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Determination of Brinell Hardness through Instrumented Indentation Test without Observation of Residual Indent

계장화압입시험법을 이용한 비압흔관찰 브리넬 경도 평가

  • 김성훈 (서울대학교 대학원 재료공학부) ;
  • 최열 (서울대학교 대학원 재료공학부) ;
  • 권동일 (서울대학교 재료공학부)
  • Published : 2004.05.01

Abstract

Hardness test is performed for determination of the other properties, such as strength, wear resistance and deformation resistance, as well as hardness itself. And it is performed for prediction of residual lifetime by analysis of hardness reduction or hardness ratio. However, hardness test has limitation that observation of residual indent is needed for determination of hardness value, and that is the reason for not to be widely used in industrial field. Therefore, in this study, we performed researches to obtain Brinell hardness value from quantitative numerical formula by analysing relationship between indentation depths from indentation load-depth curve and mechanical properties such as work hardening exponent, yield strength and elastic modulus.

References

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