Results 21 to 30 of about 5,233 (267)

Studies on Obtaining Porous Hydroxyapatite Structures Using Porogen Agents of Natural Origin

open access: yesProceedings, 2019
Hydroxyapatite is a calcium phosphate-based biomaterial utilized both in the medicine field(bone cement, scaffold, drug-delivery) and in the heritage field (stone conservation) [...]
Denisa-Loredana Copilu   +5 more
doaj   +1 more source

Development of a method for determination of metallic iron content within hot briquette iron (HBI) for steelmaking [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2016
The growing use of metallic iron in metallurgy and industrial chemical applications requires a fast, easy and cheap method for the determination of metallic iron, not merely in recyclable materials, such as iron pellets, reduced iron mill scale ...
Morcali M.H.
doaj   +1 more source

High-Temperature Solid Lubricants and Self-Lubricating Composites: A Critical Review

open access: yesLubricants, 2022
Solid lubricants are described as solid materials of intentionally introduced or in situ formed on contact surfaces in relative motion for the purpose of lowering friction and wear and providing protection from damage.
Jia-Hu Ouyang   +4 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

Effect of Solution Treatment on Mechanical Properties and Wear Resistance of Alloyed High-Manganese Steel

open access: yesMetals
We explored the effects of different solution treatment temperatures on the microstructure, mechanical properties and wear resistance of alloyed high-manganese steel, as well as the correlations among the three parameters.
Xiya Qiao   +4 more
doaj   +1 more source

Mechanical, In Vitro Corrosion Resistance and Biological Compatibility of Cast and Annealed Ti25Nb10Zr Alloy

open access: yesMetals, 2017
Compared to other alloys, Ti6Al4V is the most used in medicine. In recent years, concerns regarding the toxicity of Al and V elements found in the composition of Ti6Al4V have drawn the attention of the scientific community, due to the release of Al or V ...
Cosmin M. Cotrut   +10 more
doaj   +1 more source

Microstructure and Mechanical Properties of Composites Obtained by Spark Plasma Sintering of Al–Fe66Cr10Nb5B19 Metallic Glass Powder Mixtures

open access: yesMetals, 2021
At present, metallic glasses are evaluated as alternative reinforcements for aluminum matrix composites. These composites are produced by powder metallurgy via consolidation of metallic glass-aluminum powder mixtures.
Dina V. Dudina   +12 more
doaj   +1 more source

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

open access: yesAdvanced 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   +5 more
wiley   +1 more source

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