Deformation-Induced Interfacial Interaction in Elastically-Plastically Deformed Single Crystals of CdxHg1−xTe
B. P. Koman
Ivan Franko National University of Lviv, 1 Universytetska Str., UA-79000 Lviv, Ukraine
Received: 14.11.2016; final version - 13.08.2017. Download: PDF
In this paper, features of deformation-induced interfacial interaction in uniaxial loaded crystals and its contribution to the formation of a stressedly plastic state are analysed. As found, the uniaxial deformed crystal is a complex structure including the following interphase-interacting elements: 1) the ‘debris’-layer, which is formed in the previous stage of pseudo-elastic deformation in the crystal surface region, and the bulk of a crystal; 2) the locally fragmented cells within the bulk of a crystal, which are disoriented at certain angles relatively to each other and characterized by different Young’s moduli Е1,…, Еn. The behaviour of loading diagram is determined by interaction of the two types: between the ‘debris’-layer, which has the highest Young’s modulus, and the bulk of deformed crystal as well as directly between the local cells in the bulk of fragmented structure of a crystal. In deformed CdxxHg1−xTe crystals, new types of dissipative structures are revealed. The energy parameters of interfacial interactions caused by mechanical incompatibility of adjoining regions and their correlation with the rate of strain hardening θ at its stage L2 are estimated.
Key words: interfacial interaction, deformation, deformation fragments, Young’s modulus, dissipation.
URL: http://mfint.imp.kiev.ua/en/abstract/v39/i08/1129.html
DOI: https://doi.org/10.15407/mfint.39.08.1129
PACS: 05.65.+b, 62.20.de, 68.35.Dv, 68.35.Gy, 68.35.Md, 68.55.J-, 81.40.Jj
Citation: B. P. Koman, Deformation-Induced Interfacial Interaction in Elastically-Plastically Deformed Single Crystals of CdxHg1−xTe, Metallofiz. Noveishie Tekhnol., 39, No. 8: 1129—1148 (2017)