Tensile and Spring-Back Behavior of DP600 Advanced High Strength Steel at Warm Temperatures

• Published in: Journal of iron and steel research, international Vol. 16; no. 6; pp. 41 - 46
• Main Authors: Ozturk, F, Toros, S, Kilic, S
• Format: Journal Article
• Language: English
• Published: Singapore Elsevier Ltd 01.11.2009; Springer Singapore
• Subjects: advanced high strength steel; Applied and Technical Physics; Assembly; Automotive components; DP600; Duplex stainless steels; Engineering; Formability; High strength; High strength steels; Iron and steel industry; Machines; Manufacturing; Materials Engineering; Materials Science; Metallic Materials; Physical Chemistry; Processes; spring-back; Steels; Structural steels; warm forming; 房间温度; 拉伸变形; 汽车行业; 温度范围; 高强度钢; DP600; advanced high strength steel; warm forming; spring-back
• ISSN: 1006-706X; 2210-3988
• DOI: 10.1016/S1006-706X(10)60025-8

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.