The effect of hot rolling process parameters on the microstructure, toughness and damage evolution of High Strength Low Alloy (HSLA) steels

热轧工艺参数对高强度低合金（HSLA）钢显微组织、韧性和损伤演变的影响

• 批准号: 566520-2021
• 负责人: Bardelcik, AlexanderA
• 金额: $ 2.88万
• 依托单位: University of Guelph
• 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=753138
• 关键词: effect; hot; rolling; process; parameters

Stelco Inc. is a major Canadian steel producer and significant contributor to the national economy. High Strength Low Alloy (HSLA) steel is an important product for Stelco due to its significant application within the energy, infrastructure, transportation, and agriculture sectors. Stelco and the University of Guelph will investigate a number of different and novel HSLA grades that Stelco produces by varying hot rolling process parameters and steel chemistry. The goal of this research project is to link the effect of HSLA microstructural characteristics (carbon-rich phases, distributions, morphology, grain size, inclusions, precipitates) on the meso-scale damage evolution, large-scale fracture test performance, and ultimately toughness of the material. In this research effort, we will complete a (1) comprehensive microstructural characterization of the steels (2) conduct large-scale fracture testing at various temperatures and strain-rate (Charpy V-Notch, Uniaxial, Drop Weight Tear Test) (3) conduct in-situ SEM testing with digital image correlation (4) quantify damage evolution and use the data to (5) validate advanced representative volume element (RVE) finite element models of the microstructures. The successful execution of this project will allow Stelco to better understand design an HSLA microstructure that will result in a high performance material with enhanced toughness.

Stelco Inc.是加拿大主要的钢铁生产国，也是国民经济的重要贡献者。高强度低合金（HSLA）钢是Stelco的重要产品，因为它在能源，基础设施，运输和农业领域的大量应用。 Stelco和Guelph大学将通过改变热滚动过程参数和钢化学来调查Stelco产生的许多不同和新颖的HSLA等级。该研究项目的目的是将HSLA微观结构特征（富含碳富含碳的相，分布，形态，晶粒尺寸，夹杂物，沉淀物）的影响联系起来，对中尺度损伤演化，大规模裂缝测试性能以及最终的材料韧性。 In this research effort, we will complete a (1) comprehensive microstructural characterization of the steels (2) conduct large-scale fracture testing at various temperatures and strain-rate (Charpy V-Notch, Uniaxial, Drop Weight Tear Test) (3) conduct in-situ SEM testing with digital image correlation (4) quantify damage evolution and use the data to (5) validate advanced representative volume element (RVE) finite element models of the微观结构。该项目的成功执行将使Stelco能够更好地理解设计HSLA微观结构，从而导致具有增强韧性的高性能材料。