Results 71 to 80 of about 5,347,175 (310)

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Red Mud as an Additive in the Extrusion of Protein‐Based Porous Materials

Macromolecular Materials and Engineering
This study explores the dual challenge of enhancing the properties of protein‐based foams produced from agricultural by‐products through the incorporation of red mud waste from alumina production.
Saga Holmström, Mercedes Jiménez‐Rosado, Rodrigo Oliver‐Simancas, Amparo Jiménez‐Quero, Antonio José Capezza, Frederico Marques Penha   +5 more
doaj   +1 more source

Towards the Circularity of the EU Steel Industry: Modern Technologies for the Recycling of the Dusts and Recovery of Resources

Metals
The EU steel industry accounts for a crude steel production of 140 Mt/y, provided by the integrated (57%) and electric (43%) routes, which respectively require up to 6.0 and 0.6 MWh/tCrudeSteel of energy input, and emits on average 1.85 and 0.4 tCO2 ...
Marco Simoni, Wolfgang Reiter, Julian Suer, Loredana Di Sante, Filippo Cirilli, Fabio Praolini, Manuel Mosconi, Marta Guzzon, Enrico Malfa, David Algermissen, Johannes Rieger   +10 more
doaj   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Mechanism of ammonium fluoride activation-leaching coupled with asymmetric alternating current electrochemical recovery of key metals from fly ash

Meitan xuebao
Aiming at the high value-added utilization of coal fly ash (CFA), the performance and reaction mechanism of key metals in asymmetric electrochemical recovery were explored.
Xuan LI, Yifei SUN, Peidong SU, Zhaowei QIN, Guifeng ZHAO, Kai ZHANG, Buri SUN, Bowen YU, ABULIKEMU Abuduwake   +8 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Assessing the Potential of Heterotrophic Bioleaching to Extract Metals from Mafic Tailings

Metals
Mafic mine tailings are highly resistant to bioleaching due to their silicate-rich composition, low sulfide content, and strong buffering capacity. This study aimed to assess the potential use of heterotrophic bioleaching to promote the release of metals
Kamalpreet Kaur Brar, Avi Du Preez, Nancy N. Perreault   +2 more
doaj   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Pyrometallurgical Process to Recover Lead and Silver from Zinc Leaching Residue

Recycling
During the roasting, leaching, and electrodeposition of zinc ores, lead–silver residues are produced. These residues contain valuable metals (Pb, Zn, and Ag) and toxic metals (Cd and As).
Cancio Jiménez-Lugos, Manuel Flores-Favela, Antonio Romero-Serrano, Aurelio Hernández-Ramírez, Alejandro Cruz-Ramírez, Enrique Sanchez-Vite, José Ortiz-Landeros, Eduardo Colin-García   +7 more
doaj   +1 more source