scholarly journals Crystal Structure of Martensite and Orientation Relationships During Thermoelastic Martensitic Transformations in Ni-Mn-Based Alloys

2019 ◽  
Vol 1 (1) ◽  
pp. 184
Author(s):  
Elena S. Belosludtseva ◽  
Artemy V. Pushin ◽  
Alexey E. Svirid ◽  
Vladimir G. Pushin
Keyword(s):  
Crystal Structure ◽  
Martensitic Transformations ◽  
Orientation Relationships ◽  
Thermoelastic Martensitic Transformations

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Thermodynamic Analysis of Thermoelastic Martensitic Transformations

2004 ◽  
Vol 449-452 ◽  
pp. 1325-0 ◽  
Author(s):  
Yinong Liu
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Experimental Determination ◽  
Thermodynamic Parameters ◽  
Thermodynamic Analysis ◽  
Martensitic Transformations ◽  
Thermoelastic Martensitic Transformations ◽  
The Past ◽  
Concise Overview

This paper is concerned with the application of fundamental thermodynamic theories in the analysis of thermoelastic martensitic transformations in shape memory alloys, with a particular reference to polycrystalline NiTi. The discussion is delivered in two parts. The first part presents a concise overview of the fundamental theories of thermodynamics of thermoelastic martensitic transformations established in the past 30 years. The second part focuses on the principles governing the application of the theories, interpretation of the thermodynamic parameters defined in the theories, experimental determination of the parameters, and some common misperceptions and unjustified assumptions in practice concerning these parameters.

Phase Transformation Crystallography of Lath Martensite

2006 ◽  
Vol 979 ◽  
Author(s):  
Xiao Ma ◽  
R.C. Pond
Keyword(s):  
Phase Transformation ◽  
Habit Plane ◽  
Lath Martensite ◽  
Martensitic Transformations ◽  
Phenomenological Theory ◽  
Orientation Relationships ◽  
Transformation Mechanism ◽  
Ferrous Alloys ◽  
Model Phase ◽  
Good Agreement

AbstractOur current understanding of martensitic transformations has been based on the Phenomenological Theory of Martensite Crystallography developed in the 1950s. Recently, a Topological Model of martensitic transformations has been presented wherein the habit plane is a semi-coherent structure, and the transformation mechanism is shown explicitly to be diffusionless. This approach is used here to model phase transformation crystallography of lath martensite in ferrous alloys. A range of network geometries is predicted corresponding to orientation relationships varying from Nishiyama-Wasserman to Kurdjumov-Sachs. Experimental observations from the literature of the dislocation and disconnection arrays, habit plane and orientation relationship are in good agreement with the model.

Thermoelastic martensitic transformations in ternary Ni50Mn50–z Ga z alloys

2016 ◽  
Vol 42 (1) ◽  
pp. 75-78 ◽  
Author(s):  
E. S. Belosludtseva ◽  
N. N. Kuranova ◽  
E. B. Marchenkova ◽  
A. G. Popov ◽  
V. G. Pushin
Keyword(s):  
Martensitic Transformations ◽  
Thermoelastic Martensitic Transformations
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