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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Mechanical Characteristics and Application Properties of Metals and Non-metals for Technology: An EPD Symposium in Honor of Donato Firrao
Presentation Title N-13: Young’s Modulus and Hardness of Metal Amorphous Nanocomposites (MANCS) Determined by Nanoindentation
Author(s) Yuval Krimer, Michael E. McHenry
On-Site Speaker (Planned) Yuval Krimer
Abstract Scope Metal amorphous nanocomposites (MANCs) are emerging materials offering lower losses at high frequencies than silicon steel and higher saturation inductions than amorphous metals. These materials can be crystallized under applied stress to induce magnetic anisotropy. Um et al. reports hardness obtained by nanoindentation in FINEMET (Fe71.1Si18.5B6.3Nb3Cu1.1) and NANOPERM (Fe91Zr7B2), with results correlated to volume fraction crystallized (VFC). However, no mechanical properties studies have been performed on emerging Co based materials. This study investigates the Young’s modulus and hardness of Co74.6Fe2.7Mn2.7Nb4Si2B14, as function of annealing temperature. Co74.6Fe2.7Mn2.7Nb4Si2B14 shows Young’s modulus increase from 114 GPa as-cast to 118 GPa at 430 oC, and then decrease with higher annealing temperature to 79 GPa at 540 oC. Nanohardness increases from 12 GPa as-cast to 14 GPa at 430 oC, then decreases to 2 GPa at 540 oC. DSC measurements and prior work suggest that onset of crystallization occurs at 420 oC.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


Corrosion Micro-scale Features and Alloy Microstructure Effects on Fatigue Initiation of AA7050-T7451
Creep-oxidation-small Fatigue Crack Interaction in Grade 91 Steel
Effect of Initial As-cast Structure on the Evolution of Microstructure and Texture and Finally Ridging Behavior of Ferritic Stainless Steel
Embrittlement in Cast Superaustenitic Stainless Steel
Fatigue Behavior of Metastable Austenitic Stainless Steel AISI 304 under Different Test Frequencies
Finding the Small Charge Explosion Center by Analyzing Occurrence of Mechanical Twins in FCC Metals
Flow Behavior of High Strength Aluminum Alloy after Cold Rolling
Friction and Wear Characteristics of 304 Stainless and Rolled Upper Bainitic Rail Steels
Influence of Surface and Near Surface Defects Caused by Laser Beam Cutting on the Fatigue Behavior of Plate-like Shaped Parts Made of Metastable Austenitic Stainless Steel AISI 304
Integration of Metallography, Fractography and Mechanical Properties Tests as a Key to Failure Analysis of Quenched and Tempered Large Steel Components
Microstructure and Mechanical Properties of Low-carbon Ferritic and Bainitic Steels with Different Contents of Mo, Ti and Nb for Seismic and Fire-resistant Applications
N-12: Alumina Feeding System Changes in Aluminum Electrochemical Cell with D18 Technology for Energy Efficiency (Case Study: Almahdi- Hormozal Aluminum Smelter)
N-13: Young’s Modulus and Hardness of Metal Amorphous Nanocomposites (MANCS) Determined by Nanoindentation
Production of Cu2O Powder Using Electrodeposition Method
Quench Embrittlement and Intergranular Fracture in High Carbon Steels
Sensitization Effects on Environmentally-assisted Cracking in 5XXX Al Alloys
Tensile Behavior and Microstructure of TWIP Steels from Low to Warm Temperatures
Thermo-Calc of the Phase Diagrams of the Nb-N System
Welding Between Steels and Aluminum Alloys for Hybrid Car-body Applications

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