Results 81 to 90 of about 6,854 (314)

Desenvolvimento de um modelo constitutivo para análise elasto-plástica de metais porosos sinterizados / [PDF]

, 1999
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico.As teorias da plasticidade e a sua implementação voltada a metais porosos se trata de um tópico ainda em desenvolvimento e desafiador em termos de progressos a serem obtidos ...
Justino, Junior Gervasio
core  

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

Ab initio framework for deciphering trade-off relationships in multi-component alloys

npj Computational Materials
While first-principles methods have been successfully applied to characterize individual properties of multi-principal element alloys (MPEA), their use in searching for optimal trade-offs between competing properties is hampered by high computational ...
Franco Moitzi, Lorenz Romaner, Andrei V. Ruban, Max Hodapp, Oleg E. Peil   +4 more
doaj   +1 more source

Study of hydrogen-induced delayed damage in medium manganese steel during in situ hydrogen charging: Role of heterogeneous structure in crack initiation and propagation

Materials & Design
Medium manganese (Mn) steel stands out as an exemplary representative of the latest generation of advanced high-strength steels intended for for automotive applications, attracting considerable interest due to its well-optimized microstructure and ...
Tao Xi, Zhishan Mi, Hao Fu, Qizhe Ye, Song Xiang, Bing Yang, Juanping Xu, Yu Yan, Jinxu Li   +8 more
doaj   +1 more source

Gigacycle fatigue response of tool steels produced by powder metallurgy compared to ingot metallurgy tool steels

, 2010
In this work, the gigacycle fatigue response of several tool steel grades, produced by ingot metallurgy and powder metallurgy, has been studied using an ultrasonic frequency resonance testing device.
Betzwar-Kotas, Agnieszka, Danninger, Herbert, Christian Gierl, Gierl, Christian, Herbert Danninger, Christian Sohar, Agnieszka Betzwar-Kotas, Weiss, Brigitte, Brigitte Weiss, Sohar, Christian   +9 more
core   +1 more source

Evaluation of Plasticity and Creep Parameters From Tensile Stress–Strain Data for a Range of Strain Rates

Advanced Engineering Materials, EarlyView.
This plot compares experimental tensile stress–strain curves (with 4 different strain rates) and corresponding modelled curves (obtained using the optimised sets of Voce and Miller–Norton parameter values shown). The inferred M‐N values, characterizing the creep, are very similar to those obtained via conventional creep testing.
S. Ooi, R. P. Thompson, T. W. Clyne
wiley   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Sustainable Lavender Extract-Mediated Synthesis of Silver Nanoparticles and Their Use in Fabricating Antibacterial Polymer Nanocomposites

Nanomaterials
This study focuses on the development of antibacterial polymer nanocomposites based on biologically synthesized silver nanoparticles (AgNPs) and polyvinyl alcohol (PVA) as the polymer matrix.
Lívia Mačák, Oksana Velgosová, Erika Múdra, Marek Vojtko, Silvia Ondrašovičová   +4 more
doaj   +1 more source

Investigation of the tribological behaviour of WC/TiC based cermets in contact with Al2O3 alumina under high temperature

Journal of the Mechanical Behavior of Materials, 2018
WC/TiC-based cermets are, generally, considered as potential alloys widely used in hot rolling industry because of their interesting properties, namely high resistance to wear and oxidation.
Harouz Riad, Boudebane Said, Lakehal Abdelaziz, Derdy Olivier, Montrieux Henri-Michel   +4 more
doaj   +1 more source

Toward Knowledge‐Based Workflows: A Semantic Approach to Atomistic Simulations for Mechanical and Thermodynamic Properties

Advanced Engineering Materials, EarlyView.
Knowledge‐based atomistic workflows are presented for mechanical and thermodynamic properties. By coupling modular simulations with ontology‐aligned metadata and provenance, Fe case studies on elastic behavior, defects, thermal properties, and Hall–Petch strengthening reveal how FAIR, queryable, and reusable simulation data can be generated. Mechanical
Abril Azócar Guzmán, Hoang‐Thien Luu, Sarath Menon, Tilmann Hickel, Nina Merkert, Stefan Sandfeld   +5 more
wiley   +1 more source