Towards better structural steels sections: optimisation of high frequency induction welded line pipe products

钢管在能源领域广泛应用于陆上和海上油气输送。产品由带钢经成型、焊接成型而成。由于潜在的恶劣环境，需要更高的强度和韧性，特别是在这些产品的焊接部分，特别是考虑到二氧化碳和氢气的运输，以满足未来能源部门的需求。本项目将考虑高频感应焊接过程中的微观组织发展，采用建模和实验方法，确定微观组织-性能关系，以及是否可以消除焊后的全管体回火热处理，从而节省成本，能源和二氧化碳

Steel line pipes are widely used in energy sector for onshore and offshore oil and gas transportation. The products are produced from strip by forming and welding to shape. Due to the range of potentially harsh environments, there is a need for higher strength and improved toughness especially on welded part in these products, particularly with considerations for CO2and H2 transportation to meet the future energy sector needs. This project will consider the microstructure development during the high frequency induction welding process, using both modelling and experimental methods, to determine the microstructure - property relationships and if the full pipe body tempering heat treatment post welding can be eliminated, giving cost, energy and CO2 savings