Article
Materials Science, Multidisciplinary
Adnane El Jersifi, Khalil Aouadi, Meriem Ben Ali, Abdelouahed Chbihi, Nawal Semlal, Hassan Bouaouine, Sanae Naamane
Summary: This study investigates the effects of heat treatments on the properties and resistance to erosion and corrosion of a ferritic high-chromium cast iron. Four samples were subjected to different temperatures (800, 900, 1000, and 1100 degrees C) for 2 hours and then air-cooled. The samples were analyzed for hardness, microstructure, erosion resistance, and corrosion resistance. The results reveal that heat treatments influence these properties through carbide coalescence, carbide dissolution, and ferrite recrystallization mechanisms.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Nanoscience & Nanotechnology
Junkui Li, Zhinan Yang, Ma Hua, Chen Chen, Fucheng Zhang
Summary: Nanoscale lath martensite with high density dislocations and fine V carbides embedded in heterogeneous lamellar structure was achieved in Medium-C (0.46%) martensitic steel through a multistage rolling process followed by oil quenching and low-temperature tempering. The tensile properties demonstrated a yield strength of 1809 MPa, ultimate tensile strength of 2590 MPa, and uniform elongation of 12.6%. This excellent combination of strength and ductility is comparable to, and even superior than, other high-strength high-ductility metallic materials. Additionally, the underlying mechanisms were briefly discussed.
SCRIPTA MATERIALIA
(2023)
Article
Nanoscience & Nanotechnology
Minglu Chen, Bin Jiang, Ran Ding, Yihuan Liu, Liming Yu, Zejun Wang, Chenxi Liu, Yongchang Liu
Summary: In this study, austenitic steel and high-Cr ferritic steel were joined using transient liquid phase (TLP) bonding technique with a Fe-Si-B amorphous interlayer. The effects of bonding time on microstructure evolution and tensile behaviors were investigated. The results showed that the precipitated particles and the formation of martensitic layer were influenced by the bonding time. The deformation behavior and fracture location were also affected by the bonding time, indicating the importance of optimizing the bonding parameters in TLP bonding process.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Materials Science, Multidisciplinary
K. Chen, J. Wang, L. Zhang, H. Wang, X. An, Y. Li, J. Zhang, Z. Shen, X. Zeng
Summary: The corrosion behaviors of two iron-based steels in 600 degrees C deaerated supercritical water were investigated. It was found that grinding significantly enhanced the oxidation resistance of austenitic stainless steel, while the oxidation rate of ferritic steel remained unchanged.
Article
Materials Science, Multidisciplinary
Wenle Liu, Fujian Guo, Shenglong Liang, Xuelin Wang, Chengjia Shang
Summary: This study investigated the evolution behavior of M7C3 carbides in a 90Cr18MoV martensite stainless steel during high temperature diffusion annealing treatments near the solidus temperature. The results showed that only M7C3 carbides dissolved below the solidus temperature, while a certain amount of liquid phase appeared around the grain boundaries and two different types of precipitates formed within the grains when the temperature was above the solidus.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Jana Poepperlova, Daniela Wipp, Bernd Kuhn, Wolfgang Bleck
Summary: This study investigates the precipitation behavior of the Laves phase in Fe-17Cr-0.6Nb-2.4W HiperFer alloys after thermomechanical treatment, comparing the effects of adding 55 ppm boron. The addition of boron promotes the formation of Laves phase at grain boundaries and suppresses particle growth and coarsening. Creep and thermomechanical fatigue testing confirm the increased creep ductility in the boron-alloyed variant.
Article
Materials Science, Multidisciplinary
V. D. Sitdikov, R. K. Islamgaliev, G. F. Sitdikova, A. Ganeev, M. A. Nikitina
Summary: This study observed a texture transition in ferritic/martensitic steel during additional heat treatment, possibly due to the activation of twinning processes and an increase in the number of boundaries with coincidence site lattice relationships.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2022)
Article
Chemistry, Physical
Mingyu He, Hongjun Kang, Shouyuan Lin, Yanyan Liu, Peng Zhang, Wei Qin, Xiaohong Wu
Summary: In this study, FeCrNiMnAl coating with high binding force and dimensional stability was prepared on F/M by laser cladding, and its high-temperature oxidation evolution behavior was first reported. The results showed that the FeCrNiMnAl coating greatly improved the oxidation resistance of F/M, attributed to the formation of Al2O3 and Mn3O4 gradient films in the coating.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Hao Wang, Xing Gong, Jun Xiao, Linjiang Chai, Zhiyang Yu, Haitao Chen, Ke Zhao, Jun Zhou, Guiliang Liu, Yong Chen, Shaoyu Qiu
Summary: This study investigates the liquid metal embrittlement (LME) susceptibility of 12Cr ferritic/martensitic (F/M) thin-walled tubes in liquid lead-bismuth eutectic (LBE) under different conditions, including temperature, oxygen concentration, and strain rate. The results reveal that LME occurs in almost all testing conditions, with oxygen concentration and strain rate being the most influential factors.
Article
Materials Science, Multidisciplinary
Tao Wang, Xueyang Fang, Huiyun Zhang, Wenjie Lv, Jinyao Ma, Wei Liang, Liuwei Zheng
Summary: This paper revisited the hydrogen distribution and content in AISI430 ferritic stainless steel using TOF-SIMS and TDS, finding that hydrogen can change the stress level state at the crack tip, increase crack growth rate, and promote a specific fracture mechanism.
Article
Materials Science, Coatings & Films
Qian Yuan, Linjiang Chai, Jing Shen, Hao Wang, Haotian Guan, Ning Guo, Yuqiong Li
Summary: The study demonstrates that laser surface treatment can significantly improve the wear resistance of ferritic/martensitic (F/M) sheet, while also inducing significant changes in the material's microstructure.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Hao He, Shuhai Huang, Hui Wang, Xuefei Huang
Summary: Two novel multi-step phase transformation processes (B-M and M-B-M) were developed in the study to improve the ductility and toughness of a modified 9Cr-2WVTa steel by employing the finer B/M multiphase microstructure. The M-B-M process significantly increased the total elongation/impact toughness of the steel while reducing the ultimate tensile strength/yield strength, attributed to lower dislocation density and more subgrains within the bainite laths.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yiheng Chen, Yunxiang Long, Hongtai Luo, Ziyang Xie, Wenbin Lin, Liping Guo, Hui Wang, Xuguang An, Qingquan Kong, WeiPing Zhang, Yunxia Gao, Yuanyun Wen
Summary: By controlling the silicon content, the irradiation behavior of steel can be regulated, inhibiting the growth of certain precipitates and promoting the nucleation of others, which affects the microstructure and hardness of the alloy.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Chunliang Mao, Chenxi Liu, Liming Yu, Yongchang Liu
Summary: By adding trace amounts of Ta and Zr elements, the creep properties of reduced activation ferritic/martensitic (RAFM) steels at elevated temperatures can be improved. This is attributed to the refinement of carbide particles and the increase in MX particle quantity, resulting in enhanced strength and reduced creep rate.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Rui Wang, Fenghao Li, Zhonghao Wu, Yan Kang, Jing Fan, Zhiqiang Yu, Zhijie Yan, Shen Du, Juergen Eckert
Summary: The precipitation and transformation of carbides during tempering of high-temperature solution-treated 7Cr14 martensitic stainless steel were investigated. M3C and M23C6 carbides precipitated during tempering, with activation energies of 120 ± 7 and 272 ± 13 kJ mol(-1), respectively. The precipitation of M3C and M23C6 carbides was primarily controlled by C and Cr atomic diffusion, respectively.
STEEL RESEARCH INTERNATIONAL
(2023)