Article
Materials Science, Multidisciplinary
Mingkun Jiang, Ying Han, Tong Zhang, Jiapeng Sun, Guoqing Zu, Hua Chen, Xu Ran
Summary: The precipitation behavior of 17Cr-0.86Si-1.2Cu-0.5Nb ferritic stainless steel during isothermal aging was studied, showing different precipitation of Cu-rich and Nb-rich phases at different temperatures. The hardness change with aging time at different temperatures was also investigated.
MATERIALS CHARACTERIZATION
(2021)
Article
Materials Science, Multidisciplinary
Hui-Hu Lu, Hong-Kui Guo, Wei Liang
Summary: In this study, a dissolution heat treatment was applied to restore the plasticity of embrittled superferritic stainless steel caused by the precipitation of sigma-phase, chi-phase, and Laves phase. The dissolution behavior of the brittle precipitation phases, as well as their effects on the mechanical properties, were investigated. It was observed that the plasticity of the tested steels was recovered after dissolution treatment, and the fracture mode changed from brittle to toughness.
MATERIALS CHARACTERIZATION
(2022)
Article
Materials Science, Multidisciplinary
Huimin Zhu, Shujiang Geng, Gang Chen, Fuhui Wang
Summary: The Ni-Mn3O4 and Ni-Mn3O4-CeO2 composite coatings fabricated on SUS 430 steel show improved high temperature oxidation resistance, with CeO2 effectively reducing the interdiffusion between the coating and the steel. An area specific resistance (ASR) of 25.1 m omega cm2 is achieved.
Article
Materials Science, Multidisciplinary
Hui-Hu Lu, Hong-Kui Guo, Wei Liang, Xing-Quan Shen
Summary: The study investigated the precipitation behavior, microstructure evolution, and mechanical properties of a cold-rolled 27.6Cr-3.7Mo-2Ni ferritic stainless steel during high temperature annealing treatment. It was found that different interphases precipitated with increasing annealing temperature, leading to changes in hardness, ultimate tensile strength, yield strength, and fracture pattern.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Review
Materials Science, Multidisciplinary
Yang Zhao, Hou-Long Liu, Liang-Liang Wei, Li-Qing Chen
Summary: Heat-resistant ferritic stainless steels are widely used in various industries due to their excellent performance. The research progress in terms of high-temperature strength, formability, high-temperature oxidation resistance, and creep performance has been summarized, and suggestions for alloy composition design and microstructure optimization have been provided.
Article
Materials Science, Multidisciplinary
Yu-Kun Hu, Wei-Min Mao
Summary: The research found that annealing treatment can effectively solve the problem of unstable plastic fluctuations in the as-cast state. The optimum annealing condition was determined to be annealing at 850 degrees C for 2 hours, which resulted in improved plasticity and better mechanical properties in the investment-cast 00Cr18Nb steel.
MATERIALS RESEARCH EXPRESS
(2021)
Article
Materials Science, Multidisciplinary
Yingbo Zhang, Dening Zou, Yunong Li, Yu Wang, Wei Zhang, Xiaoming Zhang
Summary: The study investigated the effect of Al content on the high-temperature oxidation behavior of 18Cr-Al-Si FHSS. Results showed that higher Al content reduced oxidation rate, improved oxidation resistance, and promoted the formation of denser and more continuous Al2O3 film in the early oxidation stages.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Yangyang Zhu, Likui Ning, Enze Liu, Yangtao Zhou, Zheng Tan, Jian Tong, Haiying Li, Zhi Zheng
Summary: Using transmission electron microscopy, we have discovered a new precipitation behavior of Laves phase in Fe-30Cr-2Mo super ferritic stainless steel. MC carbides first precipitate and adhere to M2SC carbosulphides with a specific orientation relationship. Subsequently, the interfaces between MC carbides and the ferrite matrix provide nucleation sites for Laves phases. The transformation from MC to Laves phases is an in-situ process based on the dissolution of MC carbide, supplying the niobium element for nucleation and growth of Laves phase. This work enriches the understanding of the precipitation mechanism of Laves phase and facilitates the design of high-performance ferritic stainless steels.
Article
Chemistry, Physical
Jana Poepperlova, Xiuru Fan, Bernd Kuhn, Ulrich Krupp
Summary: A novel thermomechanical process route was developed for fully ferritic stainless steels strengthened by Laves phase precipitates, allowing for controlled precipitation of particles and optimization of forging parameters. The up-scaling experiment from laboratory scale to industrial scale showed changes in precipitation behavior and a decrease in the precipitation strengthening effect compared to the laboratory scale.
Article
Materials Science, Coatings & Films
Yingbo Zhang, Dening Zou, Xiaoqiao Wang, Quansheng Wang, Ran Xu, Wei Zhang
Summary: The study investigated the influence of Si content on the high-temperature oxidation resistance of X10CrAlSi18 FHSS, revealing that a higher Si content could reduce its oxidation resistance.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Xing-Qiang Qian, Bin Sun, Dong-Shan Tang, Jian Chen, Lei Cheng, Zhi-Feng Li
Summary: The oxidation behavior of SUS430 ferritic stainless steel was studied under different humidities. It was found that increasing humidity resulted in a shorter induction period and earlier breakaway oxidation. The surface structure of the oxide scale was layered, with an outer layer of iron oxide and an inner layer mainly composed of Fe-Cr spinel phase. Cracks accelerated the diffusion of ions and electrons, as well as the erosion of the substrate.
STEEL RESEARCH INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Zhige Wang, Justin Dirrenberger, Pierre Lapouge, Sebastien Dubent
Summary: The study investigated the hardening of AISI 430 ferritic stainless steel sheets using continuous-wave laser beams under different conditions, including double laser treatment, linear energy density, and shielding gas effects on microstructure and hardness. Tensile behavior and oxidation effects during treatment were also studied, showing significant improvements in mechanical behaviors driven by the formation of martensite and chromium carbides despite poor carbon content and grain coarsening. These findings provide insights for locally modifying medium chrome ferritic stainless steel to meet industrial requirements.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Ling-Yun Du, Hui-Hu Lu, Ze-Zhou Xing, Jian-Shan Han, Shu-Hai Zhang, Jian-Chun Li
Summary: By adding 1.0 wt%Al element into the traditional super-ferritic stainless steel, the precipitation of brittle phases, recrystallization microstructure and mechanical properties can be tailored through solution annealing at temperatures of 950-1150 degrees C, demonstrating the potential of developing Al-modified ultra-super stainless steels.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Physical
Qingqing Zhao, Shujiang Geng, Yu Zhang, Gang Chen, Shenglong Zhu, Fuhui Wang
Summary: A high-entropy alloy coating of FeCoNiMnCu was prepared on SUS 430 steel for SOFC interconnects application. The coating showed excellent performance during thermal oxidation, forming a protective oxide layer and suppressing corrosion and outward diffusion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Bernd Kuhn, Michal Talik
Summary: HiperFer steels are a new type of heat-resistant, fully ferritic materials with increased mechanical strength and improved resistance to steam oxidation. Heat treatment was found to significantly improve the creep performance of the material, leading to a 100% increase in rupture time at 650 degrees C and a creep stress of 100 MPa.
