Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Effect of Tempering Temperatures on Tensile Properties in a Low Carbon Steel

저탄소강에서 템퍼링 온도가 인장변형에 미치는 영향

  • 이영범 (국민대학교 신소재공학부) ;
  • 김대성 (국민대학교 신소재공학부) ;
  • 남원종 (국민대학교 신소재공학부)
  • Published : 2003.12.01
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Abstract

The effect of tempering temperatures on microstructures and mechanical properties was studied in a low carbon steel. The disappearance of continuous yielding and the formation of an extended region in engineering stress-strain curves at tempering temperatures ranging from 673 to 873K was caused by the reduction of mobile dislocations during tempering and dynamic recovery during tensile deformation. In addition, the occurrence of discontinuous yielding in the sample treated at the tempering temperatures above 923K was attributed to the formation of new strain-free polygonal ferrite grain.

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References

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