한국주조공학회지 (Journal of Korea Foundry Society)

  • 제35권4호
  • /
  • Pages.88-98
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  • 2015
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  • 1598-706X(pISSN)
  • /
  • 2288-8381(eISSN)
한국주조공학회 (Korea Foundry Society)
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C 함량이 다른 A487 주강품의 열처리 조건에 따른 기계적 및 부식 특성

Effect of Quenching and Tempering Temperatures on Mechanical Properties of A487 Cast with Different C Contents

  • Jung, Woo-Jin (Dept of Met. and Mat. Eng., ReCAPT, Gyeongsang National University) ;
  • Jeong, Dae-Ho (Dept of Met. and Mat. Eng., ReCAPT, Gyeongsang National University) ;
  • Lee, Young-Cheol (Dongnam Regional Divison, Korea Institute of Industrial Technology) ;
  • Lee, Jae-Hyun (Dept. of Mat. Sci. and Eng., Changwon National University) ;
  • Kim, Sang-Shik (Dept of Met. and Mat. Eng., ReCAPT, Gyeongsang National University)
  • 투고 : 2015.04.07
  • 심사 : 2015.07.16
  • 발행 : 2015.08.31
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초록

The effects of quenching and tempering temperatures on the tensile, impact and corrosion properties of A487 alloy cast with different C contents of 0.16, 0.19 to 0.23 wt.% were examined. The impact tests were conducted at $25^{\circ}C$ and $-60^{\circ}C$ and the immersion test was performed using 3.5% NaCl solution for 14 days. The quenching temperature affected the mechanical properties of A487 alloy cast, while the magnitude of change varied depending on the C content. The increase in tempering temperature showed the typical trend of decreasing tensile strength and increasing impact properties. The change in quenching and tempering temperature in this study did not affect the corrosion properties of A487 alloy significantly. The change in mechanical and corrosion properties of A487 with different C contents was discussed based on the microstructural and fractographic observation.

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참고문헌

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