Hardness of H13 Tool Steel After Non-isothermal Tempering

E. Nelson, A. Kohli, D. R. Poirier

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


A direct method to calculate the tempering response of a tool steel (H13) that exhibits secondary hardening is presented. Based on the traditional method of presenting tempering response in terms of isothermal tempering, we show that the tempering response for a steel undergoing a non-isothermal tempering schedule can be predicted. Experiments comprised (1) isothermal tempering, (2) non-isothermal tempering pertaining to a relatively slow heating to process-temperature and (3) fast-heating cycles that are relevant to tempering by induction heating. After establishing the tempering response of the steel under simple isothermal conditions, the tempering response can be applied to non-isothermal tempering by using a numerical method to calculate the tempering parameter. Calculated results are verified by the experiments.

Original languageEnglish (US)
Pages (from-to)2766-2771
Number of pages6
JournalJournal of Materials Engineering and Performance
Issue number6
StatePublished - Jun 1 2018


  • non-isothermal tempering
  • secondary hardening
  • tool steel

ASJC Scopus subject areas

  • General Materials Science
  • Mechanics of Materials
  • Mechanical Engineering


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