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。     

超轻汽车车体用钢热镀锌的研究及应用现状

综述了超轻汽车车体用钢热镀锌的研究及应用现状,重点介绍了烘烤硬化钢、高强度IF钢、双相钢、相变诱导塑性钢等热镀锌的生产工艺和性能影响因素。     

鞍钢汽车用钢生产取得重大突破

日前,采用先进工艺技术生产出的第1卷汽车用钢TWIP980(孪晶诱发塑性)在鞍钢股份冷轧厂下线,经检测各项性能指标符合要求。这是鞍钢在国内率先采用该工艺路线生产出的高强塑汽车用钢TWIP980,使新一代TWIP钢     

汽车用合金化热镀锌钢板的发展趋向

论述了国内外汽车用合金化热镀锌钢板的发展趋向。简要介绍了合金化热镀锌IF钢的传统强化方法和新强化技术的应用，并指出该钢种主要是在保证优良成型性能的前提下逐渐向高强化方向发展；详细介绍了340MPa级别合金化热镀锌烘烤硬化钢的开发情况，指出该钢种主要向易成型、抗粉化和抗时效方向发展；简要介绍了合金化热镀锌低碳当量型高强钢和双相钢的开发进展情况，指出该钢种主要向易成型方向发展。还简述了目前合金化热镀锌TRIP钢的开发进展情况，并指出我国应大力发展汽车用合金化热镀锌钢板，特别是高强度级别的合金化热镀锌钢板，以满足我国飞速发展的汽车工业需求。     

先进高强钢氢致断裂的研究

简要概述了氢致断裂的作用机理、钢中氢的来源,存在形式以及国内外氢致断裂理论的发展。介绍了先进高强钢氢致断裂研究的意义和实验方法。分析了以双相钢、孪晶诱导塑性钢和淬火配分钢为代表的先进高强钢氢致断裂的研究进展,为先进高强钢氢致断裂的研究和预防提供了参考。     

先进高强度汽车钢的发展趋势与挑战

 高强钢在汽车轻量化、节能减排、成本方面具有一定的优势与潜力，目前，仍是汽车的主要材料。高强钢的使用比例逐年增加，并且向更高强度方向发展，生产方式呈现出钢板“以热代冷”、零件成形“以冷代热”的低成本发展趋势，依靠亚稳奥氏体增强、增塑的第三代汽车钢成为先进高强钢的重要发展方向，然而，先进高强钢的发展给材料、工艺、装备等带来了新的挑战。     

攀钢成功试制热镀锌双相钢新品种

<正>近日,由研究院、西昌钢钒和鞍钢蒂森克虏伯(重庆)汽车钢有限公司联合研发的1000MPa级低碳当量热镀锌双相钢试制成功。据悉,双相钢具有低屈服强度、高抗拉强度和良好成形性能等特性,广泛应用于汽车结构件和加强件,是目前用量最大的先进高强钢。1000MPa级热镀锌双相钢由于微合金含量高、变形抗力大和镀锌容易漏镀等因素,生产难度极大,能够充分反映     

新一代汽车用先进高强钢的成形与应用

针对目前国内外汽车发展现状及对汽车用高强钢使用性能的需求,综合分析了先进高强钢研究开发的热点和发展趋势,重点分析了新一代先进高强钢的变形行为、成形技术及成形性、构件碰撞性能的研究和应用现状,对未来发展进行了展望。同时指出,在先进高强钢(AHSS)的开发和应用上,面对来自客户和加工制造方面的挑战,需要搞清和解决先进高强钢微观组织的精细构成特征与变形过程中微观缺陷形成发展的内在规律、高强钢板在动态变形条件下的变形行为表征、高强钢板构件碰撞性能科学评估方法及体系。形成新一代汽车用先进高强钢的成形及应用技术基础,为实现以节能减排和安全性为标志的新一代汽车用先进高强钢在中国的加快发展和应用打下坚实的基础。     

宝钢开发出为汽车“减重节能”的热镀锌TRIP钢

日前，宝钢成功开发出热镀锌TRIP钢板。热镀锌TRIP钢又称为热镀锌相变诱发塑性钢，兼有高强度和高延伸率，是应对汽车“减重节能”所用高强度钢板中的一种。自2002年宝钢实现600兆帕级别冷轧TRIP钢的产业化后，研究院汽车用钢研究所克服了诸多困难，在国内率先成功试制出强度级别为600兆帕的热镀锌TRIP钢，产品实物性能达到国际同类产品水平。     

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.     

超低碳钢的历史与发展

详细论述了超低碳钢的历史与发展，反映了国际上超低碳钢研究的最新成果。介绍了超深冲ＩＦ钢，深冲热镀锌ＩＦ钢，高强度热镀锌ＩＦ钢，超低碳ＢＨ钢，超低碳热轧深冲钢。     

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。     

国外900MPa级TWIP钢专利技术简述

本文根据安赛乐米塔尔和蒂森克虏伯世界著名钢铁公司2008年在世界知识产权组织（WIPO）申请公开的典型专利技术,概述了汽车用结构件、加强件或外挂件等用途的900MPa级孪晶诱发塑性钢,即TWIP钢的最新研发动态,特别是详细介绍了生产高强度、高塑性以及具有优良涂镀性的开发技术方案。开发钢可以以热轧板、冷轧板及镀层板形式交货。     

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.     

The development of surface treatment products and technologies of steel sheets in Baosteel

The surface treatment technology can improve the corrosion resistance of steel sheets and increase the value of steel application.The surface treated steel sheets in Baosteel include zinc galvanized steel sheets,sin galvanized steel sheets,chromium galvanized steel sheets,and colour coating steel sheets with the application in the area from construction to automobiles,appliance,package,etc.The development,application and manufacturing technique of these products have become the core competition power of Baosteel. The article reviews the developments of surface treated steel sheets and surface treatment technologies in Baosteel in 10 years,especially hot dip galvanized high strength steel products used in vehicles.The article also looks forward into further developments of surface treatment steel products and technologies in Baosteel,which will focus on:①the new products of hot dip galvanized advanced high strength steels;②more environmental friendly products or functional coating products;③the development of surface treatment technologies to meet the requirement of higher surface quality in the marcket;④new type of surface treatment and coating technologies.     

汽车用高强度钢板的最新研究进展

应用高强度、高性能钢板是汽车减轻质量、提高安全性的基础。为适应汽车工业发展的需要，利用各种强化机制的多种组合开发出具有各种不同性能的高强度钢板。简述了高强度汽车用钢板的最新研究进展，包括热轧钢板、冷轧与热镀锌钢板、以及TWIP钢等。     

New thermomechanical strategy for production of high strength low alloyed multiphase steel showing transformation induced plasticity effect

Abstract

In the past few years a lot of research was carried out on the development of transformation induced plasticity (TRIP) assisted multiphase steels. Two principal ways were proposed: (i) controlled cooling during the hot rolling process to obtain hot rolled TRIP assisted multiphase steels and (ii) the combination of intercritical annealing and isothermal holding at bainite formation temperatures during continuous annealing resulting in cold rolled TRIP assisted steel products. Unfortunately, both thermomechanical methods proposed require a high silicon level to inhibit cementite precipitation to avoid a loss of stability for the metastable retained austenite. In addition, due to high silicon levels, red scale surface defects appear and only moderate hot dip galvanisability is possible. In this paper a new thermomechanical strategy for the production of high strength low alloyed TRIP assisted multiphase steels with good hot dip galvanisability and without red scale defects will be presented.     

国内冷轧汽车用钢的研发历史、现状及发展趋势

回顾了我国冷轧汽车用钢的研发历史,总结了我国冷轧汽车用钢的现状,结合国家振兴钢铁工业的政策,分析了我国冷轧汽车钢板的发展趋势。提出国内有必要发展新一代先进高强汽车用钢,主要包括TWIP钢、Q＆P钢和热冲压成型钢等,此举不仅具有巨大的经济意义,还具有保证行驶安全、节能减排、环保的现实意义。     

Advanced Cold Rolled Steels for Automotive Applications

Advanced high‐strength steels offer a great potential for the further development of automobile bodies‐in‐white due to their combined mechanical properties of high formability and strength. They represent the first choice in material selection for strength and crash‐relevant parts with challenging geometries. The intensive development of multiphase steels by ThyssenKrupp Steel has led to hot dip galvanizing concepts with an outstanding forming potential. Hot rolled, hot dip galvanized complex‐phase steels are currently produced in addition to cold rolled dual phase (DP) and retained austenite (RA) or transformation induced plasticity (TRIP) steels. New continuously annealed grades of steel are being developed with tensile strength levels of up to 1000 MPa in combination with sufficient ductility for the high demands of structural automobile components. These steels make use of the classic advantages of microalloying as well as the principles of DP steels and RA / TRIP steels. Further improvement of properties will be reached by the new class of high manganese alloyed steels.