Magnetic nondestructive evaluation of thermally degraded 2.25Cr-1Mo steel

Jai Won Byeon, S. I. Kwun

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

Aging was performed to understand the microstructural degradation in 2.25Cr-1Mo steel. Microstructural parameters (mean equivalent carbide size, number of carbides per unit area), mechanical properties (UTS, Vickers hardness) and magnetic properties (coercivity, remanence) were measured to investigate the relationship among these parameters. The magnetic coercivity and remanence were observed to decrease rapidly in the initial 1000 h of aging time and then decrease slowly thereafter. Linear correlations between mechanical and magnetic properties were found.

Original languageEnglish
Pages (from-to)94-98
Number of pages5
JournalMaterials Letters
Volume58
Issue number1-2
DOIs
StatePublished - Jan 2004

Keywords

  • Coercivity
  • Mechanical properties
  • Microstructure
  • Nondestructive evaluation
  • Remanence
  • Thermal degradation

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