Model of Magnetic Barkhausen Noise for Characterization of Steel Materials

用于表征钢材的巴克豪森磁噪声模型

• 批准号: RGPIN-2017-06365
• 负责人: Krause, Thomas
• 金额: $ 2.26万
• 依托单位: Royal Military College of Canada
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=638533
• 关键词: Model; Magnetic; Barkhausen; Noise; Characterization

The goal of this scientific investigation is to develop portable surface magnetic Barkhausen noise (MBN) capability for non-destructive characterization of ferromagnetic steel properties. The goal includes combined measurement of residual stress, degree of plastic deformation, grain size, carbon content, crystallographic texture, magnetic anisotropy and, in the case of electrical steels, core loss. Motivation for this work is the requirement for rapid identification of steel type and evaluation of stress state within structures such as submarine and ship hulls, oil and gas pipelines, motor or transformer laminates, landing gear in aircraft and cases where structures may have undergone localized damage and/or repair. Development of tools, analysis methods and modeling, along with identification of factors that affect the measurement outcome will facilitate application of MBN analysis and advance its potential as a diagnostic tool for identification and characterization of steel materials.

这项科学研究的目的是开发可移植的表面磁性barkhausen噪声（MBN）能力，以实现铁磁性钢性质的非破坏性表征。该目标包括剩余应力，塑性变形的程度，晶粒尺寸，碳含量，晶体学质地，磁各向异性的结合测量，以及在电钢的情况下，核心损失。这项工作的动机是需要快速识别钢铁类型并评估诸如潜艇和船体，石油和天然气管道，电机或变压器层压板，飞机和结构可能经历局部损坏和/或修复的情况的结构内的应力状态。开发工具，分析方法和建模以及影响测量结果的因素的识别将有助于应用MBN分析，并提高其作为识别和表征钢材材料的诊断工具的潜力。