ASSURE - Advanced Steel Shaping Using Reduced Energy

ASSURE - 使用减少的能源进行先进的钢材成型

• 批准号: EP/M014002/1
• 负责人: Claire Davis
• 金额: $ 24.45万
• 依托单位: University of Warwick
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FM014002%2F1
• 关键词: ASSURE; Advanced; Steel; Shaping; Using

Steel is the most used material in the world by value and second most used by weight (after concrete), it is also one of the most recyclable materials. In 2013 about 12 million tonnes of steel were manufactured in the UK, the majority at large integrated works such as the Tata Steel plants at Port Talbot and Scunthorpe. Energy constitutes a significant portion of the cost of steel production, from 20% to 40% depending on the plant. Whilst the amount of energy required to produce a tonne of steel has been reduced by 50% in the past 30 years, through improvements in steel making technologies, further improvements are necessary to allow the industry to remain competitive. Heating and reheating steel is responsible for most energy consumption in the steel supply chain. Therefore the introduction of new processing routes to minimise or eliminate reheating stages will have a dramatic effect on energy use, and, if this is coupled with reduced hot deformation requirements by casting to near net shape, further energy reductions can be realised. This project is concerned with establishing laboratory facilities for simulating the microstructures produced in steels during belt casting, or similar near net shape casting technologies. Belt casting has high productivity and therefore could be installed in large integrated steel works, such as those in the UK where conventional continuous casting to large sections is currently used. The introduction of this new technology would reduce energy consumption by > 3 GJ/tonne steel produced (based on savings of approximately 2 GJ/tonne from reduced hot rolling and approximately 1.25 GJ/tonne from near net shape casting). Reductions in CO2 emissions, due to the reduced energy use, is also significant; considering that 12 million metric tonnes of steel were produced in the UK in 2013, this project could result in a reduction in UK CO2 emissions of >0.4%. The major success criteria from this feasibility study will be to establish experimental simulation techniques that can accurately reproduce the solidification structures (micro-segregation levels, grain structure, surface characteristics) of belt cast material, where cooling rates of approximately 60 C/s can occur. This will be achieved using laboratory facilities for solidification studies (a Gleeble 3500 and a confocal scanning laser microscope) already present at the universities of Warwick and Birmingham, with additional equipment being acquired at Warwick (Gleeble HDS-V40) to allow uni-directional cooling during solidification and direct feed of the hot steel into deformation. This latter capability will generate a unique facility in the UK and allow further research to optimise processing conditions and steel chemistries to generate enhanced properties in advanced high strength steels (AHSS). Further success will be demonstrated by initial trials to determine casting process windows (cooling rates and composition limits) for producing an AHSS grade.

按价值计算，钢铁是世界上使用最多的材料，按重量计算，钢铁是第二大使用的材料（仅次于混凝土），它也是最可回收的材料之一。 2013年，英国生产了约1200万吨钢铁，其中大部分是在塔尔伯特港和斯肯索普的塔塔钢铁厂等大型综合工厂生产。能源占钢铁生产成本的很大一部分，根据工厂的不同，能源比例从 20% 到 40% 不等。虽然在过去 30 年里，通过炼钢技术的改进，生产一吨钢材所需的能源已减少了 50%，但仍需进一步改进，以保持该行业的竞争力。加热和再加热钢铁是钢铁供应链中大部分能源消耗的原因。因此，引入新的加工路线以最大程度地减少或消除再加热阶段将对能源使用产生巨大影响，并且如果再加上通过铸造成接近最终形状来减少热变形要求，则可以实现进一步的能源削减。该项目涉及建立实验室设施，用于模拟带式铸造或类似的近净形铸造技术期间钢中产生的微观结构。带式连铸具有高生产率，因此可以安装在大型综合钢铁厂中，例如英国目前使用传统的大截面连续铸造的钢铁厂。这项新技术的引入将减少超过 3 GJ/吨钢的能耗（基于减少热轧节省约 2 GJ/吨，以及近净形铸造节省约 1.25 GJ/吨）。由于能源使用量的减少，二氧化碳排放量也显着减少；考虑到 2013 年英国生产了 1200 万吨钢铁，该项目可以使英国二氧化碳排放量减少 0.4% 以上。该可行性研究的主要成功标准是建立实验模拟技术，能够准确再现带铸材料的凝固结构（微观偏析水平、晶粒结构、表面特征），其中冷却速率可以达到约 60 C/s。这将利用华威大学和伯明翰大学已有的用于凝固研究的实验室设施（Gleeble 3500 和共焦扫描激光显微镜）来实现，并在华威大学购买额外的设备（Gleeble HDS-V40），以允许在凝固过程中进行单向冷却，并直接将热钢送入变形。后一种能力将在英国建立一个独特的设施，并允许进一步研究以优化加工条件和钢铁化学成分，从而提高先进高强度钢（AHSS）的性能。进一步的成功将通过初步试验来证明，以确定生产 AHSS 等级的铸造工艺窗口（冷却速率和成分限制）。

项目成果

Implications of Accelerated Solidification Rates Seen in Belt Casting on Precipitation in Nb Bearing Steels

带式连铸中的加速凝固速率对含铌钢中析出的影响

• DOI: 10.1002/srin.201700358
• 发表时间: 2017
• 期刊: steel research international
• 影响因子: 2.2
• 作者: Slater C

Chemically Induced Solidification: A New Way to Produce Thin Solid-Near-Net Shapes

化学诱导凝固：生产薄固体近净形状的新方法

• DOI: 10.1007/s11663-016-0785-8
• 发表时间: 2016
• 期刊: Metallurgical and Materials Transactions B
• 作者: Slater C

Observation of the reversible stabilisation of liquid phase iron during nitriding

• DOI: 10.1016/j.matlet.2016.03.045
• 发表时间: 2016-06
• 期刊: Materials Letters
• 影响因子: 3
• 作者: C. Slater;S. Spooner;C. Davis;S. Sridhar

Characterisation of solidification using combined confocal scanning laser microscopy with infrared thermography

• DOI: 10.1016/j.matchar.2017.02.025
• 发表时间: 2017-04
• 期刊: Materials Characterization
• 影响因子: 4.7
• 作者: C. Slater;Kateryna Hechu;S. Sridhar

Effect of solidification rate on microstructure evolution in dual phase microalloyed steel.

• DOI: 10.1038/srep35715
• 发表时间: 2016-10-19
• 期刊: Scientific reports
• 影响因子: 4.6
• 作者: Kostryzhev AG;Slater CD;Marenych OO;Davis CL
• 通讯作者: Davis CL