Results 41 to 50 of about 5,641 (233)

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

Current Functional Materials for Wear-Resistant Casting: from Multicomponent Cast Irons to Hybrid High-Boron Alloys

Успехи физики металлов, 2022
The results obtained in the last two decades in the development of functional tribological alloys for the castings working under severe abrasion, erosion, and erosion–corrosion conditions are reviewed.
Yu. G. Chabak, V. I. Zurnadzhy, M. A. Golinskyi, V. G. Efremenko, N. P. Zaichuk, I. Petryshynets, and S. P. Shymchuk
doaj   +1 more source

The role of autogenic halide gas in the production of metal borides [PDF]

, 2014
Synthesis of metal borides is typically undertaken at high temperature using direct combinations of elemental starting materials[1]. Techniques include carbothermal reduction using elemental carbon, metals, metal oxides and B2O3[2] or reaction between ...
Alarco, Jose, Mackinnon, Ian D.R., Talbot, Peter C.   +2 more
core  

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
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

Short-Term Oxidation of HfB₂-SiC Based UHTC in Supersonic Flow of Carbon Dioxide Plasma

Plasma
The short-term (5 min) exposure to the supersonic flow of carbon dioxide plasma on ultrahigh-temperature ceramics of HfB2-30vol.%SiC composition has been studied.
Aleksey V. Chaplygin, Elizaveta P. Simonenko, Mikhail A. Kotov, Vladimir I. Sakharov, Ilya V. Lukomskii, Semen S. Galkin, Anatoly F. Kolesnikov, Anton S. Lysenkov, Ilya A. Nagornov, Artem S. Mokrushin, Nikolay P. Simonenko, Nikolay T. Kuznetsov, Mikhail Y. Yakimov, Andrey N. Shemyakin, Nikolay G. Solovyov   +14 more
doaj   +1 more source

Characterizations and boron diffusion modelling on the AISI H13 steel [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
A kinetic approach accounting for the linearity of boron profiles through the boronized layers on AISI H13 steel was developed. It aims to track the temporal evolution of the thicknesses of the FeB and (FeB + Fe2B) layers by considering new expressions ...
Ortiz-Domínguez M., Keddam M., Morales-Robles Á.J.   +2 more
doaj   +1 more source

High‐Entropy Alloy Interlayers Toward Advanced Joining for High‐Performance Structural Applications: Current Progress and Emerging Challenges

Advanced Engineering Materials, EarlyView.
HEA interlayers offer a versatile route for joining high‐performance structural materials. Their compositional and structural design regulates interfacial reactions, suppresses brittle IMCs, and improves metallurgical bonding. Sandwich interlayers further integrate defect healing with precipitation strengthening, enabling improved strength–ductility ...
Lin Yuan, Jiafen Song, Jinglong Li, Jiangtao Xiong, Tao Yang   +4 more
wiley   +1 more source

High-T c 2D ambient BCS superconductors in hydrogenated transition-metal borides

npj 2D Materials and Applications
The discovery of MgB2, with T c of 39 K, has inspired intensive studies on various metal (di)-borides to identify other potential conventional high-temperature superconductors.
Jakkapat Seeyangnok, Udomsilp Pinsook, Graeme J. Ackland   +2 more
doaj   +1 more source

Electronic Structure and Chemical Bonding of the First-, Second-, and Third-Row-Transition-Metal Monoborides: The Formation of Quadruple Bonds in RhB, RuB, and TcB

Molecules, 2023
Boron presents an important role in chemistry, biology, and materials science. Diatomic transition-metal borides (MBs) are the building blocks of many complexes and materials, and they present unique electronic structures with interesting and peculiar ...
Constantinos Demetriou, Christina Eleftheria Tzeliou, Alexandros Androutsopoulos, Demeter Tzeli   +3 more
doaj   +1 more source