TY - JOUR
T1 - Microstructure and Oxidation Behavior of C-HRA-5 Austenitic Heat-Resistant Steel in Air at the Temperature Range of 650–750 °C
AU - Jia, Jianwen
AU - Li, Hui
AU - Du, Huayun
AU - Ren, Juanna
AU - Liang, Huimin
AU - Hou, Lifeng
AU - Wei, Huan
AU - Hou, Hua
AU - Liu, Xiaoda
AU - Wei, Yinghui
AU - Guo, Zhanhu
N1 - Funding information: This work was supported by the Key Scientific Research Project in Shanxi Province [grant nos. 20181101014, 201805D121003, and 20191102006], the Key project of the National Natural Science Foundation of China [U21A2045], the Special funds for the central government of Shanxi Province to guide local scientific and Technological Development [YDZJSX2021B004], Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Lvliang city to introduce high-level scientific and technological talents key research and development projects [Rc2020-1070], and Shanxi Postgraduate Innovation Project (2022Y170). Dr. Z.W. gratefully acknowledges financial support from Oakland University.
PY - 2024/3/1
Y1 - 2024/3/1
N2 - This study investigates the oxidation behavior and microstructure characterization of C-HRA-5 (i.e., a new austenitic heat-resistant steel) in the air at temperatures ranging from 650 to 750 °C over a 1000-hour duration. The oxidation behavior and mechanism are analyzed using gravimetric evaluation, thermodynamic analysis, microscopic morphology, and microstructure characterization. The results indicate that the oxidation behavior follows a parabolic law at each temperature. With increasing temperature, the oxide film gradually grows and transforms from small lump particles to strips and needles, eventually covering the entire substrate surface over time. Moreover, long-term oxidation exposure promotes the formation of various phases, including M23C6, σ, MX, Z, nanosized Cu-rich, and Laves phases, within the metallic substrate. Considering potential applications in new-generation power plants, this study provides a solid foundation to disclose the possible oxidation of C-HRA-5 austenitic heat-resistant steel at high temperatures.
AB - This study investigates the oxidation behavior and microstructure characterization of C-HRA-5 (i.e., a new austenitic heat-resistant steel) in the air at temperatures ranging from 650 to 750 °C over a 1000-hour duration. The oxidation behavior and mechanism are analyzed using gravimetric evaluation, thermodynamic analysis, microscopic morphology, and microstructure characterization. The results indicate that the oxidation behavior follows a parabolic law at each temperature. With increasing temperature, the oxide film gradually grows and transforms from small lump particles to strips and needles, eventually covering the entire substrate surface over time. Moreover, long-term oxidation exposure promotes the formation of various phases, including M23C6, σ, MX, Z, nanosized Cu-rich, and Laves phases, within the metallic substrate. Considering potential applications in new-generation power plants, this study provides a solid foundation to disclose the possible oxidation of C-HRA-5 austenitic heat-resistant steel at high temperatures.
KW - austenitic heat-resistant steels
KW - high-temperature oxidations
KW - microstructures
KW - oxidation behaviors
UR - https://www.scopus.com/pages/publications/85183354129
U2 - 10.1002/adem.202301622
DO - 10.1002/adem.202301622
M3 - Article
AN - SCOPUS:85183354129
SN - 1438-1656
VL - 26
SP - 1
EP - 10
JO - Advanced Engineering Materials
JF - Advanced Engineering Materials
IS - 6
M1 - 2301622
ER -