Hardening Coefficient - an overview ScienceDirect Topics
The chemical composition of the carbon-manganese steel was 0.21% C, 1.32% Mn, 0.23% Si, and 0.2% Cu. The sample heating rate was 5°C/s for about 230 s, the stroke during upsetting was 16 mm, the die velocity was equal to 90 mm/s, and the test temperature was 1050°C. The circumferential strain in the analyzed SICO test was equal to 0.65.
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