Simulation Study on Heating Process of Hot Rolled Steel Strip for X80M Pipeline Steel

Wang, Jian Gang; Wang, Hao; Bao, Yan; Wang, Min; Jing, Guo

doi:10.4028/www.scientific.net/msf.913.349

Cited by 3 publications

(3 citation statements)

References 10 publications

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“…The oxide film mainly includes Fe 2 O 3 , Fe 3 O 4 , and FeO (shown in Figure 7). Different oxides lead to weak bonding between oxides and are easily damaged, so the overall hardness is low [15]. Due to the formation of oxide film, the coke powder interacts with the oxide film.…”

Section: Sem Morphology and Elemental Content Of Powder Layermentioning

confidence: 99%

Effects of Coupling Action of Load and Temperature on the Lubricity of Coke Powder

2023

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By introducing the coke powder into the friction pair, the effects of load and temperature on the lubricity of coke powder at the frictional interface are studied. Before the test, the microcrystalline structures of coke powder at different temperatures are characterized by X-ray diffraction (XRD). After the test, the friction surfaces are observed by electron microscope and energy spectrum, the oxide compositions of friction surface are characterized by XRD, and the lubrication mechanism of coke powder is investigated. The results show that at RT (room temperature), as the load increases, the forming of the powder layer gradually deteriorates. When the load is 5 MPa, at a low temperature, the powder layer is thicker, and the coke powder exhibits better lubricity. In contrast, at a high temperature, affected by the temperature, the lubricity of coke powder declines, and the friction coefficient is higher.

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Section: Sem Morphology and Elemental Content Of Powder Layermentioning

confidence: 99%

Effects of Coupling Action of Load and Temperature on the Lubricity of Coke Powder

2023

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“…These steels have attractive combinations of strength and formability at relatively low alloy concentrations, and were first implemented by Dr Li Wang and colleagues at Baosteel in China [41]. Q&P components are employed in the Chevrolet Sail produced by General Motors and have even been developed in thicker hot-rolled sheet and provide enhanced wear resistance in cement mixer trucks [42]. Developments of such high strength steels are occurring around the world, and companies like ArcelorMittal, AK Steel, POSCO, Kobe Steel, US Steel and Nucor have all announced facility investments and new product families recently, with new capabilities to implement new annealing treatments.…”

Section: Automotive Sheet Steel Developmentmentioning

confidence: 99%

2017 Bessemer lecture: progress in steel product research to advance the industry and society

Speer

2018

Ironmaking & Steelmaking

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Steel development has been ongoing for generations and has enabled steel to play an important role in modern society. We might consider that metallurgists are often unsung heroes of this progress where product and process development have enabled technological progress, and steel developments are occurring faster than ever in some areas today. Last year's Bessemer lecture links the speaker's background with Bessemer Award history, and celebrates some of the heroes of steel product development that have impacted him, and have also impacted society and the development of the steel industry.

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“…The resultant press-hardened automotive components have a fully martensitic structure and exhibit a tensile strength of up to 1500 MPa. By virtue of these merits, the parts obtained via this technology are mainly used as the anti-collision components of automobiles, such as bumper beams, door reinforcements, A- and B-pillar reinforcements, and so on [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Anti-Corrosion Properties of Different Types of Press-Hardened Steels

Peng,

Zhao,

et al. 2024

Materials

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Hot stamping (or press hardening) is a new technology that is widely used in the production of advanced high-strength steel parts for automotive applications. Electrochemical measurements, including potentiodynamic polarization and electrochemical impedance spectroscopy (EIS), and accelerated corrosion tests (the neutral salt spray test and periodic immersion test) were conducted on press-hardened samples produced from uncoated (cold-rolled and cold strip production (CSP) hot-rolled) and Al–Si-coated press-hardened steels to elucidate their distinct anti-corrosion mechanisms. The cross-sectional micromorphology and element distribution of three types of press-hardened steels after a neutral salt spray test were observed using scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDAX). The corrosion resistance of Al–Si-coated press-hardened steel was found to be significantly diminished following the hot stamping process due to the presence of microcracks and elevated iron content in the coating subsequent to austenitizing heat treatment. On the other hand, the corrosion resistance of uncoated press-hardened sheets produced from cold-rolled and CSP hot-rolled press-hardened steel was found to be proximal due to their nearly identical composition and microstructure (fully martensite) after the hot stamping process. Considering the high efficiency and energy-saving properties of hot-rolled press-hardened steel, it holds the potential to replace cold-rolled and even aluminum–silicon-coated press-hardened steel in automobile manufacturing.

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Simulation Study on Heating Process of Hot Rolled Steel Strip for X80M Pipeline Steel

Cited by 3 publications

References 10 publications

Effects of Coupling Action of Load and Temperature on the Lubricity of Coke Powder

Effects of Coupling Action of Load and Temperature on the Lubricity of Coke Powder

2017 Bessemer lecture: progress in steel product research to advance the industry and society

Comparative Study of Anti-Corrosion Properties of Different Types of Press-Hardened Steels

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