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, AndréBernard
• 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: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722789
• 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.

尽管所有钢在加工过程中都会经历多次相变，但最终的微观结构是连铸过程中形成的微观结构的直接结果。在这项与Stelco、塔塔钢铁公司和美国钢铁公司的合作研究中，将对先进钢的凝固微观结构进行综合实验研究，重点关注Mn和Si的作用、合金偏析和热撕裂。这两个要素预计将在开发下一代先进钢板、带钢和薄板钢中发挥关键作用。具体来说，将进行异位布里奇曼凝固实验以及原位高温激光扫描共焦显微镜凝固和半固态变形实验，以捕获不同加工条件下的凝固形貌和半固态变形图像。研究结果将使工业合作伙伴能够以受控且高效的方式铸造新钢材，同时保持高质量的产品，从而带来竞争优势和生产成本效益。