General description of martensite transformation curves – a case for bainite

ABSTRACT

This work describes the results of validation trials of a formal model for the martensite transformation curve in steels. The model is based on microstructural evolution and accepted aspects of athermal, isothermal, mechanical-induced as well as magnetic-assisted martensite transformation modes. The model is operational for martensite and applicable to other intragrain transformations. The paper also explores the extension of the formalism to bainite.

KEYWORDS:

• Martensite
• Bainite
• Transformation
• Microstructure
• Kinetics
• Autocatalysis
• Models
• Steels

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001. The authors are also grateful to Conselho Nacional de Desenvolvimento Científico e Tecnológico, CNPQ, and Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro, FAPERJ, for the financial support.