Small Scale Laboratory to Large Scale Component Manufacture - Scaling of Heat Treatment Behaviour of Low Alloy Steels

从小规模实验室到大型部件制造 - 低合金钢热处理行为的缩放

• 批准号: 2261396
• 金额: --
• 依托单位: University of Sheffield
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2261396
• 关键词: Small; Scale; Laboratory; Large; Component

This doctoral project is a collaboration between the CDT in Advanced Metallics at the University of Sheffield and Rolls Royce (Derby) in low alloy steel, aiming to bridge the gap between small scale laboratory heat treatment measurements and the conditions experienced during large scale manufacturing processes. This is a challenging step for manufacturing, as behaviour observed in laboratory specimens weighing as little as a few grams is not always directly relevant to components weighing hundreds of tonnes. Understanding how these differences arise is key to relating what can be measured accurately and routinely in a laboratory environment to the optimisation and robustness of large scale industrial processes. The major themes of this project are to;1) Establish a meso-scale measurement capability for phase changes and mechanical performance in structural, pressure vessel and high integrity bolting grades of low alloy steels,2) Explore the effect of inherent variation in the material; this could be due to compositional segregation or processing variability,3) Further refine the understanding of heat transfer during furnace heating and liquid quenching of components through defining key inputs to models and undertaking measurements of thermo-physical properties as required.

这个博士学位项目是谢菲尔德大学的高级金属质量与低合金钢的劳斯莱斯（Derby）之间的合作，旨在弥合小规模实验室热处理测量和大规模制造过程中所经历的条件之间的差距。这是制造业的挑战性步骤，因为在重量低至几克的实验室标本中观察到的行为并不总是与重量数百吨的组件直接相关。了解这些差异是如何与大规模工业过程的优化和鲁棒性相关联的关键是将可以准确，常规的实验性衡量的关键。该项目的主要主题是; 1）建立一个中尺度的测量能力，以实现相变和机械性能在结构，压力容器和高质合金钢的高度螺栓上的机械性能，2）探索材料固有变化的效果；这可能是由于成分隔离或加工变异性，3）进一步完善对炉加热过程中传热和液体淬火组件的理解，通过根据需要定义模型的关键输入并进行测量，并根据需要进行测量。