Cover Page January-2015-Advanced Materials Letters

Advanced Materials Letters

Volume 6, Issue 1, Pages 8-12, January 2015
About Cover


The Equilibrium Of Martensite Shear Stress At Phase Transistors In TiNi-based Alloy

Victor E. Gunther1, Timofey L. Chekalkin1*, Ji-Soon Kim2, Valentina N. Hodorenko1

1Tomsk State University, Research Institute of Medical Materials and Shape Memory Implants, Tomsk, Russia

2University of Ulsan, School of Materials Science and Engineering, Ulsan, South Korea

Adv. Mater. Lett., 2015, 6 (1), pp 8-12

DOI: 10.5185/amlett.2015.5597

Publication Date (Web): Dec 28, 2014

E-mail: tc77@rec.tsu.ru

Abstract

Thermoelastic martensitic transformations play a fundamental role in the shape memory effect and related phenomena. Owing to their unique crystallographic and thermomechanical behaviour, martensitic transformations have generated considerable research in the areas of crystallography, thermodynamics and mechanical behaviour. In the area of thermodynamics a theoretical approach is now added which provides the basis for thermoelastic behaviour through consideration of the Gibbs energy change. In this paper, the interrelation of internal elastic stresses and martensite shear stresses in phase transitions has been defined. A thermoelastic stress equilibrium equation for a wide range of martensitic transformation temperatures has been presented. On the basis of the calculations made, an estimation of dislocation defects formation energy for the TiNi-based alloy has been made. For TiNi-based composition made of TN-10 brand alloy, commercially produced for medical goals, the energy of vacancy formation is about 0.06 kcal/mol. The study and calculations are shown to make clear, using a new approach, the considering of phase transitions in terms of external and internal stresses.

Keywords

Martensite transition, equilibrium equation, TiNi-based alloy, gibbs energy change.

Current Issue

Wearable Healthcare Devices


Nano-Graphene and Its Derivatives for Fabrication of Flexible Electronic Devices: A Quick Review


Natural Fibers as Viable Sources for the Development of Structural, Semi-Structural, and Technological Materials – A Review


Geometrical Characterization of Wire-and-Arc Additive Manufactured Steel Element


Plasma Activated Water Generation and its Application in Agriculture


Development of Advanced Electrode Materials on Porous Silicon for Micropower Formic Acid-Oxygen Fuel Cells 


Water Management within Tragacanth gum-g-polyitaconic Acid Hydrogels


Synthesis and Characterization of Humic Acid-coated Fe3O4 Nanoparticles for Methylene Blue Adsorption Activity


Synthesis and characterization of thermally stable flame retardant thermoplastic polyphosphazenes


Synthesis of Rod-coil Molecules bearing Oligo-Phenylene Vinylene Motifs: Effect of PEO Chain Lengths on the Evolution of Nanostructures Morphology and their Photophysical Properties


Dielectric Properties of Cu based Polymeric Composites in X-band of Microwave Frequency


Critical Association Concentration of Dansyl-Poly (acrylic acid) Synthetized by Redox Polymerization Followed by an Esterification in Aqueous Solution: Spectrophotometric and Tensiometric Studies


Influence of Iron Doping on Structural and Optical Properties of Nickel Oxide Nanoparticles


Upcoming Congress

Knowledge Experience at Sea TM