Journal of Materials Science

, Volume 41, Issue 4, pp 1081–1087 | Cite as

Evaluation of material degradation of 1Cr-1Mo-0.25V steel by ball indentation and resistivity

  • Chang-Sung Seok
  • Jae-Mean Koo


In this study, test materials with several different degradation levels were prepared by isothermal aging heat treatment at 630 °C up to 1820 h. Tensile and fracture tests were performed and those were compared with BI tests and DC potential drop method. These results show that normalized Brinell hardness agrees well with normalized tensile strength at the viewpoint of material degradation and the tensile strength and fracture toughness of degraded material can be determined by Brinell hardness or resistivity.


Tensile Strength Fracture Toughness Potential Drop Drop Method Fracture Test 
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Copyright information

© Springer Science + Business Media, Inc 2006

Authors and Affiliations

  • Chang-Sung Seok
    • 1
  • Jae-Mean Koo
    • 1
  1. 1.School of Mechanical EngineeringSungkyunkwan UniversityKyonggi-doKorea

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