High Manganese Steel Production Fundamentals

钢铁生产商必须向汽车和轻型卡车制造商提供更好的高强度钢。 最近的法规规定了严格的车辆温室气体排放和乘客安全目标。 正在开发的新型先进高强度钢（AHSS）有望帮助汽车设计师满足这些规格，但其合金概念与目前制造的钢有很大不同。 预期合金锰含量为5%至22%，而目前为2%。 这些都给通过铸造生产的原钢带来了复杂的问题，而且几乎没有基本的信息来指导工业工艺工程师解决这些问题。 该提案解决了围绕AHSS等级生产的基本问题，由四个工业支持者开发，他们将提供验证数据，具有五个具体目标：（1）定义高产锰合金化策略，（2）探索由Hatch Ltd.开发的CRISP炼钢反应器的潜力，生产高锰钢。（3）评估高锰钢的AOD精炼效率，（4）模拟高锰钢的钢包精炼动力学，包括改变渣/金属/夹杂物组成和脱硫，并评估与夹杂物形成和去除相关的基本科学问题。（5）根据高锰钢的凝固和热脆特性的测量，确定连铸高锰钢的安全操作窗口。 这些基本的工艺冶金问题对未来的加拿大钢铁和汽车制造业至关重要，这两个行业总共创造了超过1000亿美元的业务，雇用了135，000人，并且与NSERC SGP目标领域3 -制造业有关-特别是新结构材料的商业化和工艺建模。

Steel producers must as never before supply car and light truck makers with better high strength steels. Recent regulations impose demanding vehicle greenhouse gas emissions and passenger safety goals. New classes of advanced high strength steels (AHSS) under development promise to help automotive designers meet these specifications but are based on alloy concepts substantially different from currently made steels. Alloy manganese levels of five to 22 percent are contemplated vs. current two percent. These create complex issues for raw steel production through casting, and there is little fundamental information to guide industrial process engineers to resolve them. This proposal addresses basic questions around AHSS grade production, developed with four industrial supporters who will provide validation data, with five specific aims: (1) Define high-yield manganese alloying strategies, (2)Explore the potential for the CRISP steelmaking reactor, developed by Hatch Ltd., to produce high manganese steels. (3)Assess AOD refining efficiency for high Mn steels, (4) Model ladle refining kinetics for high manganese steels, including changing slag/metal/inclusion compositions and desulphurization, and assess basic scientific issues related to inclusion formation and removal. (5)Define safe operating windows for continuous casting high-Mn steels based on measurements of their solidification and hot brittleness characteristics. These basic process metallurgy issues are critical to future Canadian steel and automotive manufacturing, which together generate over $100 billion in business and employ 135,000 persons, and pertain to NSERC SGP target area 3 - Manufacturing - specifically commercialization of new structural materials and process modeling to enable this.