Results 41 to 50 of about 5,233 (267)

Dislocation-twin-precipitate synergy imparts 2.3 GPa yield strength and 18.2% ductility in MPEA at 77 K

Materials Research Letters
Achieving an exceptional strength-ductility synergy is essential for cryogenic structural materials. However, ultrahigh-strength alloys frequently suffer from limited ductility, which restricts ductility.
Guidong Chen, Fei Liu, Yuanbiao Tan, Hao Fu, Wei Shi, Siyuan Wei, Upadrasta Ramamurty, Song Xiang   +7 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Slip Localization Intensification Mediated by Grain Boundary Sliding in a Polycrystalline Nickel‐Based Superalloy

Advanced Engineering Materials, EarlyView.
The temperature dependence of fatigue behavior in nickel‐based superalloys is investigated through high‐resolution measurements of plastic localization. While increasing temperature reduces localization and enhances fatigue performance in René 88DT, Inconel 718 exhibits a sharp degradation at intermediate temperature due to intensified slip ...
M. Calvat, D. Anjaria, I. Woo, C. Bean, D. Texier, J. C. Stinville   +5 more
wiley   +1 more source

Biocompatible Composite Filaments Printable by Fused Deposition Modelling Technique: Selection of Tuning Parameters by Influence of Biogenic Hydroxyapatite and Graphene Nanoplatelets Ratios

Biomimetics
The proposed strategy for the extrusion of printable composite filaments follows the favourable association of biogenic hydroxyapatite (HA) and graphene nanoplatelets (GNP) as reinforcement materials for a poly(lactic acid) (PLA) matrix.
Aura-Cătălina Mocanu, Andreea-Elena Constantinescu, Mădălina-Andreea Pandele, Ștefan Ioan Voicu, Robert-Cătălin Ciocoiu, Dan Batalu, Augustin Semenescu, Florin Miculescu, Lucian-Toma Ciocan   +8 more
doaj   +1 more source

In situ correlation between metastable phase-transformation mechanism and kinetics in a metallic glass

Nature Communications, 2021
The competition between the formation of different phases and their kinetics need to be clearly understood to make materials with on-demand and multifaceted properties.
Jiri Orava, Shanoob Balachandran, Xiaoliang Han, Olga Shuleshova, Ebrahim Nurouzi, Ivan Soldatov, Steffen Oswald, Olof Gutowski, Oleh Ivashko, Ann-Christin Dippel, Martin v. Zimmermann, Yurii P. Ivanov, A. Lindsay Greer, Dierk Raabe, Michael Herbig, Ivan Kaban   +15 more
doaj   +1 more source

Reactivity of Carbon Based Materials for Powder Metallurgy Parts and Hard Metal Powders Manufacturing

Journal of the Japan Society of Powder and Powder Metallurgy, 2016
Carbon is a key element for powder metallurgy. For example, carbon is the basic alloying element in PM sintered steel, and carbon powders are used as a carbon source for the production of hard metals. However, there are only a few studies about the mechanisms of carbon dissolution and reactivity in dependence on the carbon sources with solid metals ...
GILARDI, Raffaele, ALZATI, Luigi, ORO, Raquel, HRYHA, Eduard, NYBORG, Lars, BERG, Sigurd, RADICCHI, Luigi   +6 more
openaire   +2 more sources

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

Thermodynamic assessment of the Al-Mo-V ternary system [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy, 2017
Thermodynamic assessment of the Al-Mo-V ternary system was performed by means of the CALPHAD (CALculation of PHAse Diagram) approach based on the thermodynamic descriptions of three constitutive binary systems (Al-Mo, Al-V and Mo-V) as well as ...
Hu B., Yao B., Wang J., Zhao J.-R., Min F.-F., Du Y.   +5 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

Management elements for the spatial organization of enterprises from the metallic materials industry

MATEC Web of Conferences, 2018
The spatial organization of enterprises is of great importance for the metallic materials industry (metallurgy), given the diversity and complexity of the technological processes and the related equipment.
Costoiu Mihnea, Ioana Adrian, Semenescu Augustin, Marcu Dragos, Polifroni Massimo   +4 more
doaj   +1 more source