pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (21권3호 198-203)
Evaluation of Nodularity in Ductile Cast Iron by Image Analysis
화상분석에 의한 구상흑연주철의 구상화율 판정
Dae-Heon Joo, Joo-Seung Park*, Myung-Ho Kiml
Inha University, *Agency for Technology and Standard
In determining properties of ductile cast iron, it is well known that nodularity plays a significant role. Therefore, the national and/or international standards for ductile cast iron such as KS, ISO, ASTM and JIS have specified some methods for evaluating it. However, most of standards have not recommended the methods using image analyzer which is known as an objective analyzing tool for evaluating microstructure. In this study, a reliable method for evaluating nodularity by image analyzing method was proposed, and the result was compared with that from the common counting method proposed in KS D 4302-1999. It was found that there was a reasonable relationship in nodularities measured by these two methods.
Ductile Cast Iron, Nodularity, Image Analysis, Korean Industrial Standard
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