Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Effects of Mo on the Mechanical Properties of Ductile Cast Iron with Cu Austempered at 380℃

Cu가 함유된 구상흑연주철의 380℃에서 오스템퍼링 시 Mo이 기계적 특성에 미치는 영향

  • Kim, G.Y. (Dept. of Advanced Material Application, Daegu Campus of Korea Polytechnic)
  • 김기엽 (한국폴리텍대학 대구캠퍼스 신소재응용과)
  • Received : 2012.07.04
  • Accepted : 2013.07.19
  • Published : 2013.09.30
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Abstract

In this study, we investigated effect of Mo addition on mechanical properties of Cu added ADI. Ductile cast iron specimens were austenitized at $900^{\circ}C$ for 150 min and then austempered at $380^{\circ}C$ for the various time periods from 15 min to 480 min. Mo added ADI had a higher volume fraction of retained austenite, and the volume fraction of retained austenite was determined by XRD analysis. As decreasing volume fraction of retained austenite, the elongation was also decreased as expected. But the UTS and yield strength were not decreased.

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References

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