Phase transformation induced by high nitrogen content solid solution in the martensitic stainless steels

Abdelrahman Farghali, Tatsuhiko Aizawa

Research output: Contribution to journalArticle

  • 4 Citations

Abstract

A high density plasma nitriding experiment was performed on a circular disk specimen of martensitic stainless steel at the temperature of 673 K for 14.4 ks. The nitrided thickness was 80 μm in depth from the surface with a high surface nitrogen concentration of 31 at%. Scanning electron microscope (SEM), energy dispersive spectroscopy (EDX) and, electron backscattering diffraction (EBSD) were used to analyze the microstructure, the nitrogen content distribution, the phase formation, the grain size, and the straining in the specimen. Phase transformation from martensitic to austenitic phases took place together with high straining as well as grain size refinement.

LanguageEnglish
Pages697-700
Number of pages4
JournalMaterials Transactions
Volume58
Issue number4
DOIs
StatePublished - 2017

Fingerprint

martensitic stainless steels
Martensitic stainless steel
phase transformations
Energy dispersive spectroscopy
Solid solutions
solid solutions
Nitrogen
grain size
Phase transitions
nitrogen
Plasma density
nitriding
Nitriding
Backscattering
plasma density
backscattering
Electron microscopes
electron microscopes
Diffraction
Scanning

Keywords

  • Low-temperature plasma nitriding
  • Martensitic stainless steel
  • Phase transformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Phase transformation induced by high nitrogen content solid solution in the martensitic stainless steels. / Farghali, Abdelrahman; Aizawa, Tatsuhiko.

In: Materials Transactions, Vol. 58, No. 4, 2017, p. 697-700.

Research output: Contribution to journalArticle

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