Driving Force and Logic of Development of Advanced High Strength Steels for Automotive Applications

The major scientific and technological advances and breakthroughs of advanced high strength steels (AHSS) were achieved due to the strong demands of automotive industry. The development of AHSS began in the early 1980s with the aim of improving passenger safety and weight-saving. The present paper presents the driving forces and logic of development of various AHSS for automotive applications since 1980s. The importance of crash performance, weight-saving, formability, and rigidity are critically reviewed for the development of new steel grades for automotive applications. The logical sequences of the development of dual phase (DP) steel, transformation induced plasticity (TRIP) steels, tempered DP steels, complex phases (CP) steels, Ferrite-Bainite steels, hot-stamping technology, twinning induced plasticity (TWIP) steels, Quench and Partitioning (Q&P) steels, Medium Mn steels, and steels-polymer composites are presented.

先进高强度钢（AHSS）的重大科技进步和突破是由于汽车工业的强烈需求而实现的。先进高强度钢的发展始于20世纪80年代初，目的是提高乘客安全性和减轻重量。本文介绍了自20世纪80年代以来用于汽车应用的各种先进高强度钢发展的驱动力和逻辑。对于汽车应用新钢种的开发，碰撞性能、减重、成形性和刚性的重要性得到了批判性的综述。介绍了双相（DP）钢、相变诱导塑性（TRIP）钢、回火双相钢、复相（CP）钢、铁素体 - 贝氏体钢、热冲压技术、孪晶诱导塑性（TWIP）钢、淬火和分配（Q&P）钢、中锰钢以及钢 - 聚合物复合材料发展的逻辑顺序。