Risse JH, Sippel F, Merklein M (2023)
Publication Language: English
Publication Type: Journal article
Subtype: other
Publication year: 2023
Publisher: IOP Publishing
Book Volume: 1284
Pages Range: 012003
Journal Issue: 1
URI: https://iopscience.iop.org/article/10.1088/1757-899X/1284/1/012003
DOI: 10.1088/1757-899X/1284/1/012003
Open Access Link: https://iopscience.iop.org/article/10.1088/1757-899X/1284/1/012003
As a lightweight construction strategy, hot stamped parts of ultra-high-strength steels with tailored properties are increasingly used for crash relevant components in car bodies, e.g., as B-pillars. With the process of tailored carburization, parts can be reinforced locally without increasing the sheet metal thickness. Thus, this process has the potential to be applied to lightweight components for no deformation zones, e.g., in the battery housings. Standardly, carburization is performed at 950 °C, with the highest strengths achieved at long times of up to 6 h, which prolongs the total process time. By raising the temperature, the carbon diffusion increases, which enables a reduced heat treatment time and, consequently, a shorter process time. Therefore, the objective of this study is to investigate the influence of elevated carburization temperatures on the mechanical properties of a carburized and hardened complex phase steel, CP-W® 800. A single carburization step at the enhanced temperatures leads to an embrittlement of the samples. Hence, an additional diffusion-annealing step is implemented to homogenize the carbon content, without enlarging the total heat treatment time. Depending on the time allocation of carburization and diffusion, the application of the diffusion annealing step results in higher strengths and ductility compared to only carburized samples.
APA:
Risse, J.H., Sippel, F., & Merklein, M. (2023). Carburization behavior at elevated temperatures and mechanical properties of a hot stamped complex phase steel. IOP Conference Series: Materials Science and Engineering, 1284(1), 012003. https://dx.doi.org/10.1088/1757-899X/1284/1/012003
MLA:
Risse, Jan Henning, Frank Sippel, and Marion Merklein. "Carburization behavior at elevated temperatures and mechanical properties of a hot stamped complex phase steel." IOP Conference Series: Materials Science and Engineering 1284.1 (2023): 012003.
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