Plastic Flow in a Chernov–Luders Band in Ultrafine-Grained 08G2B Steel
Source abstract
Abstract
Abstract The plastic flow behavior of tensile specimens of ultrafine-grained 08G2B steel prone to strain aging was studied using digital image correlation, electron backscatter diffraction, and microindentation. Standard flat tensile specimens were tested with a constant strain rate in the initial state (after controlled rolling) and after controlled rolling + heating to 680°C for 30 min followed by air cooling. The specimen strained to δ ≈ 3% was observed to have Chernov–Luders bands. Texture analysis and microindentation were carried out in different regions outside, at the front, and within the Chernov–Luders band. It was shown that plastic flow in the Chernov–Luders band leads to an increase in microhardness and the appearance of new {112}〈111〉 and {001}〈110〉 texture components.
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Research context
OpenAlex topics: Metal Alloys Wear and Properties · Microstructure and mechanical properties · Metallurgy and Material Forming
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References (18)
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