Shaping and Forming of Advanced High Strength Steels

Abstract

Advanced high-strength steels (AHSS) are of great interest to the transportation industry to help meet increasingly restrictive fuel economy and emissions regulations. Since the mid-1990s, the properties of steels used in automotive structures have changed dramatically, and in some cases the tensile strength levels have increased more than fivefold: current press-hardened grades achieve strengths of 1500 MPa or more relative to mild steel sheets with strengths of less than 300 MPa. [...]the use of alloying to reduce the density of steels is discussed in "An Overview of the Effects of Alloying Elements on the Properties of Lightweight Fe-(15-35) Mn-(5-12) Al-(0.3-1.2) C Steel", by Jia Xing et al. The following articles are published under the topic "Shaping & Forming of Advanced High Strength Steels" in the June 2018 issue (vol. 70, no. 6) of JOM, and can be accessed via the JOM page page at http://link.springer.com/journal/11837/ 70/6/page/1. * "Strain Rate Effect on Tensile Flow Behavior and Anisotropy of a Medium Manganese TRIP Steel," Rakan Alturk, Louis G. Hector, Jr., C. Matthew Enloe, Fadi Abu-Farha, and Tyson W. Brown. * "Split-Ring Springback Simulations with Nonassociated Flow Rule and Evolutionary ElasticPlasticity Models," Kijung Lee, Yumi Choi, Hongjin Choi, Jeong-Yeon Lee, and MyoungGyu Lee. * "Small-Scale System for Evaluation of StretchFlangeability with Excellent Reliability," Jae Ik Yoon, Jaimyun Jung, Hak Hyeon Lee, and Hyoung Seop Kim. * "Effects of Testing Method on Stretch-Flangeability of Dual-Phase 980/1180 Steel Grades," Mykal Madrid, Chester J. Van Tyne, Sriram Sadagopan, Erik J. Pavlina, Jun Hu, and Kester D. Clarke. * "Probing the Evolution of Retained Austenite in TRIP Steel During Strain-Induced Transformation: a Multi-Technique Investigation," G.N. Haidemenopoulos, M. Constantinou, H. Kamoutsi, D. Krizan, I. Bellas, L. Koutsokeras, and G. Constantinides. * "An Overview of the Effects of Alloying Elements on the Properties of Lightweight Fe-(15-35) Mn(5-12) Al-(0.3-1.2) C Steel," Jia Xing, Yinghua Wei, and Lifeng Hou.