Results 11 to 20 of about 337,422 (196)
Metals, 2023 The evolution of the microstructure, the precipitation behavior, and the mechanical performances of Nb-V-Ti micro-alloyed steel prepared under different tempering time were studied using transmission electron microscopy (TEM), X-ray diffraction (XRD ...
Qian Zhao, Zhixia Qiao, Ji Dong
doaj +1 more source
AIP Advances, 2014 Polytype stability is very important for high quality SiC single crystal growth. However, the growth conditions for the 4H, 6H and 15R polytypes are similar, and the mechanism of polytype stability is not clear. The kinetics aspects, such as surface-step
Hui-Jun Guo +9 more
doaj +1 more source
Supported Molybdenum Carbide and Nitride Catalysts for Carbon Dioxide Hydrogenation
Frontiers in Chemistry, 2020 Catalysts based on molybdenum carbide or nitride nanoparticles (2–5 nm) supported on titania were prepared by wet impregnation followed by a thermal treatment under alkane (methane or ethane)/hydrogen or nitrogen/hydrogen mixture, respectively.
Marwa Abou Hamdan +6 more
doaj +1 more source
Modeling of the phase-structural state in a hybrid multicomponent alloy with a high boron content
Фізика і хімія твердого тіла, 2022 The present work is focused on analyzing the thermodynamically equilibrium path of structure formation in a multi-component Fe-W-Mo-Cr-Ti-Mn-Si alloy of tribotechnical purpose, containing 0.72 wt. % C and 2.75 wt. % B is analyzed.
Yu.G. Chabak +7 more
doaj +1 more source
Materials Research Express, 2022 Alloyed high manganese steel is a general type of wear-resistant steel, and its precipitates and austenite matrix grain sizes play an important role in impact abrasive wear behavior.
Zulai Li +5 more
doaj +1 more source
INFLUENCE OF THE CAST IRON’S CHEMICAL COMPOSITION ON THE INTERPHASE DISTRIBUTION OF MN
Nauka ta progres transportu, 2016 Purpose. This paper focuses on obtaining the dependencies of the manganese content in the metallic base (Mno) and its interphase distribution coefficient (KPMn) on the cast iron’s chemical composition in the system Fe–C–Cr – Ni –Mn. Methodology. The cast
V. V. Netrebko, I. P. Volchok
doaj +1 more source
On Measurement and Interpretation of Toughness Behaviour of Carbide Tools [PDF]
, 1981 The actual significance of any definition of toughness behaviour of carbide tools depends on the existence of an interrelation between the quality as defined and the occurrence of chipping and premature failure in cutting.
Kals, H.J.J.
core +2 more sources
Application of CrAlN coatings on carbide substrates in routing of MDF [PDF]
, 2007 This study deals with the development of Chromium Aluminium Nitride (CrAlN) hard coatings (by varying the nitrogen content in the plasma, the target bias voltage, the working pressure and the deposition time) and their characterization by physical and ...
COLLET, Robert +4 more
core +5 more sources
Metals, 2018 The precipitation of (Cr,Fe)23C6 carbide could significantly degrade the mechanical properties of Nb-bearing cast austenitic heat-resistant steels, designed for exhaust components of automotive gasoline engines at 1000 °C.
Yinhui Zhang, Jian Yang
doaj +1 more source
Research status and prospect of Co-phase strengthening in cemented carbide
Cailiao gongchengWC-Co cemented carbide has applied in various fields due to its excellent properties. However， the defects of Co bonding phase in hard alloys， such as low hardness， low wear resistance， and poor high-temperature stability， limit their use.
LIAO Yu, ZHANG Qianwei, HU Qiming
doaj +1 more source