New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming

C T W Lahaije; R Rana; C Sunderkoetter; Iñaki Pérez; Maribel Arribas; Iñigo Aranguren; Daniele De Caro; Iaki Pérez; Iigo Aranguren

doi:10.1088/1757-899X/651/1/012092

New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming

C T W Lahaije, R Rana, C Sunderkoetter, Iñaki Pérez, Maribel Arribas, Iñigo Aranguren, Daniele De Caro, Iaki Pérez, Iigo Aranguren

Producción científica: Contribución a una revista › Artículo de la conferencia › revisión exhaustiva

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Resumen

Pure martensitic steels have after hot forming limited performance in terms of rest ductility which limits the application in crash relevant parts. New steel grades were designed in the EU project HOTFORM including the corresponding process routes. These steel grades have ferritic-martensitic dual phase (DP) and martensitic-bainitic complex phase (CP) microstructures after hot forming process. The laboratory tests show an improved formability after hot forming. The basic concepts of the new alloys are explained. Furthermore, for validation of upscaling purposes a semi-industrial test is carried out and the results are discussed. The main application is for vehicle safety. This is evaluated by comparing the crash performance of these hot formed grades with cold rolled DP1000 and CP1000 for crash cans in a drop tower test.

Idioma original	Inglés
Número de artículo	012092
Páginas (desde-hasta)	12092
Número de páginas	1
Publicación	IOP Conference Series: Materials Science and Engineering
Volumen	651
N.º	1
DOI	https://doi.org/10.1088/1757-899X/651/1/012092
Estado	Publicada - 26 nov 2019
Evento	38th International Deep Drawing Research Group Annual Conference, IDDRG 2019 - Enschede, Países Bajos Duración: 3 jun 2019 → 7 jun 2019

Palabras clave

Pure martensitic steels
Crash relevant parts
Vehicle safety
Hot forming process

Project and Funding Information

Funding Info
The research leading to these results was carried out in the framework of HOTFORM project with a financial grant of the Research Programme RFCS (Research Funds for Coal and Steel) under grant agreement (RFSR-CT-2015-00017).

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Este resultado contribuye a los siguientes Objetivos de Desarrollo Sostenible

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10.1088/1757-899X/651/1/012092

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Lahaije, C. T. W., Rana, R., Sunderkoetter, C., Pérez, I., Arribas, M., Aranguren, I., Caro, D. D., Pérez, I., & Aranguren, I. (2019). New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming. IOP Conference Series: Materials Science and Engineering, 651(1), 12092. Artículo 012092. https://doi.org/10.1088/1757-899X/651/1/012092

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abstract = "Pure martensitic steels have after hot forming limited performance in terms of rest ductility which limits the application in crash relevant parts. New steel grades were designed in the EU project HOTFORM including the corresponding process routes. These steel grades have ferritic-martensitic dual phase (DP) and martensitic-bainitic complex phase (CP) microstructures after hot forming process. The laboratory tests show an improved formability after hot forming. The basic concepts of the new alloys are explained. Furthermore, for validation of upscaling purposes a semi-industrial test is carried out and the results are discussed. The main application is for vehicle safety. This is evaluated by comparing the crash performance of these hot formed grades with cold rolled DP1000 and CP1000 for crash cans in a drop tower test.",

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AU - Lahaije, C T W

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AU - Arribas, Maribel

AU - Aranguren, Iñigo

AU - Caro, Daniele De

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AB - Pure martensitic steels have after hot forming limited performance in terms of rest ductility which limits the application in crash relevant parts. New steel grades were designed in the EU project HOTFORM including the corresponding process routes. These steel grades have ferritic-martensitic dual phase (DP) and martensitic-bainitic complex phase (CP) microstructures after hot forming process. The laboratory tests show an improved formability after hot forming. The basic concepts of the new alloys are explained. Furthermore, for validation of upscaling purposes a semi-industrial test is carried out and the results are discussed. The main application is for vehicle safety. This is evaluated by comparing the crash performance of these hot formed grades with cold rolled DP1000 and CP1000 for crash cans in a drop tower test.

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KW - Hot forming process

KW - Pure martensitic steels

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ER -

New Multiphase CP and DP 1000 MPa strength level grades for improved performance after hot forming

Resumen

Palabras clave

Project and Funding Information

ODS de las Naciones Unidas

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