NIOBIUM EFFECT ON BASE METAL AND HEAT AFFECTED ZONE MICROSTRUCTURE OF GIRTH WELDED JOINTS
Acta Metallurgica Slovaca, 2017 The development of steels for line pipes during the last decades has been driven by the need to obtain improved combinations of high strength, toughness, weldability on industrial scale at affordable prices.
Andrea Di Schino +1 more
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The inventions in nanotechnological area increase the efficiency of construction, housing and communal services and adjacent economic fields [PDF]
Нанотехнологии в строительстве, 2014 The review gives brief description of inventions in nanotechnological area: the production method for silver nanoparticles with modified ligand shell in highviscosity matrix (RU 2526967); structures containing molecular structures with high aspect ratio
VLASOV Vladimir Alexeevich
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Journal of Materials Research and Technology, 2020 Cylinder head is one of the most important parts of heated components in the engine, while cracking due to low strength and large residual stress at high temperature is the main failure mode of cylinder head.
Sining Pan +3 more
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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. +5 more
core +1 more source
Ultrathin niobium carbide alleviates colitis through absorbing ROS
Materials & Design, 2022 Inflammatory bowel disease (IBD) is a chronic disease and has become a global concern, which greatly reduces the quality of patients’ life. It is generally believed that enhanced production of reactive oxygen species (ROS) contributes to the progression ...
Wenfang Xiong +6 more
doaj +1 more source
Effect of the morphology of the martensite-austenite phase on fracture of the weld heat affected zone in vanadium and niobium microalloyed steels [PDF]
, 2010 In multipass welding, the intercritically reheated coarse grained heat affected zone demonstrates the worst toughness in welded joint, since it contains a high-carbon martensite with some retained austenite, known as M-A phase, which is brittle and ...
Baker, T.N., Li, Y.
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High‐Pressure Carbonaceous Phases as Minerals
Geophysical Monograph Series, Page 11-23., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Oliver Tschauner
wiley +2 more sources
Microstructure and wear resistance of high chromium cast iron containing niobium [PDF]
China Foundry, 2014 In the paper, the effect of niobium addition on the microstructure, mechanical properties and wear resistance of high chromium cast iron has been studied.
Zhang Zhiguo, Yang Chengkai, Zhang Peng
doaj
Tikrit Journal of Engineering Sciences, 2012 In the present work the relationship between the microstructure and the hardness of the Steel both with and without an addition of niobium was studied. Investigation by direct observation using optical microscopy was carried out. The purpose of this work
Hiam Razzak Kadhum
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Journal of Materials Research and TechnologyThis research presents a novel approach to beneficiate ferroniobium from Bayan Obo tailings (BOT) by combining selective carbonization roasting with magnetic separation.
Shaoyang Chang +6 more
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