Application of 980 MPa Grade Advanced High Strength Steel with High Formability

There are strong demands for vehicle weight reductions so as to improve fuel economy. At the same time, it is also necessary to ensure crash safety. One effective measure for accomplishing such both requirements conflicting each other is to apply advanced high strength steel (AHSS) of 780 MPa grade or higher to the vehicle body. On the other hand, higher strength steels generally tend to display lower elongation causing formability deterioration. Nissan Motor Corporation have jointly developed with steel manufacturers a new 980 MPa grade AHSS with high formability with the aim of substituting it for the currently used 590 MPa grade high-tensile steel. Several application technologies have been developed through the verifications such as formability, resistance spot weldability, crashworthiness, and delayed fracture. As the result of the development, 980 MPa AHSS can now be applied to body structural parts for which such application has previously been difficult because of their complicated shapes.

• Record URL:
  • https://doi.org/10.4271/2018-01-0625
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Hayashi, Shingo
  • Hirade, Takuya
  • Masuo, Hideki
  • Hanyu, Atsushi
  • Yoshida, Tsuyoshi
  • Ishiuchi , Kentarou
• Conference:
  • WCX World Congress Experience
  • Location: Detroit Michigan, United States
  • Date: 2018-4-10 to 2018-4-12
• Publication Date: 2018-4-3

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Forming; High strength steel; Vehicle bodies; Vehicle weight
• Identifier Terms: Nissan Motor Corporation
• Subject Areas: Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01725947
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2018-01-0625
• Files: TRIS, SAE
• Created Date: Dec 20 2019 4:24PM