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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 Thermo-Calc of the Phase Diagrams of the Nb-N System
Author(s) Shadia Jamil Ikhmayies
On-Site Speaker (Planned) Shadia Jamil Ikhmayies
Abstract Scope In this work, Thermo-Calc software was used to produce the temperature-N mass percent phase diagram and Gibbs free energy of all obtained phases for the Nb-N system. Two solid single stable phases were observed which are the fcc δ-NbN1-x and hexagonal β-Nb2N, in addition to bcc α-NbN solid solution. Mixed solid stable phases obtained are α-NbN + β-Nb2N and β-Nb2N + δ-NbN1-x). Gas and liquid phases were observed as single phases and mixed with each other or with solid phases. These phases are interesting and they have several technological applications in superconducting microdevices, microelectronic, catalytic probes, and hard coatings. The different phases and their constituents are thoroughly discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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Creep-oxidation-small Fatigue Crack Interaction in Grade 91 Steel
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Effect of Initial As-cast Structure on the Evolution of Microstructure and Texture and Finally Ridging Behavior of Ferritic Stainless Steel
Effect of NaNO2 in Corrosion Inhibition of Micro-alloyed Steel in E20 and E40 Simulated Fuel Grade Ethanol Environment
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
Hot Ductility of X70 Pipeline Steel in Continuous Casting
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
Inhibitive Influence of Cephalexin Compound on Degradation Characteristics of Mild Steel in NaCl Medium
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
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
Young’s Modulus and Hardness of Metal Amorphous Nanocomposites (MANCS) Determined by Nanoindentation

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