Strain Localization during Diametral Compression of ZrO2(Y2O3) Ceramics


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Deformation behavior of ZrO2−Y2O3 ceramics under conditions of diametral compression has been studied by method of digital image correlation. Spatiotemporal patterns of strain localization along the axis of a deformed sample (εxx(x)) and across this axis (εyy(y)) were obtained. It is established that the εxx and εyy deformations accumulated during the diametral compression test are inhomogeneously distributed over the sample. This is manifested by variation of the microstructure characteristics such as the size of the coherently diffracting domains of a tetragonal phase and microstresses and leads to the tetragonal–monoclinic phase transformation. This pattern of strain localization is correlated with the observed inhomogeneity of microstresses arising in the material volume.

作者简介

I. Sevostyanova

Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences

编辑信件的主要联系方式.
Email: Sevir@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055

T. Sablina

Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences

Email: Sevir@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055

V. Gorbatenko

Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences

Email: Sevir@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055

S. Kulkov

Institute of Strength Physics and Materials Science, Siberian Division, Russian Academy of Sciences; Tomsk State University

Email: Sevir@ispms.tsc.ru
俄罗斯联邦, Tomsk, 634055; Tomsk, 634050

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