English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

For the first time, transmission electron microscopy is applied to the study of stainless steel specimens subjected to prolonged high-frequency (50 MHz) external hydrodynamic effects (EHDE) under high pressure (2–3 GPa) in a device of special design. It is found that, due to EHDE, the solid surface layer of the steel, up to 100 μm thick, undergoes a strain-induced martensitic transformation with the appearance of a finely twinned and ɛ-phase crystal structure. In the following intermediate layers located at a depth of 100 to 200 μm, traces of fragmentation with a dislocation and twinned substructure inside the austenite grains are found, which are caused by work hardening of austenite in the process of direct and reverse -ɛ- martensitic transformation. The features of -austenite, ɛand -martensite microstructures are studied in detail. It is concluded from the analysis of the obtained and known data that thermo-, baroand elastic-plastic mechanisms of martensitic transformations take place under multicycle highfrequency external effects. The martensitic transformation must be accompanied by baroand magnetocaloric exothermal effects, by direct martensitic transformation and, consequently, endothermic effects during reverse transformation.

diagnostics, resource and mechanics of materials and structures

The features of structural-phase transformations in the 12Kh18N10T stainless steel subjected to high-frequency hydrodynamic effects under high pressure