Search engine for discovering works of Art, research articles, and books related to Art and Culture
Javascript must be enabled to continue!
Mechanism of the TiNi Martensitic Transformation and the Crystal Structures of TiNi-II and TiNi-III Phases
View through CrossRef
Based on combined x-ray and neutron-diffraction data, an inference for the coexistence of the B2(CsCl) and P3̄m1 structures in the TiNi-II phase is made. Other experimental evidence indicates the proportion of the B2 to P3̄m1 structures to depend critically on the thermal and mechanical history of the alloy. Through a mechanism of an inhomogeneous-but-cooperative atomic shear in the 〈111〉B2 direction and a factor sequence, −(0−1−1̄)n− in the (110)B2 plane, the B2 and P3̄m1 structures transform into P1̄ abd P6/m structures, respectively, during the TiNi-II to TiNi-III martensitic transformation. Subsequent submicrotwinning at atomic level of the P1̄ structure leads to the P1 structure. Therefore, the TiNi-III (``martensite'') phase may consist of the P1̄, P1, and P6/m structures.
Title: Mechanism of the TiNi Martensitic Transformation and the Crystal Structures of TiNi-II and TiNi-III Phases
Description:
Based on combined x-ray and neutron-diffraction data, an inference for the coexistence of the B2(CsCl) and P3̄m1 structures in the TiNi-II phase is made.
Other experimental evidence indicates the proportion of the B2 to P3̄m1 structures to depend critically on the thermal and mechanical history of the alloy.
Through a mechanism of an inhomogeneous-but-cooperative atomic shear in the 〈111〉B2 direction and a factor sequence, −(0−1−1̄)n− in the (110)B2 plane, the B2 and P3̄m1 structures transform into P1̄ abd P6/m structures, respectively, during the TiNi-II to TiNi-III martensitic transformation.
Subsequent submicrotwinning at atomic level of the P1̄ structure leads to the P1 structure.
Therefore, the TiNi-III (``martensite'') phase may consist of the P1̄, P1, and P6/m structures.
Related Results
Biocompatible PEG Grafting on DLC-coated Nitinol Alloy for Vascular Stents
Biocompatible PEG Grafting on DLC-coated Nitinol Alloy for Vascular Stents
The surfaces of Nitinol (TiNi), a popular metal alloy for arterial stents were thin-coated with diamond-like carbon (DLC) and then grafted with poly(ethylene glycol) (PEG) to incre...
Martensitic phase transformation in TiNi
Martensitic phase transformation in TiNi
AbstractFrom temperature dependent perturbed angular correlation (PAC) measurements (77–873 K) in equiatomic TiNi intermetallic alloy, martensitic phase transformations have been o...
Wear Behavior of TiNi and TiNi-TiC Clads Deposited by TIG Surfacing Process
Wear Behavior of TiNi and TiNi-TiC Clads Deposited by TIG Surfacing Process
This paper deals with the investigation of wear behavior of TiNi and TiNi-TiC clads applied to plain carbon steel by tungsten inert gas (TIG) surfacing process. In this regard, bal...
A New Prototype Two‐Phase (TiNi)–(β‐W) SMA System with Tailorable Thermal Hysteresis
A New Prototype Two‐Phase (TiNi)–(β‐W) SMA System with Tailorable Thermal Hysteresis
AbstractThe Ti–Ni–W two‐phase shape memory alloy (SMA) thin film system is presented as a prototype for new SMAs with tailorable thermal transformation hysteresis (ΔT). The concept...
Two-dimensional function photonic crystal
Two-dimensional function photonic crystal
Photonic crystal is a kind of periodic optical nanostructure consisting of two or more materials with different dielectric constants, which has attracted great deal of attention be...
The Formation Mechanism of Nanocrystals after Martensitic Transformation
The Formation Mechanism of Nanocrystals after Martensitic Transformation
Understanding the ultrafine substructure in freshly formed Fe-C martensite is the key point to reveal the real martensitic transformation mechanism. As-quenched martensite, whose t...
Sorption Behaviors of Light Lanthanides(III) (La(III), Ce(III), Pr(III), Nd(III)) and Cr(III) Using Nitrolite
Sorption Behaviors of Light Lanthanides(III) (La(III), Ce(III), Pr(III), Nd(III)) and Cr(III) Using Nitrolite
The sorption of light lanthanides(III) (La(III), Ce(III), Pr(III), Nd(III)) and chromium(III) ions from acidic solutions on Nitrolite was studied at varying ions concentrations, pH...
Electronic density of states in TiNi II and TiNi III
Electronic density of states in TiNi II and TiNi III
The electronic charge transfer during the TiNi martensitic transition is pictured as a shift of the s band relative to the d band. Such a description not only is consistent with th...