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Title: Formability Characterization of a New Generation High Strength Steels

Abstract

Advanced high strength steels (AHSS) are being progressively explored by the automotive industry all around the world for cost-effective solutions to accomplish vehicle lightweighting, improve fuel economy, and consequently reduce greenhouse emissions. Because of their inherent high strength, attractive crash energy management properties, and good formability, the effective use of AHSS such as Duel Phase and TRIP (Transformation Induced Plasticity) steels, will significantly contribute to vehicle lightweighting and fuel economy. To further the application of these steels in automotive body and structural parts, a good knowledge and experience base must be developed regarding the press formability of these materials. This project provides data on relevant intrinsic mechanical behavior, splitting limits, and springback behavior of several lots of mild steel, conventional high strength steel (HSS), advanced high strength steel (AHSS) and ultra-high strength steel (UHSS), supplied by the member companies of the Automotive Applications Committee (AAC) of the American Iron and Steel Institute (AISI). Two lots of TRIP600, which were supplied by ThyssenKrupp Stahl, were also included in the study. Since sheet metal forming encompasses a very diverse range of forming processes and deformation modes, a number of simulative tests were used to characterize the forming behavior of these steel grades.more » In general, it was found that formability, as determined by the different tests, decreased with increased tensile strength. Consistant with previous findings, the formability of TRIP600 was found to be exceptionally good for its tensile strength.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Ispat Inland Inc.
Sponsoring Org.:
USDOE Office of Industrial Technology Program (EE-2F)
OSTI Identifier:
1001171
Report Number(s):
TRP0012
TRN: US201102%%410
DOE Contract Number:  
FC36-97ID13554
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AUTOMOTIVE INDUSTRY; DEFORMATION; ENERGY MANAGEMENT; FUEL CONSUMPTION; GREENHOUSE GASES; IRON; PLASTICITY; STEELS; TENSILE PROPERTIES; Formability; High Strength Steels

Citation Formats

Sadagopan, Sriram, Urban, Dennis, Wong, Chris, Huang, Mai, and Yan, Benda. Formability Characterization of a New Generation High Strength Steels. United States: N. p., 2003. Web. doi:10.2172/1001171.
Sadagopan, Sriram, Urban, Dennis, Wong, Chris, Huang, Mai, & Yan, Benda. Formability Characterization of a New Generation High Strength Steels. United States. doi:10.2172/1001171.
Sadagopan, Sriram, Urban, Dennis, Wong, Chris, Huang, Mai, and Yan, Benda. Fri . "Formability Characterization of a New Generation High Strength Steels". United States. doi:10.2172/1001171. https://www.osti.gov/servlets/purl/1001171.
@article{osti_1001171,
title = {Formability Characterization of a New Generation High Strength Steels},
author = {Sadagopan, Sriram and Urban, Dennis and Wong, Chris and Huang, Mai and Yan, Benda},
abstractNote = {Advanced high strength steels (AHSS) are being progressively explored by the automotive industry all around the world for cost-effective solutions to accomplish vehicle lightweighting, improve fuel economy, and consequently reduce greenhouse emissions. Because of their inherent high strength, attractive crash energy management properties, and good formability, the effective use of AHSS such as Duel Phase and TRIP (Transformation Induced Plasticity) steels, will significantly contribute to vehicle lightweighting and fuel economy. To further the application of these steels in automotive body and structural parts, a good knowledge and experience base must be developed regarding the press formability of these materials. This project provides data on relevant intrinsic mechanical behavior, splitting limits, and springback behavior of several lots of mild steel, conventional high strength steel (HSS), advanced high strength steel (AHSS) and ultra-high strength steel (UHSS), supplied by the member companies of the Automotive Applications Committee (AAC) of the American Iron and Steel Institute (AISI). Two lots of TRIP600, which were supplied by ThyssenKrupp Stahl, were also included in the study. Since sheet metal forming encompasses a very diverse range of forming processes and deformation modes, a number of simulative tests were used to characterize the forming behavior of these steel grades. In general, it was found that formability, as determined by the different tests, decreased with increased tensile strength. Consistant with previous findings, the formability of TRIP600 was found to be exceptionally good for its tensile strength.},
doi = {10.2172/1001171},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {5}
}