cristofaro N, Foct J, Gavriljuk V G, Gavriljuk V G, Genin J M, Oda K, Oda K, Rochegude P, Singh D, Singh D, Timoshevskii A N, V A Timoshevskii   +18 more
core   +1 more source

Effect of C2H2/H2 Gas Mixture Ratio in Direct Low-Temperature Vacuum Carburization

Metals, 2018
The effect of the acetylene and hydrogen gases mixture ratios in direct low-temperature vacuum carburization was investigated. The gas ratio is an important parameter for producing free radicals in carburization.
Yeongha Song, Jun-Ho Kim, Kyu-Sik Kim, Sunkwang Kim, Pung Keun Song   +4 more
doaj   +1 more source

Duplex and superduplex stainless steels: microstructure and properties evolution by surface modification processes [PDF]

, 2019
The paper presents an overview of diffusion surface treatments, especially nitriding processes, applied to duplex and superduplex stainless steels in the last five years. Research has been done mainly to investigate different nitriding processes in order
Biserova Tahchieva, Alisiya, Cabrera Marrero, José M., Llorca Isern, Núria   +2 more
core  

Statistical Derivation of Basic Equations of Diffusional Kinetics in Alloys with Application to the Description of Diffusion of Carbon in Austenite

, 2012
Basic equations of diffusional kinetics in alloys are statistically derived using the master equation approach. To describe diffusional transformations in substitution alloys, we derive the "quasi-equilibrium" kinetic equation which generalizes its ...
A. D. Clair Le, C. Domain, C. Kittel, C. Wells, D. E. Jiang, F. Soisson, G. Martin, G. V. Kurdyumov, H. K. D. H. Bhadeshia, I. A. Zhuravlev, J. Neuhaus, J. Zaretsky, J. Åren, J. Åren, J. Åren, J. Åren, J. Åren, K. D. Belashchenko, K. Yu. Khromov, L. D. Landau, L. Onsager, M. K. Miller, M. Nastar, M. Nastar, M. S. Blanter, P. Thibaux, R. P. Kolli, R. P. Smith, R. Rana, S. K. Satyia, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, V. G. Vaks, Y. L. Bouar   +41 more
core   +1 more source

Tribological Performance of 60NiTi Alloy Under Varying Contact Conditions and Elevated Temperatures in Linear Reciprocating Sliding

Advanced Engineering Materials, EarlyView.
This study investigates the tribological response of 60NiTi alloy under dry, water‐lubricated and high‐temperature conditions. The alloy exhibits decreasing wear volume and friction with increasing temperature due to the formation of protective oxide layers. The work clarifies dominant wear mechanisms and demonstrates the suitability of 60NiTi for high‐
Anthony Onyebuchi Okoani, Miguel Angel Selles, Maziar Ramezani   +2 more
wiley   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Synchrotron X-ray diffraction study of thermal decomposition of expanded austenite [PDF]

, 2014
Brink, Bastian, Christiansen, Thomas Lundin, Somers, Marcel A. J., Ståhl, Kenny   +3 more
core   +2 more sources