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Meeting Materials Science & Technology 2019
Symposium Sintering and Related Powder Processing Science and Technologies
Presentation Title P2-73: Investigation of Mechanical Properties of CoCrFeMnNi High Entropy Alloys Fabricated by Rapid Solidification Process
Author(s) Hyeonjeong You, Kwang-Yong Jeong, Cheenepalli Nagarjuna, RAECHEOL KANG, Soon-Jik Hong
On-Site Speaker (Planned) Hyeonjeong You
Abstract Scope High entropy alloys (HEAs) usually containing at least five principal elements by adding 5~35 at% each element. As a result, high mixed entropy occurs, so that an intermetallic compound is not formed and a single solid solution is formed, so that the mechanical properties are relatively higher than those of the conventional alloy. In this study, we have fabricated FCC structured single phase of CoCrFeMnNi HEAs by the combination of two approaches, and systematically investigated and comparted their mechanical properties. Initially HEAs was fabricated by the casting plus rolling method, and characterized. Secondly, HEAs was fabricated by the powder metallurgy process such as gas atomization, followed by spark plasma sintering. The crystal structure of the specimens from both processes was analyzed by XRD. The fracture surfaces, and cross-sectional micrographs of the HEAs specimens were characterized by SEM. The mechanical properties including the compressive strength, micro vickers hardness were analyzed.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

3D Multiscale-imaging of Processing-induced Defects Formed during Sintering of Alumina
A Novel Approach to Boriding of TZM by Spark Plasma Sintering Method
Analysis of SPS Parameters and Resultant Electrical Response of SPS Sintered Specimens
Characterization of Functionally Graded Rods with High Strength, Good Wear Resistance and Ductility of Titanium Matrix Composites Prepared by Spark Plasma Extrusion
Cold Sintering of Ceramic Materials, Devices and Novel Nanocomposites
Controlling Factors in Flash Sintering of Ceramics
Development of Tungsten Based Plates by Spark Plasma Sintering
Electrochemically-Driven Abnormal Grain Growth of Ionic Ceramics
Glass Sealing of Solid Oxide Fuel Cells (SOFC)
In-situ Monitoring of Interfaces Being Formed as a Functon of Pressure, Temperature and Composition
In-situ Observation of the Internal Structure of an Alumina Green Body during Sintering by Optical Coherence Tomography
Influence of Grain Size on the Entropic Transformation in High Entropy Oxides
Investigation the Effect of CNT and GNP Additions on Densification, Microstructure and Mechanical Properties of B4C Prepared by Spark Plasma Sintering
Kinetics and Densification Behavior during Reaction Sintering of Bulk Titanium Boride (TiB) Nanoceramics by Spark Plasma Sintering (SPS)
Microstructural Control during Sintering of WC-Co
Microstructural Observation and Mechanical Properties of B4C Based Composites Reinforced with CrCoFeMoNi High Entropy Alloy Prepared by Spark Plasma Sintering
Neck Growth in Sintering of Silver Nanowires
P2-107: Influence of Spark Plasma Sintering Processing Parameters and Field Effects on the Microstructure and Mechanical Properties of Advanced Materials
P2-71: Field-induced Mass Transport Phenomena in Flash Sintered High Temperature Ceramics Explored by TEM and In situ SEM
P2-72: Formation Mechanism of Porosity in P-type Bi0.5Sb1.5Te3 Materials and its Influence on Thermoelectric Transport Properties
P2-73: Investigation of Mechanical Properties of CoCrFeMnNi High Entropy Alloys Fabricated by Rapid Solidification Process
P2-74: Study on the Effect of Cu Dispersion on the Thermoelectric Properties of Bi-Sb-Te Alloy
P2-75: Synthesis and Chemical Lixiviation of Nanostructured Calcium-doped Magnesium Aluminate Spinel
Production and Characterization of AlON Ceramics with Different Amount of MgO Addition via Reactive Spark Plasma Sintering
Production and Characterization of B4C- ZrB2 Composites via Spark Plasma Sintering Method
Reactive Sintering and Templated Grain Growth of CuO-doped PIN-PMN-PT Ceramics
Room Temperature Plasticity in Flash-sintered TiO2
Simulation of Densification of Contacting Particles using a Two-dimensional Monte Carlo Model for Solid State Sintering
Simultaneous Multiple Complex Net Shape Components Production by 3D Printing and Spark-Plasma Sintering
Sintering Behavior and Ionic Conductivity of Li1.5Al0.5Ti1.5(PO4)3 Synthesized with Different Precursors
Spark Plasma Sintered Aluminum Oxide Filter for Hot Gas Applications
Spark Plasma Sintering of Soft Magnetic Materials
Spark Plasma Sintering of Titanium Diboride Ceramics with Different Amount of Titanium Addition
Staged Microstructural Study of Flash Sintered Titania
Stochastic Modeling of the Effect of Structural Randomness on the Mechanical Behaviors of 3D Printed Metallic Powders
Surface and Grain Boundary Segregation during Nanopowders Preparation and Sintering
The Role of Grain Boundaries in Nanoscale Sintering: Atomistic and Mesoscale Modeling Studies
Visualization of Sintering in Particle-Based Ink Printed Ni Scaffolds via In Situ X-Ray Tomography

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