Results 21 to 30 of about 1,828 (197)

Influence of alloying (Cr, Fe, Ni) on the corrosion resistance of layers formed by electron-beam processing

Chimica Techno Acta, 2022
The paper presents the results of comparative analysis of the properties of coatings based on chromium, nickel and iron borides. The alloy obtained in the process of electron-beam surfacing of the powder mixture “amorphous boron – 10 wt.% chromium” has ...
Evdokiya Bushueva, Evgeniy Turlo, Evgeniya Kladieva, Veronica Sulyaeva, Elizaveta Pukhova   +4 more
doaj   +1 more source

Insights to structure stability, elastic properties, fracture toughness, and thermal conductivities of TM7B3 (TM = Tc, Ru, Rh and Re) borides

Journal of Materials Research and Technology
In this work, to understand the crack propagations, mechanical stability, and high-temperature applications of TM7B3 (TM = Tc, Ru, Rh and Re) borides in view of the intrinsic thermodynamic and mechanical properties, the elastic anisotropy, fracture ...
Lin Su, Yonghua Duan, Linhui Su, Lishi Ma, Shunbin Li, Bo Huang, Mengnie Li   +6 more
doaj   +1 more source

BORON. PROPERTIES AND APPLICATION IN NUCLEAR ENERGY

Литьë и металлургия, 2017
Boron is one of the available chemical elements actively influencing the properties of the alloys. The main use of boron is in the alloys of the control rods of nuclear reactors to stop or slow down the fission reaction.
V. A. Palekha, A. A. Getman
doaj   +1 more source

First Principles Density Functional Theory Prediction of the Crystal Structure and the Elastic Properties of Mo₂ZrB₂ and Mo₂HfB₂

Crystals, 2020
The Molybdenum rich ternary alloys Mo-M-B (M = Zr, Hf) contain, next to the Mo solid solution (bcc Mo with small amounts of Zr or Hf as substitutional atoms), the binary borides Mo2B, MB and MB2.
Rachid Stefan Touzani, Manja Krüger
doaj   +1 more source

NiB-CrC Coatings Prepared by Magnetron Sputtering Using Composite Ceramic NiCr-BC Target Produced by Detonation Spray Coating

Nanomaterials, 2022
A metal–ceramic composite target for magnetron sputtering was fabricated for the first time by a robotic complex for the detonation spraying of coatings equipped with a multi-chamber detonation accelerator. A mixture of metal and ceramic NiCr/B4C powders
Viacheslav Sirota, Sergei Zaitsev, Dmitriy Prokhorenkov, Mihail Limarenko, Andrey Skiba, Marina Kovaleva   +5 more
doaj   +1 more source

A Surface Conversion Treatment on a Borided and Cemented Seel Coated with Chromium Filme

Iranian Journal of Materials Science and Engineering, 2021
Coatings based on chromium borides and chromium carbides are commonly employed in applications requiring mechanical performance, such as high hardness and low friction coefficient, as well as corrosion resistance. In this work, we made layers of chromium
Rabah Bobaaya, Omar Allaoui, Mokhtar Djendel, Samir Benaniba   +3 more
doaj  

Experimental Characterization and Constitutive Modeling of the Effect of Prior Inelastic Strain on the Viscoplastic Behavior of AD730 at 700 °C

Advanced Engineering Materials, EarlyView.
This study shows that superalloys used in aircraft engine disks become much more prone to deformation at high temperatures if they have been strained during manufacturing. This effect increases with the level of prior strain but eventually reaches a limit.
Fabio Machado Alves da Fonseca, Patrick Villechaise, Malik Durand, Arnaud Longuet, Florent Coudon, Loïc Signor, Julien De Jaeger, Dominique Eyidi, Nathalie Bozzolo, Jonathan Cormier   +9 more
wiley   +1 more source

Monitoring the Microwave Synthesis of d0‐Free Disordered Rocksalt Cathodes Using In Situ Infrared Pyrometry

Angewandte Chemie, EarlyView.
Despite its promise for producing metastable materials, the mechanisms underlying solid‐state microwave synthesis remain poorly understood. By combining in situ thermography with x‐ray diffraction and solid‐state NMR, this study uncovers a surprising order–disorder–order reaction pathway during the microwave synthesis of the Li1.1Mn0.9O1.9F0.1${\rm Li ...
Erick A. Lawrence, Matthew A. Wright, Tianyu Li, Euan N. Bassey, Vijay Kumar, Shiyu Yuan, Yangying Zhu, Pierre‐Etienne Cabelguen, Raphaële J. Clément   +8 more
wiley   +2 more sources

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Effect of Boron on the Microstructure and Strength-Toughness of Fe-Cr-B-C Alloy after Heat Treatment [PDF]

Teshugang
In order to explore new methods for improving the strength-toughness matching of Fe-Cr-B-C alloy， the effect of B content on its microstructure， hardness， and impact toughness after heat treatment were investigated.
Li Yang, Zhao Guangdi, Zang Ximin, Jiang Haoyuan, Wang Zhaoyu   +4 more
doaj   +2 more sources