Systems design of high performance stainless steels II. Prototype characterization

C. E. Campbell*, Gregory B Olson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Within the framework of a systems approach, the design of a high performance stainless steel integrated processing/structure/property/performance relations with mechanistic computational models. Using multicomponent thermodynamic and diffusion software platforms, the models were integrated to design a carburizable, secondary-hardening, martensitic stainless steel for advanced gear and bearing applications. Prototype evaluation confirmed the predicted martensitic transformation temperature and the desired carburizing and tempering responses, achieving a case hardness of Rc 64 in the secondary-hardened condition without case primary carbides. Comparison with a commercial carburizing stainless steel demonstrated the advantage of avoiding primary carbides to resist quench cracking associated with a martensitic start temperature gradient reversal. Based on anodic polarization measurements and salt-spray testing, the prototype composition exhibited superior corrosion resistance in comparison to the 440C stainless bearing steel, which has a significantly higher alloy Cr concentration.

Original languageEnglish (US)
Pages (from-to)171-194
Number of pages24
JournalJournal of Computer-Aided Materials Design
Volume7
Issue number3
DOIs
StatePublished - Dec 1 2000

Keywords

  • Anodic polarization
  • Carburizing
  • Dilatometry
  • Fracture-toughness
  • Materials design
  • Secondary-hardening

ASJC Scopus subject areas

  • Materials Science(all)
  • Computer Science Applications
  • Computational Theory and Mathematics

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