Insitu and exsitu observation of solidification and semisolid deformation of advanced steel alloys

先进钢合金凝固和半固态变形的原位和异位观察

• 批准号: 556327-2020
• 负责人: Phillion, AndréBernardAB
• 金额: $ 1.82万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=758228
• 关键词: Insitu; exsitu; observation; solidification; semisolid

Although all steels undergo multiple phase transformations during processing, the final microstructure is a direct result of the microstructure formed during continuous casting. In this collaborative study with Stelco, Tata Steel, and US Steel, an integrated experimental study of solidification microstructure in advanced steels will be carried out focusing on the role of Mn and Si, alloy segregation, and hot tearing. These two elements are expected to play a key role in developing the next generation of advanced plate, strip and sheet steels. Specifically, ex situ Bridgman solidification experiments, and in situ high-temperature laser scanning confocal microscopy solidification and semi-solid deformation experiments will be carried out to capture solidification morphologies and image semi-solid deformation under different processing conditions. The findings will enable the industrial partners to cast new steels in a controlled and efficient way while maintaining a high quality product, thus leading to competitive advantages and production cost benefits.

尽管所有钢在处理过程中都经历了多个相变，但最终的微观结构是连续铸造过程中形成的微观结构的直接结果。在与Stelco，Tata Steel和US Steel的这项合作研究中，将对高级钢中的固化微观结构进行综合实验研究，重点关注MN和SI，合金分离和热撕裂的作用。预计这两个元素将在开发下一代高级板，带状钢和薄板钢中发挥关键作用。具体而言，将进行原位Bridgman固化实验，以及将进行原位高温激光扫描共聚焦显微镜固化和半固定变形实验，以捕获不同处理条件下的固化形态和图像半固体变形。这些发现将使工业合作伙伴能够在维持高质量产品的同时以受控和高效的方式施放新钢，从而带来竞争优势和生产成本优势。