Results 31 to 40 of about 287 (172)
Journal of Materials Research and Technology, 2023 Al–Si coated 22MnB5 steel is a lightweight material that helps significantly reduce vehicle weight and fuel consumption. In this article, the effect of different oscillation frequencies on the fraction of α-ferrite, the cross-sectional shape ...
Wei Xu, Wu Tao, Haiwen Luo, Shanglu Yang
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Effect of Necking Behavior and of Gap Size on the Cooling Rate in Hot Stamping [PDF]
Materials Research, 2016 In this study, a tailored die quenching experimental method using low closing pressures and an aluminum flat die was developed in order to evaluate the effects of the gap size on the cooling rate in the hot stamping process of a 22MnB5 steel grade ...
André Olah Neto +3 more
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Materials & Design, 2019 The present study investigated the feasibility of applying a one-step quenching and partitioning treatment into simulative hot stamping of a tailor welded blank.
H. Kong, Q. Chao, B. Rolfe, H. Beladi
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Hydrogen absorption of ultra-high strength aluminum-silicon coated 22MnB5 steels
Journal of Materials Research and Technology, 2023 The hot forming process allows to produce safety-relevant structural components in the automotive industry with strengths of 1500 MPa and higher. Generally, high strengths make material sensitive to hydrogen embrittlement.
Christoph Ostwald +3 more
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Flow behaviors of 22MnB5 steel at a high temperature
Materials Research Express, 2019 Flow behaviors of 22MnB5 ultra-high strength steel (UHSS) at different temperatures and strain rates were investigated using uniaxial tension tests. The variables of the Arrhenius model, which involved n, Q, α, and lnA, was calculated using a fifth order polynomial fitting method.
Wei-Jie Fei +6 more
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Soft Sensors for Property-Controlled Multi-Stage Press Hardening of 22MnB5
Automotive Innovation, 2023 AbstractIn multi-stage press hardening, the product properties are determined by the thermo-mechanical history during the sequence of heat treatment and forming steps. To measure these properties and finally to control them by feedback, two soft sensors are developed in this work. The press hardening of 22MnB5 sheet material in a progressive die, where
Juri Martschin +4 more
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Metals, 2023 To weaken the harm of Al–Si coating and increase the strength of welded joints, variable thicknesses of Ni foil (Ni, an austenitic formation element) were added to the lap laser welding Al–Si-coated 22MnB5 hot stamping steel/galvanized steel joints.
Youping Zhang +3 more
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Hard cutting of tailored hardened 22MnB5
, 2010 In the present work, the feasibility of creating low strength zones in flanges of tailored hardened 22MnB5 is evaluated by means of the combining high and low thermal conductivity tool materials. Finite Element (FE) simulations are performed in order to determine the temperature distribution in sheets when different tool materials ...
Laumann, Till +5 more
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Journal of Materials Research and TechnologyTo accurately characterize the dynamic deformation mechanical properties of hot forming steels 6Mn6 and 22MnB5 under collision conditions, quasi-static tensile tests (0.001s−1) and Hopkinson compression bar tests (∼2000s−1, ∼3000s−1, ∼4000s−1) were ...
Song Gao +5 more
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Cailiao gongchengQP1180 quenching-partitioning steel and 22MnB5 hot press forming（HPF） steel are two main lightweight materials for automobiles. QP1180 is a 1.2 GPa cold forming steel， while 22MnB5 is a 1.5 GPa HPF steel， which needs to undergo HPF to obtain high ...
WANG Jinfeng +8 more
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