Understanding the Steelmaking and Casting Issues for Commercial High-Al AHSS Production

摘要：

　　ArcelorMittal USA is striving for commercial production of high-Al AHSS grades to meet the need for stronger and lighter materials for the automotive industry.During the steelmaking,refining and casting processes,special phenomena have been discovered that cannot be easily explained based on current understanding of regular Al-killed steels that integrated carbon steel producers have been making for the past 50 years.This present work provides a summary of these special phenomena,including the beneficial ones such as very low nitrogen,very low oxygen,very low sulfur,low nozzle clogging etc.together with the adverse ones such as high Mg content,faster changing mold slag chemistry and reverse segregation of Al to all other elements.Attempts are made in the following pages to give some explanations for these observations.However,in order to make process and quality improvements in production,more research is needed.The purpose of this paper is to draw the attention of academia and industry partners alike to overcome these challenges.

关键词： steelmaking secondary metallurgy casting AHSS high aluminum content

作者: Hongbin YIN Bill SOURONIS Chandan ROY George SKOCZYLAS

作者单位: ArcelorMittal Global R&D USA ArcelorMittal USA Indiana Harbor Quality Assurance ArcelorMittal USA Indiana Harbor Operation Technology ArcelorMittal USA Burns Harbor Quality Assurance

会议类型: 国际会议

会议名称: the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)

会议地点: 北京

会议语种:英文

页码: 1016-1019

在线出版日期: 2015-05-12（万方平台首次上网日期，不代表论文的发表时间）