Tang Zhenglei,Wang Fuming,Yu Qiaomu,et al.Effect of Heat Treatment Process on Austenitic Grains of Steel SXQ500/550DZ35 for Hydropower Stations[J].Special Steel,2023,44(03):104-108.
Tang Zhenglei,Wang Fuming,Yu Qiaomu,et al.Effect of Heat Treatment Process on Austenitic Grains of Steel SXQ500/550DZ35 for Hydropower Stations[J].Special Steel,2023,44(03):104-108. DOI: 10.20057/j.1003-8620.2022-00205.
Through a series of heating temperature, holding time tests and detection of precipitated phases, the austenite grain growth of SXQ500/550DZ35 steel for hydropower station is studied. It is determinted that recommended temperature for complete austenitization is 900-950 ℃, and the recommended holding time is 20-60 min. The purpose is to ensure its low temperature impact toughness by refining grain steel, and to provide relevant basis for the improvement of later heat treatment process.