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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Refractory Metals 2016
Presentation Title Size Effect of Intermetallic Compounds on Fracture Toughness of Mo-Si-B Alloys
Author(s) Jong Min Byun, Su-Ryong Bang, Myung-Jin Suk, Sung-Tag Oh, Young Do Kim
On-Site Speaker (Planned) Jong Min Byun
Abstract Scope Mo-Si-B alloys have an excellent high-temperature properties due to the formation of intermetallic compounds(IMCs) phases. However, these IMCs phases are too brittle at room temperature(RT). Therefore, many researches for complexation with ductile a-Mo phase have been attempted to overcome this drawback. Considering the characteristic of a-Mo phase, microstructure which has uniformly distributed IMCs phases in continuous a-Mo phase is most ideal. But, common fabrication methods are difficult to control the microstructure. Thus, to enhance the fracture toughness of Mo-Si-B alloys, advanced fabrication method and researches on microstructure control and its Characteristic analysis are required. Especially, effect of size and distribution of IMCs phases on the fracture toughness of Mo-Si-B alloys should be studied. In this study, Mo-Si-B alloys with IMCs phases of different sizes were fabricated by novel fabrication method. Fracture toughness of Mo-Si-B alloys according to refinement of IMCs phases were investigated at RT.
Proceedings Inclusion? Planned: A print-only volume


Effect of Silicon on Texture of Niobium
Etched Surface of CVTD Single Crystal Tungsten Coating after Serving under High Temperature
Fracture of Severely Plastically Deformed Niobium and Tantalum
High Temperature Properties of Directionally Solidified Nb-rich Nb-Si-Cr Eutectics
Improving the Performance of Nb-Silicide Based Refractory Alloys through a Novel Cold Crucible Directional Solidification
Influences of Rare Earth on Microstructures and Mechanical Properties of Functionally Graded Cemented Carbides
Introduction of Precisely Controlled Microstructural Defects into SRF Cavity Nb Sheet and Their Impact on Local Superconducting Properties
Manufacturing of Bulk Ultrafine Grain Tungsten from Nanocrystalline Tungsten Powder and Its Potential Application for Nuclear and Fusion Reactors
Mechanical Properties of Cold-rolled Tungsten at Different Strain Rates
Micro-Mechanical Characterization of Micro-Architectured Refractory Metal Coatings
Micromechanical Testing of Multi Compositional Tungsten Thin Film Alloys
Microstructure and Properties of a Ternary Eutectic Mo-Si-B Alloy
On Plasticity of Polycrystalline Rhenium at Room Temperature
Reactive Spark Plasma Sintering of Tungsten Borides Using Elemental Tungsten and Boron Powders
Size Effect of Intermetallic Compounds on Fracture Toughness of Mo-Si-B Alloys
Stress Accommodation in Plastic Zone Ahead Crack Tip in Iridium
The Initiation and Propagation of Dynamic Abnormal Grain Growth in Refractory Metals
Thermally Activated Deformation Processes in Body-Centered Cubic Cr – How Microstructure Influences Strain-Rate Sensitivity

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