Results 1 to 10 of about 877,846 (152)

Effect of rapid tempering at high temperature on microstructure, mechanical properties and stability of retained austenite of medium carbon ultrafine bainitic steel

Journal of Materials Research and Technology
Rapid tempering at high temperature is beneficial to release residual stress. However, the evolution of microstructure and mechanical properties of ultrafine bainitic steel after rapid tempering at high temperature is still unclear. In this research, the
Jianjun Wang, Hongguang Li, Qingchao Wang, Zhuanqin Liang, Shangjun Gao, Libin Sun, Xinliang Gao, Zhinan Yang, Yanguo Li, Fucheng Zhang   +9 more
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Ultrafine bainitic steel produced through ausforming-quenching process

Journal of Materials Research and Technology, 2020
The coupling effects of ausforming and quenching process on isothermal bainite transformation behaviors, microstructures and mechanical properties of ultrafine bainitic steel have been analyzed.
H. Guo, Y.P. Fan, X.Y. Feng, Q. Li
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Introducing ultrafine ferrite in low-temperature bainitic steel through a novel process for simultaneously improving strength and toughness

Journal of Materials Research and Technology, 2021
A novel process is proposed to introduce ultrafine ferrite in a medium-carbon high-silicon steel that possesses low-temperature bainite. This process is based on the intercritical annealing of the cold-rolled tempered troostite and subsequent ...
Ting Zhao, Xin Jia, Chen Chen, Fucheng Zhang, Tiansheng Wang   +4 more
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Introducing nano-VC precipitates makes ultrafine bainitic steel a better combination of strength, ductility, and toughness

Materials Research Letters
Simultaneously enhancing the strength, plasticity, and toughness of metal materials has been a prominent research objective. In this study, the precipitation of nano-scale vanadium carbide particles at a lower tempering temperature is controlled to ...
Zhuanqin Liang, Hongguang Li, Cuicui Chen, Huajun Fu, Xiaoyong Feng, Xinliang Gao, Zhinan Yang, Fucheng Zhang   +7 more
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Microstructural evolution and mechanical performance of friction stir spot welded ultrafine carbide-free bainitic steel: Role of dwell time

Journal of Materials Research and Technology
This study focuses on unraveling the role of dwell time on microstructural evolution, mechanical performance, and failure characteristics of friction stir spot welded ultrafine carbide-free bainitic steel.
Maryam Kabirmohammadi, Sasan Yazdani, Tohid Saeid, Majid Pouranvari   +3 more
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Development of advanced cementite-free bainitic steel using Ni, Al and Cu additions – Design concept and phase transformations study

Journal of Materials Research and Technology, 2023
A novel concept, consisting of the stabilization of retained austenite with Ni, Al, and Cu additions instead of using Si as the major alloying element to prevent carbide formation, is proposed to design nanocrystalline, cementite-free bainitic steels. In
Aleksandra Królicka, Francisca Garcia Caballero, José Antonio Jimenez, Władysław Zalecki, Roman Kuziak   +4 more
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Effect of prior-austenite grain size on the microstructure and mechanical properties of ultrafine-grained dual-phase layer-structured steel produced by hot rolling of intercritical annealed bainite

Journal of Materials Research and Technology, 2023
In this study, ultrafine-grained (UFG) ferrite/martensite (F/M) layer-structured (LS) steels were fabricated by hot rolling of intercritical annealed bainite steels with a rolling reduction of 75% to ease the strength-toughness trade-off dilemma, and the
Junjie Sun, Bin Xu, Hao Wang, Shengwu Guo, Zehui Yan, Jinhua Zhang, Yongning Liu   +6 more
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Stability of retained austenite and work hardening behavior in ultra-fine medium carbon bainitic steel

Journal of Materials Research and Technology, 2023
The effect of retained austenite stability on plastic deformation was investigated by stepwise tensile test of medium carbon steel material at two different bainite isothermal temperatures below or above the martensite start (Ms) point.
Tingting He, Lu Wang, Feng Hu, Wen Zhou, Zhicheng Zhang, Kaiming Wu   +5 more
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High-strength surface layers with ultrafine grain steels generated by the intermediate billet controlled cooling method

Journal of Materials Research and Technology, 2022
Surface layers with ultrafine grain (SUF) steels possess excellent crack arrestability. But the strength of the current SUF steels is low and the grain ultrarefinement mechanism is still in doubt.
Xinjun Shen, Dezhi Li, Guodong Wang
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Improvement of tensile properties by controlling the microstructure and crystallographic data in commercial pearlitic carbon-silicon steel via quenching and partitioning (Q&P) process

Journal of Materials Research and Technology, 2023
In the current research, a complex microstructure and crystallographic data were developed through quenching and partitioning (Q&P) process to improve tensile properties of commercial pearlitic carbon-silicon steel.
M.A. Mohtadi-Bonab, Edwan A. Ariza, Rodrigo C.P. Loureiro, Dany Centeno, Felipe M. Carvalho, Julian A. Avila, Mohammad Masoumi   +6 more
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