Open access
Sep 2026
Hot Deformation Behavior and Hot Processing Map Analysis of Q420DR Low-Temperature Pressure Vessel Steel
Nominally isothermal compression tests were performed on Q420DR low-temperature pressure-vessel steel at 900–1150 °C and strain rates of 0.05–10 s−1, with a target true strain of 0.7. The effects of temperature and strain rate on flow behavior were investigated. Flow stress increased with decreasing temperature and inc...
Xian-Peng Zhao, Chang-Lin Liu, Yuan Gao et al.
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