열처리공학회지 (Journal of the Korean Society for Heat Treatment)

  • 제34권3호
  • /
  • Pages.116-121
  • /
  • 2021
  • /
  • 1225-1070(pISSN)
  • /
  • 2508-4046(eISSN)
한국열처리공학회 (The Korean Society for Heat Treatment)
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Fe-20Mn-12Cr-3Ni-3Si 합금의 인장성질에 미치는 냉간가공의 영향

Effect of Cold Working on the Tensile Properties of Fe-20Mn-12Cr-3Ni-3Si Alloy

  • 정종민 (한국폴리텍대학 울산캠퍼스 산업설비자동화과) ;
  • 김권후 (부경대학교 금속공학과)
  • Jung, Jong-Min (Department of Industrial Facility Automation, Ulsan Campus of Korea Polytechnic) ;
  • Kim, Kwon-Hoo (Department of Metallurgical Engineering, Pukyong National University)
  • 투고 : 2021.04.22
  • 심사 : 2021.05.06
  • 발행 : 2021.05.30
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초록

This study was carried out to investigate the effect of transformation induced martensite on the tensile properties of Fe-20Mn-12Cr-3Ni-3Si alloy. α' and ε-martensite were formed by cold rolling, and these martensite were formed with according to the specific direction, surface relief and partially intersection. With an increasing degree of cold rolling, amount of α'-martensite was slowly increased, whereas amount of ε-martensite was rapidly increased. Volume fraction of ε-martensite formed by cold working was large than α'-martensite. Tensile strength was rapidly increase and elongation was rapidly decreased with an increasing of degree of cold rolling. This means that tensile strengh and elongation was greatly influenced by the volume fraction of ε-martensite formed by cold rolling then α'-martensite.

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