Effect of Tempering on Microstructure, Strength and Toughness Gradient in Quenched Low-Alloy Medium-Thickness Steel Plate. - Guan, Boyu; Bai, Shaobin; Zhang, Yongqing; Fu, Peimao; Lu, Haitao; Zhu, Hejia; Chen, Xingchi; Guo, Kaikai; Wang, Haonan; Chen, Yongan (Metals (2075-4701), 2026)