先进高强度汽车用钢研究进展及展望

Progress and perspective of advanced high strength automotive steel

安全、环保、节能成为当前汽车制造业发展的主题,采用高强度钢板制造的车身不仅可以有效减轻车身重量,降低油耗,还可以提高汽车的安全性和舒适性,是同时实现车体轻量化和提高碰撞安全性的最佳途径。针对汽车车身轻量化的发展趋势和技术要求,重点介绍了双相(Dual-phase, DP)钢、复相(Complex-phase, CP)钢、淬火配分(Quenching and partitioning, Q&P)钢、热成形钢、中锰钢以及低密度钢等先进高强度汽车用钢的微观组织和力学性能特征、工艺参数控制和强韧化机制研究等内容的现状和最新成果,并针对不同种类的先进高强度汽车用钢的优化控制思路提出了介绍和建议,相关的研究结果内容为高性能汽车用钢的研发与生产具有一定的指导意义,为实现更高强度、更高塑韧性以及优良服役性能的先进高强度汽车用钢的设计、研发与应用提供了有益的参考。

Safety, environmental protection and energy saving become the development themes of the current automobile manufacturing industry. The car body made of high-strength steel plate can not only effectively reduce the weight and fuel consumption, but also improve the safety and comfort of the car. It is the best way to realize the lightweight of the car body and improve the crash safety at the same time. The present situation and latest achievements of advanced high strength automobile steel such as DP steel, CP steel, Q&P steel, hot-stamped steel, medium manganese steel and low density steel with the development trend and technical requirements of automobile body lightweight were introduced. And it also puts forward the introduction and suggestions for the optimization control of different kinds of advanced high-strength automotive steels. The related research results have certain guiding significance for the research and development and production of high performance automobile steel, and provides beneficial reference for the design, development and application of advanced high strength automobile steel with higher strength, higher plasticity and excellent service performance.