Design and Fabrication of New Ti-Based Ternary Metallic Glasses Based on Effective Atomic Radius in the Ti Solid Solution Calculated by Ab Initio Calculation

Naoya Shirasawa; Ren Ito; Yorinobu Takigawa; Tokuteru Uesugi; Kenji Higashi

doi:10.4028/www.scientific.net/AMR.922.671

Paper Titles

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Microstructure of Er₂O₃Coating Layer of Hydrogen Penetration Control
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Design and Fabrication of New Ti-Based Ternary Metallic Glasses Based on Effective Atomic Radius in the Ti Solid Solution Calculated by Ab Initio Calculation
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The Correlation between Stacking Fault Energy and the Work Hardening Behaviour of High-Mn Twinning Induced Plasticity Steel Tested at Various Temperatures
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Combined Martensite and Bainite Formation from Austenite Decomposition in HSLA Steel
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Microstructure and Residual Stress Formation during Friction-Stir Welding of Semi-Solid Cast ZK60-RE Magnesium Alloy
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Casting in the Semi-Solid State of ZK60 Magnesium Alloy Modified with Rare Earth Addition
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 922Design and Fabrication of New Ti-Based Ternary...

Design and Fabrication of New Ti-Based Ternary Metallic Glasses Based on Effective Atomic Radius in the Ti Solid Solution Calculated by Ab Initio Calculation

Abstract:

New Ti-based ternary metallic glasses were designed and fabricated. A new parameter called effective atomic radius in the Ti solid solution from ab-initio calculation was used to design of the Ti-based metallic glasses. From the effective atomic radius, Ti-Zr-Mn, Ti-Zr-Fe and Ti-Zr-Co systems can be considered as a new Ti-based ternary metallic glass. And the reported scheme based on the concept of binary eutectic clusters is applied to predict alloy composition which shows glass transition.We prepared the Ti₄₂Zr₂₂Mn₃₆, Ti₄₃Zr₂₉Fe₂₈ and Ti₄₄Zr₃₀Co₂₆ alloy sheets by a single-roller method. It showed that sharp diffraction peak corresponding to crystalline phases could be observed in the XRD spectra of Ti₄₂Zr₂₂Mn₃₆ and Ti₄₃Zr₂₉Fe₂₈. While for alloy with Ti₄₄Zr₃₀Co₂₆ no sharp diffraction peak could be found except broad diffraction halos. This result suggests that a critical eutectic temperature in the phase equilibrium for forming glass phase is around 1000°C.