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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Refractory Metals 2018
Presentation Title Tensile Response of Binary Mo-Si Solid Solution Alloys
Author(s) Xiang Yu, Sharvan Kumar
On-Site Speaker (Planned) Xiang Yu
Abstract Scope Mo-Si-B alloys are being considered as possible candidates for high-temperature applications beyond the capabilities of Ni-based superalloys. The Mo-rich solid solution phase in these alloys is anticipated to provide low-temperature fracture toughness as well as significantly influence their creep resistance. The solubility of Si in Mo is believed to be ≤ 0.3 wt.% below 1200oC. In this work, recrystallized Mo-0.2 wt. % Si and Mo-0.3 wt. % Si alloys were tested in uniaxial tension as a function of temperature and strain rate in vacuum and results are compared to previous data on recrystallized CP Mo and a Mo-0.1 wt. % Si alloy. These alloys exhibit serrated flow in the temperature range 700oC~800oC at 510-4/s and 700oC~1000oC at 510-6/s. Post-deformed microstructures were examined in the TEM and were indicative of more thermally activated cross slip and climb at high temperatures. These results will be presented and implications discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


A Metallurgical Study of Pressure Resistance Welded Molybdenum Based Materials
A Study on the Potential Analogous Rhenium Effect of Manganese in Tungsten-molybdenum Alloys Prepared by Mechanical Alloying
Alloying Behaviour and Properties of Tetragonal Nb5Si3
Assessments of the Mo-Si-X-(B) System for High Temperature Structural Application Potentials
Characteristics of Dynamic Abnormal Grain Growth in Mo and Ta
Effect of Oxide Coating on the Fusion Welding of Molybdenum Tubing
Fabrication of Tungsten Nanopowder by Combustion-based Method
Fracture Toughness Evaluation and Microstructural Characterization of Drawn Tungsten Wires
High Ductility in Bulk Polycrystalline Tungsten Produced by Equal Channel Angular Extrusion
High Temperature Oxidation Behaviors of Refractory Complex Concentrated Alloys (RCCAs)
Mechanical Behavior of a Three-phase Mo-Si-B Alloy Produced by Reaction Synthesis
Microstructure and Mechanical Properties of Cr-Si High-temperature Alloys
On the Design and Selection of Nb In Situ Composites
Opportunities for BCC Refractory-metal-based Superalloys
Oxidation and Creep Behavior of Mo-Si-Ti Alloys
Oxidation Resistance of W Substituted Mo-Si-B
Synthesis of MoC-graphite Composite by High-energy Ball Milling
Tensile Response of Binary Mo-Si Solid Solution Alloys

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