Reverse metallurgical engineering towards sustainable manufacturing of vehicles using Nb and Mo allo

来源 :第五届宝钢学术年会 | 被引量 : 0次 | 上传用户:ry0205
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  Steel is the dominant construction material for most industrial goods such as equipment,structures,buildings or vehicles.Although there have been great advances in steel technology over the last 4 decades,the industry currently faces serious sustainability challenges with regard to energy conservation,reduction of CO2 emissions and a generally more efficient use of resources.The principal connotation in this respect is increasing steel strength allowing to reduce component weight.However,it is also necessary considering in how far the modified steel properties interfere with typical manufacturing techniques established in the processing chain.A feasible method in this sense is a reverse approach starting from detailed knowledge of the manufacturing process and translating it back into the most suitable metallurgical and microstructural design of steel.Modifying steels towards better manufacturing performance typically involves innovative alloying and metallurgical processing concepts.Niobium and molybdenum are two of the most powerful alloying elements in helping to adapt microstructures and properties with regard to downstream manufacturing processes.The present contribution will highlight several examples how a reverse metallurgical engineering approach can be successfully applied to optimize the efficiency of subsequent manufacturing processes with a focus on the automotive industry.
其他文献
城市雨水利用在改善城市生态环境、缓解城市水资源短缺、防洪减灾和城市的绿化美化等方面,具有重大的社会、经济和环境效益。我们一直大力倡导开源节流,其实雨水本身就是城市的一种极有价值的资源,应充分加以利用。本文从雨水利用的意义入手,介绍了国内外雨水资源利用的现状和经验,筒述了我国城市雨水利用存在的问题,并进一步的提出了雨水利用的可行性和雨水利用的有效途径,并对我国城市排水规划中的雨水利用提出了一些建议。
近年来,突发公共事件频发,给各国各级政府带来愈发严峻的考验。应急管理体系的构建,不仅关系到城市本身的发展,更关系到人民的生命财产安全,对整个社会发展产生着广泛而持续的影响。美国、日本等一些发达国家和地区都已建立起运行良好的应急救援管理组织体制。南京在经济社会发展显著成就的同时,也面临着日趋增多的突发公共事件。本研究基于风险分析理论和方法,从南京综合应急管理体系构建的现状出发,分析其存在的问题,提出
随着全球气候问题的日益严峻,低碳绿色的生活方式和消费模式将成为我国经济建设和社会生活的重要方向。城市规划作为引导城市发展的重要手段,必然成为快速城市化进程中控制碳排放的直接手段。发展理想的低碳城市,低碳城市规划理论与方法也就成为必然的关键技术。本文针对传统城市规划在这方面存在的不足,论述了打造低碳城市的一些方法。通过低碳城市规划寻求城市发展的低碳化方向,探索面向未来可持续发展的低碳城市发展模式。
我国大城市发展迅速,城市地域范围不断扩张,并向城市群体空间演进,出现了都市区等新的城市空间形态。但不断恶化的城市交通问题正成为制约都市区化积极推进的桎梏。传统的交通规划在城市规划中位于从属地位,通常都是先做城市规划,之后在进行交通规划,没有反馈的话语权,从而引发了一些列交通和社会问题。本论文从此角度出发做了一些创新性的工作,即在昆明远景城市空间发展不确定的条件下,自下而上的进行交通需求预测的研究,
城市垃圾处理关乎每一个市民的环境利益,是城市重要的环境民生问题与社会问题,不仅关系到居民的道德修养程度,也是一个城市生态文明程度的标志.本文基于生态城市理念,生命周期评价方法,提出在生态城市建设中,垃圾处理规划制定的原则和主要方法.以重庆市为例,提出将分类收集率提高到30%和无害化处理率达到100%,并根据垃圾组分属性优化垃圾末端处理模式等规划措施,由生命周期环境影响和经济成本评价表明,规划方案在
It is well known that the corrosion resistance of galvanized steel can be greatly improved by means of suitable chromate based passivation.The effectiveness of chromate based passivation is without qu
It is well-known that the electrical steel of 6.5% Si has applications such as on making of high- frequency transformer due to its high electrical resistivity,low core losses,near zero magnetostrictio
Recent research that emphasizes electron backscatter diffraction ( EBSD) as a characterization tool has clarified the microstructure of dislocated martensitic steel formed by quenching moderate to lar
Requirement on the weight saving of automobiles has further been energetic for global environment and for saving natural resources.The steel which has tensile strength ( TS) more than 1,000 MPa and TS
使用真空直流磁控溅射技术在DI材表面制备Al膜,并对镀铝DI材的可加工性与制备条件及铝膜的厚度之间的关系进行了研究.杯凸和冲杯试验表明铝膜沉积时的基板温度和膜厚对铝膜的附着力和可加工性有较大影响,当铝膜厚度大于2 μm时,铝膜的附着力变差.当基板温度从室温升至200℃时,铝膜的附着性和冲压性能有明显提升。