Tensile and spring-back behavior of DP600 advanced high strength steel at warm temperatures

  • F OzturkEmail author
  • S Toros
  • S Kilic


In recent years, the use of advanced high strength steels in automotive industry has been increased remarkably. Among advanced high strength steels, dual phase (DP) steels have gained a great attention owing to a combination of high strength and good formability. However, high strength usually increases the spring-back behavior of the material, which creates problems for the parts during the assembly. Thus, the uniaxial tensile deformation and spring-back behaviors of DP600 advanced high strength steel were investigated in rolling (0°), diagonal (45°), and transverse (90°) directions in the temperature range from room temperature (RT) to 300 °C. All tests were performed at a deformation speed of 25 mm/min. A V-shaped die (60°) was used for the spring-back measurements. The results indicated that the formability and spring-back of the material were decreased with increasing the temperatures. The material showed complex behaviors in different directions and at different temperatures.

Key words

advanced high strength steel DP600 warm forming spring-back 


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Copyright information

© China Iron and Steel Research Institute Group 2009

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringNigde UniversityNigdeTurkey

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