Results 201 to 210 of about 641,862 (248)
Some of the next articles are maybe not open access.
BIFURCATION AND STABILITY OF MARTENSITIC TRANSFORMATION DYNAMICS
International Journal of Bifurcation and Chaos, 2008In this paper, we have studied the mathematical properties and their physical implications of a system of nonlinear ordinary differential equations with two variables and six parameters, which was proposed to model the martensitic transformation of shape memory alloys.
Lihua Jin, Yongzhong Huo
openaire +2 more sources
The nature of martensitic transformations
Materials Science and Engineering, 1979Abstract Theoretical concepts are described which explain the structural and kinetic peculiarities of martensitic transformations. A martensitic transformation is considered as a first order phase transition in solids that proceeds under conditions where the initial phase maintains metastability.
A.L. Roitburd, G.V. Kurdjumov
openaire +1 more source
The Martensitic Transformation in Cobalt
Journal of Applied Physics, 1967The properties of the fcc to hcp transformation in cobalt single-crystal whiskers have been determined. Studies of the crystallographic properties and dislocation structure using optical, standard x-ray diffraction, and high-resolution x-ray diffraction topographic techniques are herein reported.
R. T. Johnson, R. D. Dragsdorf
openaire +1 more source
On the nucleation of the martensite transformation
Nature, 1978THE standard description of the austenite–martensite transformation includes the statement that once the material reaches the martensite start temperature, or below, then the transformation occurs immediately1. Hence, if a nucleus is present in the material, then growth occurs to an extent determined by the transformation temperature.
J. M. GALLIGAN, T. GAROSSHEN
openaire +1 more source
On Martensitic Transformation Cycles
International Journal of Materials Research, 1995Complete martensitic transformation cycles require subsequent full transformation into the low temperature phase (α M , martensite) and the high temperature phase (β or Υ, for Fe-alloys austenite). Cycles can be caused by changes in temperature alone, shear stress alone, or various combinations of both.
openaire +1 more source
Martensitic Phase Transformations
1983AbstractThis chapter concentrates on very low-temperature martensitic transformations, which are of great concern for cryogenic applications and research. The principal transformation characteristics are reviewed and then elaborated. The material classes or alloy systems that exhibit martensitic transformations at very low temperatures are discussed ...
openaire +1 more source
Incompleteness of martensite transformations
Soviet Physics Journal, 1981The factors that lead to the retention of residual austenite below the temperature at the completion of the transformation are examined within the scope of the phenomenology based on the balance of motive forces in a martensite transformation.
openaire +1 more source
On the Hysteresis in Martensitic Transformations
2003The paper proposes an explanation of the hysteresis in shape memory alloys using energy minimization in nonlinear elasticity and the entropy criterion. The stored energy has two wells describing the two phases. At elongations from some interval, the minimum energy is realized on two-phase mixtures.
openaire +1 more source
Martensitic and “normal” transformations
Bulletin of the Russian Academy of Sciences: Physics, 2009An analysis of the experimental data shows that various structural kinetic forms of polymorphic transformations (from low-temperature athermal martensitic to high-temperature thermally activated “normal”) are due to the superposition of athermal lattice rearrangement (athermal martensitic transformation) and relaxation processes.
openaire +1 more source

