Charpy Impact Fracture Energy and Ductile-Brittle Transition Temperature of Dual-Phase 590 Steel Department of Mechanical Engineering University of South Carolina

Format:

Conference/Event

Author/Creator:

Chao, Y. J., author.

Conference Name:

SAE 2005 World Congress & Exhibition (2005-04-11 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2005

Summary:

Advanced High strength steels (AHSS) have been introduced and gradually adopted in vehicle structures as lightweight materials in the past years. Engineering performance of AHSS in many areas have shown that they are superior to the conventional steels such as mild steel, IF (interstitial-free) steel or even HSLA (high strength, low alloy) steel. In this paper, we present the results from Charpy V-Notch impact tests on Dual Phase 590 (DP590) steel, which belongs to the family of AHSS. Tests were conducted at temperatures ranging from -120 °C (-184 °F) to 90 °C (194 °F). Specimens oriented in both L-T and T-L directions were tested. Due to its reduced thickness relative to the ASTM testing standards, specimens from a medium low carbon steel AISI-1018, having both standard and reduced thicknesses, were tested as well to justify the correction method for the DP590 data. It is shown that the ductile-brittle transition temperature (DBTT) based on 20.4 J (15 ft-lb) absorbed energy is about -95 °C (-139 °F) for DP590 which is far below the 5 °C (41 °F) of the AISI-1018 steel

Notes:

Vendor supplied data

Publisher Number:

2005-01-1413

Access Restriction:

Restricted for use by site license