Evaluation of chill contents in flake graphite cast irons using AC magnetization method

Tetsuya Uchimoto, Jun Matsukawa, Toshihiko Abe, Toshiyuki Takagi, Takeshi Sato, Hiroyuki Ike, Takahito Takagawa, Noritaka Horikawa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


In this study, feasibility of evaluation for chill contents in flake graphite cast iron is investigated based on AC magnetization method, which is one of the electromagnetic nondestructive evaluation methods. Magnetic properties of flake graphite cast iron samples with different chill contents were measured by a B-H loop analyzer in order to discuss their relation to chill contents. It was found that some magnetic parameters of the flake graphite cast iron depend on the contents of matrices and graphite. Especially, the hardness, which reflects chill contents, has good correlation with the area of hysteresis loop at relatively high frequencies. Focusing on the finding, AC magnetization method was applied to evaluation for the chill contents. Through the experiment, it was found that there is a correlation between hardness of flake graphite cast irons with chill and signals. In consequence, AC magnetization method has a capability of evaluating chill contents in flake graphite cast irons.

Original languageEnglish
Title of host publicationElectromagnetic Nondestructive Evaluation (XI)
EditorsAntonello Tamburrino, Yevgen Melikhov, Zhenmao Chen, Lalita Udpa
Number of pages8
Publication statusPublished - 2008

Publication series

NameStudies in Applied Electromagnetics and Mechanics
ISSN (Print)1383-7281
ISSN (Electronic)1879-8322


  • AC magnetization method
  • cast iron
  • chill
  • nondestructive evaluation


Dive into the research topics of 'Evaluation of chill contents in flake graphite cast irons using AC magnetization method'. Together they form a unique fingerprint.

Cite this