Results 31 to 40 of about 698 (204)
Journal of Chemistry, Volume 2021, Issue 1, 2021., 2021 Due to the complex composition and high proportion of alloys in traditional ultrahigh strength steel, the dilemma caused by ultrahigh strength and low toughness in casting and forging processes requiring subsequent heat treatment can be mitigated with an efficient and economical rolling process.
Yongli Chen +5 more
wiley +1 more source
Optimization of GMAW Process Parameters in Ultra-High-Strength Steel Based on Prediction
Metals, 2023 Ultra-high-strength steel (UHSS) is a complex and sophisticated material that allows the development of products with reduced weight but increased strength and can assist, for example, in the automotive industry, saving fuel in vehicles and decreasing ...
Alnecino Netto +2 more
doaj +1 more source
Study of Tailored Hot Stamping Process on Advanced High-Strength Steels
Journal of Manufacturing and Materials Processing, 2022 Ultra-high-strength steels (UHSS) combined with tailor-stamping technologies are increasingly being adopted in automotive body production due to crashworthiness improvements and part weight reduction, which meet safety and energy saving demands. Recently,
Maria Emanuela Palmieri +2 more
doaj +1 more source
Improved bendability characterization of UHSS sheets
IOP Conference Series: Materials Science and Engineering, 2019 Abstract Bendability characterization of UHSS sheets is often limited by punch-sheet-liftoff during standardized bending tests. This phenomenon is characterized by a smaller radius on the bent sheet than the desired tool radius and might lead to a misinterpretation of the admissible bending radii from such tests.
L. Wagner +3 more
openaire +1 more source
Multiobjective Optimization for Forming Process Parameters of Ultrahigh Strength Steel BR1500HS
Advances in Materials Science and Engineering, Volume 2021, Issue 1, 2021., 2021 This paper focuses on obtaining the optimum process parameters and improving the mechanical properties of ultrahigh strength steel BR1500S. Many experimental data are obtained, and then response surface methodology (RSM) is used to obtain the optimum parameters. Combining the experimental data with RSM, some conclusions are summarized. When the cooling
Xin Shang +3 more
wiley +1 more source
Hydrogen Embrittlement of Medium Mn Steels
Metals, 2021 Recent research efforts to develop advanced–/ultrahigh–strength medium-Mn steels have led to the development of a variety of alloying concepts, thermo-mechanical processing routes, and microstructural variants for these steel grades.
Lawrence Cho +3 more
doaj +1 more source
Materials & Design, 2021 Zinc-coated ultra-high-strength steel (UHSS) sheets are highly susceptible to liquid metal embrittlement (LME) during resistance spot welding. However, systematic understanding on LME cracks in the pullout fracture of UHSS welds is still lacking.
Yunwu Ma +7 more
doaj +1 more source
Mechanical Properties of Laser Heat Treated 6 mm Thick UHSS-Steel [PDF]
AIP Conference Proceedings, 2011 In this work abrasion resistant (AR) steel with a sheet thickness of 6 mm was heat treated by a 4 kW Nd:YAG and a 4 kW Yb:Yag-laser, followed by self-quenching. In the delivered condition, test material blank (B27S) is water quenched from 920 deg. C. In this condition, fully martensitic microstructure provides excellent hardness of over 500 HB.
Järvenpää, Antti +5 more
openaire +2 more sources
The Study of Roll-forming Technology for UHSS Hydroformed Parts
Transactions of the Korean Society of Automotive Engineers, 2015 In the automotive industry, it is required to reduce weight of the car and improve fuel efficiency. Competitive pricing is also a very important issue. That`s why application of welded steel tube is increasing in order to produce a vehicle with a competitive price. Also, hydroforming technology is asking more and more for thinner tubing to realize to a
Sungpill Park, Yongjai Kwon
openaire +2 more sources
, 2019 (multivariable linear regression; outcome variable: cumulative UHSs costs; R2 = 0.526).
Maria Grazia Proietti (6824282) +11 more
core +1 more source