Stress-induced detwinning and martensite transformation in an austenite Ni–Mn–Ga alloy with martensite cluster under uniaxial loading
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چکیده
منابع مشابه
Transformation potential predictions for the stress-induced austenite to martensite transformation in steel
The stress-induced transformation behavior of retained austenite is considered in this work. With the development of transformationinduced plasticity (TRIP) steels this deformation mode is of growing importance. Twinned martensite structures were calculated using the crystallographic theory of martensite. An available work criterion was used to predict the transformation potentials for 16 diffe...
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Developing numerical methods for predicting microstructure in materials is a large and important research area. Two examples of material microstructures are Austenite and Martensite. Austenite is a microscopic phase with simple crystallographic structure while Martensite is one with a more complex structure. One important task in materials science is the development of numerical procedures whic...
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Ball & Carstensen [2, 3], theoretically investigated the possibility of the occurrence of non-classical austenitemartensite interfaces and studied the cubic-to-tetragonal case extensively. Here we aim to present an analysis of such interfaces recently observed by Seiner et al. [12] in CuAlNi single crystals, undergoing a cubic-toorthorhombic transition. We show that they can be described by the...
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The stabilization of retained austenite was studied via a two-step cooling procedure. Alloys with M , temperatures below 0 OC were used. It was found that the martensitic transformation starting temperature, M,, was lowered to M,' during the second step of cooling. With increasing the amount of previously formed martensite, the difference in the transformation starting temperatures, AM, (= M,M,...
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In shape memory alloys the Thermoelastic Martensitic Transformation (TMT), intrinsically stepwise, can be either thermally induced or stress-induced. Moreover, it has already been shown that an extrinsic fragmentation of thermally induced transformation can be stimulated ("Step-wise Martensite to Austenite Reversible Transformation", SMART) by means of Incomplete Cycles on Heating (ICHs): the S...
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ژورنال
عنوان ژورنال: IUCrJ
سال: 2019
ISSN: 2052-2525
DOI: 10.1107/s2052252519003208