可锻铸铁组织及硬度无损检测  

Non-destructive Testing For Microstructure and Hardness Prediction of Malleable Iron

作　　者：李贵成[1] 

机构地区：[1]天津大学

出　　处：《铸造技术》1998年第2期6-9,共4页Foundry Technology

摘　　要：提出利用材料的磁导率检测可锻铸铁金相组织及硬度的新方法。通过对材料磁导率的相对比较测试，取得大量数据，建立起可锻铸铁磁导率、组织和硬度之间的相应关系。工厂应用实践表明，检测曲线和数学模型能够满足工程测试要求。In this paper, a new method for measuring the microstructure of malleable iron by employing the magnetic permeability is put forward. A lot of data are obtained through mutual comparison measuring of magnetic permeability. The relations among microstructure; magnetic permeability and hardness are established. It is shown that the measuring curves and mathematical functions can meet the requirements of engineering measurements in the production.

关 键 词：可锻铸铁 无损检测 磁导率 硬度 

分 类 号：TG143.4[一般工业技术—材料科学与工程]