先进高强度汽车用钢板研究进展与技术应用现状

综述了第一、二、三代先进高强度汽车用钢的理论研究与生产现状,并具体介绍了辊压成形、液压成形、热成形、百足成形和链模成形等几种先进高强钢应用技术的最新进展。先进高强度用钢成分与性能体系趋于完备,强塑积从10GPa·%到60GPa·%钢种的研发与应用极大地满足了汽车轻量化选材与用材的需求,可以预见兼具高强度与高塑性的第三代先进高强度汽车板是未来发展的方向,将得到越来越广泛地应用。先进高强度用钢仍有很多与生产相关的技术需要突破,应用技术的开发也需要加大力度。     

先进的高强度钢及其在汽车工业中的应用

对先进的高强度钢及其在汽车工业中的应用进行了评述，详细介绍了先进的高强度钢的定义、范围、性能特点，高的应变硬化特性，成形性、回弹等，以及成形构件的性能，硬化增量及撞击吸能；最后介绍了这类钢的发展趋势和在汽车轻量化中的应用前景。     

汽车用先进高强度钢开发和研究的进展

先进高强度钢已经在汽车上得到了广泛应用，并在汽车的减重、安全、节能、环保等方面表现出广阔的前景。强度更高、成型性更好的新型先进高强度钢的开发也得到越来越多的重视。对正在开发的新型先进高强度钢开发和研究现状进行了简述，并对下一代高强度钢的研究进行了预测。     

马钢“高强度冷轧系列双相钢制造及应用技术”通过省重大科技攻关项目验收

<正>安徽省重大科技攻关项目"高强度冷轧系列双相钢制造及应用技术",是顺应汽车轻量化和高性能要求趋势,基于马钢先进的汽车板生产线及研发积淀而开展的攻关项目,利用马钢先进连续退火生产线在国内首家采用高H2喷气冷却控制技术,通过合理的退火工艺设计,开发出系列高强度冷轧双相钢产品;项目组开展汽车用高强度冷轧双相钢成形仿真、焊接、涂装磷化应用技术研究,填补了马钢在汽车用高强钢成形仿真、焊接、涂装磷化应用技术研究上的空白;并     

先进高强度汽车用钢研究进展及展望

北京实验室, 北京 100083;3.北京市交通与能源用特殊钢工程技术研究中心, 北京 100083摘要：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。     

先进高强钢的显微组织与力学性能

为满足汽车轻量化发展的需求,开发了大量的先进高强度钢,如DP钢、TRIP钢、CP钢、M钢、TWIP钢等.与普通高强钢相比,先进高强钢具有高强度,高能量吸收性、高加工硬化率及优良的烘烤硬化和成形性能等一系列优点,在理论研究和实际应用上引起了人们极大的关注.近年来,世界各国纷纷致力于先进高强钢的研究开发.文章简要介绍了先进高强钢的显微组织与力学性能.     

汽车轻量化将引领钢铁企业转型升级

<正>汽车排放标准不断提高,汽车轻量化成大势所趋。据测算,采用先进超高强度钢板实现汽车减重10~20%以上,相应节油6~12%以上。我国乘用车高强度钢板应用比例一般为35~40%,采用先进超高强度钢的比例不足10%,而国外     

汽车用先进高强钢的发展及其在车身设计中的应用

当今社会的能源和环境问题日益突出,因此在保证安全的前提下实现车身减重以降低油耗和排放是现代汽车工业的发展趋势。综合比较可供选择的汽车用材,汽车轻量化的首选材料是高强度钢。对于汽车安全而言,最基础、最重要的是结构设计,最新的车身安全设计理念认为安全车身应该包括:前后碰撞变形区和高强度乘员舱。本文通过比较传统高强钢和先进高强钢的特点,重点介绍了先进高强钢的发展现状及其在车身设计中的应用。     

新型汽车用高强度钢的应用现状与发展趋势

对先进的高强度钢及其在汽车工业中的应用进行了评述,详细介绍了几种高强度钢,如烘烤硬化钢、双相钢、相变诱发塑性钢等的原理、成分、性能特点以及目前的应用现状与开发进展状况.简述了高强度钢板在成形中所遇到的延伸凸缘性和弯曲成形性有所降低、回弹和弯曲开裂现象增多等问题,指出应把高强度钢板研究与对应的成形应用技术研究结合起来.还简述了国内外在高强度钢板上的研究方向,即在进一步提高强度、降低车重的同时,综合考虑安全、成形等因素,通过更多的新的强化机制来提高强韧性.     

高强度薄钢板研究的新进展及其在汽车上的应用

通过分析钢板强化机制，并结合国内外高强度薄钢板研究的最新进展，分别就热轧和冷轧高强度薄钢板的组织成分特征、产品性能、生产工艺特点以及在汽车上的应用等进行了全面的研讨。将有益于提高我国高强度薄钢板生产技术水平，进一步促进高强度薄钢板在汽车上的应用。     

鞍钢先进高强汽车用钢的研制开发

介绍了鞍钢先进高强汽车用钢开发研制情况,包括以980 MPa级DP钢、TRIP钢、TWIP钢和QP钢为代表的热轧、冷轧和热镀锌先进高强钢系列产品,以及鞍钢开发的先进高强钢热镀锌生产技术,并对鞍钢先进高强汽车钢未来的发展方向进行了展望。     

The Development of Advanced HSLA Steel in Angang in Low Carbon Age

The structure steel industry has experienced a revolution during four decades.Faced the challenge of global change in climate and environments,the higher strength,higher ductility steels,environment friendly steel were needed.The R and D for high strength steel production and application in Angang has made impressive progress.However more attention had been paid on the development of new type high strength steels with higher strength and better properties.The multi-phase microstructure,lower y/s,and corrosion resistance performance structure steel results in new generation advanced high strength steel which have properties that are often much superior to those exhibited by the old steels.This paper presents a general review of new generation high strength steel research and development in Angang and predicts the development for advanced high strength steel in the foreseeable future.     

Research of DP600 high strength steel wheels

Steel has been used as a traditional wheel materials for a long time.Before 1980’ s,over 90% wheels were made of steels.Then,the yield strength of wheel steels increased gradually from 240 -350 MPa to 600 MPa or higher.The advanced high strength steels become the main wheel materials.Since 1990’s,DP600 has been broadly applied in steel wheels oversea.However,there was little research of application of high strength steel wheels(especially wheel disc) in domestic wheel industrial.In presence, DP600 steel wheel is only developed in FAWSH by using imported CKD.Other domestic steel wheel manufacturers did little work on high strength DP600 wheel discs.Baosteel wheels Co.Ltd.is the first domestic company producing DP600 steel discs and has become the leading company in production of high strength wheel.Because of the high strength of DP600,its formability,springback,and wrinkle have become the keys of the successful application of DP600 steel.In this paper,the metallurgical and mechanical properties are firstly introduced and formation problems of DP600 are described compared to traditional steels.Secondly,FLD analysis has been done.Wrinkle and more springback are recognized.To solve these problems,an optimized solution is designed and the good result is obtained.The test has shown that the fatigue property of steel wheel discs made by DP600 have been greatly improved.     

首钢热轧酸洗先进高强钢的开发与进展

介绍了首钢热轧酸洗先进高强钢的开发与进展。根据客户的使用要求，结合生产设备，首钢研发了双相钢、高扩孔钢、复相钢、相变诱导塑性钢等系列高强钢。分析了双相钢、高扩孔钢、复相钢以及相变诱导塑性钢等产品的化学成分和力学性能，并利用金相显微镜和扫描电镜等手段对微观组织特征进行了描述。首钢热轧酸洗先进高强钢因出色的力学性能已经在汽车控制臂和纵梁等零件上得到广泛应用，未来将在乘用车减重和安全等方面发挥更大作用。     

汽车轻量化先进高强钢与节能减排

 介绍了近年世界及中国汽车发展概况,现代汽车发展对材料的要求,汽车轻量化所面临的减重节能与排放要求,先进高强钢的开发应用所面临的挑战。指出了大量开发应用先进高强钢不仅为汽车轻量化带来显著的节能减排效果,同时在提高安全性和回收再利用等方面也具有优势。研究先进高强钢的成形控制技术,形成先进高强钢的生产、应用与服务的成套技术是今后需要重点考虑的课题。     

鞍钢高品质汽车板的研制开发

介绍了鞍钢目前已经开发出的以IF钢为代表的深冲钢系列品种,以烘烤硬化钢为代表的高强深冲钢系列品种,以DP、TRIP钢为代表的先进高强钢系列品种,以05板为代表的高表面质量的冷轧板系列品种,并根据用户的个性需求,开发出了具有不同特性的冷轧钢板。今后,鞍钢将通过新一代汽车用钢的开发和应用技术研究,为汽车行业的轻量化进程提供有力的技术支持。     

Ultra-high strength sheet steel property developments

Conventional advanced high strength steels(AHSS) such as dual-phase,TRIP and martensitic sheet products have undergone extensive development and substantially increased implementation in automobile structures over the past few years.Efforts are now underway to extend these improvements and develop steels with even greater strengths and formability.A variety of alloy/process/microstructure/property approaches aimed at next generation AHSS properties are highlighted here.One approach involves the quenching...     

中国商用飞机高强度不锈钢的现状及发展趋势

 从国内高强度不锈钢发展及分类的角度介绍了各类高强度不锈钢的主要牌号、强度级别、主要优缺点以及应用领域;从商用飞机典型件选材的角度介绍了几种高强度不锈钢的实际应用;展望了国内高强度不锈钢的发展,指出了限制不锈钢发展的因素和今后的发展方向。     

Shear Fracture of Advanced High Strength Steels

Failure experiments were carried out through a stretch-bending test system for advanced high strength steels, i.e. dual-phase （DP） steels and martensitic steels （MS）. The die radius in this system was designed from 1 to 15 mm to investigate the failure mode under different geometries. Two failure modes were observed during the ex- periments. As a result, critical relative radii （the ratio of inner bending radius R to sheet thickness t） for DP590 and DP780 steels were obtained. The stretch-bending tests of DP980 display some trends unlike DP590 and DP780 steels, and curve of DP980 in different thicknesses does not coincide well. High blank holder force exhibits more possibility of shear fracture tendency than low blank holder force. The unique character of high strength martensitic steel （1500MS） is that no shear fracture is found especially over small bending radius （R =2 mm） under the same experi- mental conditions. Microstructure analysis indicates that there are obviously elongated grains on shear fracture sur- face. It shows smaller diameter and shallower depth of the dimples than the necking failure.     

Niobium in Engineering Steels for Automotive Applications

In the last decade, the European niobium consumption in automotive strip and sheet has more than tripled. The development of high strength and advanced high strength steel grades for strip and plate products focused upon constantly increasing strength levels combined with excellent fatigue properties as well as formability and weldability. Until now, the high potential of microalloyed steel has not been used to the same extent in forgings and springs. This paper reviews automotive components as transmissions, suspensions and springs highlighting new material solutions for special steels having optimized processing and in‐use properties. Special consideration is given to the metallurgical background as well as to examples for the processing and application of niobium microalloyed steel in forgings and springs from low carbon and higher carbon containing steels. Niobium metallurgy permits the reduction of carbon to meet more stringent end‐user requirements demanding high strength combined with improved toughness, fatigue strength and weldability at a competitive manufacturing cost.