Effect of deformation temperature on microstructure and corrosion properties of hot-compressed 347H stainless steel

被引：0
|
作者：
Wang, Qiushuang [1 ]
Li, Ruidong [2 ]
Li, Junchen [2 ,3 ]
机构：
[1] Soochow Univ, Sch Iron & Steel, Suzhou 215021, Jiangsu, Peoples R China
[2] Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China
[3] Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2025年 / 171卷
关键词：
Hot compression; Microstructure; Corrosion properties; 347H stainless steel; Dynamic recrystallization; BOUNDARY-CHARACTER-DISTRIBUTION; INTERGRANULAR CORROSION; GRAIN-BOUNDARY; DYNAMIC RECRYSTALLIZATION; BEHAVIOR; RESISTANCE; EVOLUTION; PRECIPITATION; SIZE;
D O I：
10.1016/j.elecom.2024.107861
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The corrosion resistance of 347H stainless steel after hot rolling or hot extrusion has always been a focus of attention in the thermoelectric field. This work uses electrochemical evaluation methods to study the corrosion behavior of 347H stainless steel after hot compression under different temperatures. The effects of dynamic recrystallization (DRX), grain size, and grain boundary (GB) on the corrosion behavior of the material were analyzed by microstructure detection. It is found that 347H stainless steel undergoes a valley stage of corrosion properties when deformed near 1050 degrees C with a constant strain rate. The changes of grain boundary density and E3 boundaries caused by deformation at different temperatures are the fundamental reasons for the fluctuation of corrosion properties. These results indicate that deformation temperature is an important factor controlling the corrosion resistance of hot- compressed 347H stainless steel. This study has important reference value for the development of hot deformation technology and the improvement of corrosion resistance of 347H stainless steel.
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页数：9
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