Microstructure and mechanical properties of high-nitrogen 16Cr-2Ni-Mn-Mo-xN stainless steel obtained by powder metallurgy techniques

Tagir Makhmutov*, Nikolay Razumov, Artem Kim, Sergey Ganin, Alexey Shamshurin, Anatoliy Popovich, Vera Popovich

*Corresponding author for this work

Research output: Contribution to journalConference articleScientificpeer-review

1 Citation (Scopus)

Abstract

16Cr-2Ni-Mn-Mo-xN (wt%) stainless steel powders were synthesized by mechanical alloying from elemental metal and chromium nitride (Cr2N) powders. Compaction of resulting powders was carried out using spark plasma sintering technology. The X-Ray diffraction and Scanning Electron Microscopy analysis showed that chemical homogeneity improves with increasing alloying time and decreasing nitrides powder content. Analysis of sintering samples showed the formation of a and ?-phase solid solution with nitrogen-containing samples containing undissolved nitrogen inclusions. The results of high-temperature tensile tests showed an increase of tensile stress for the sample containing 50% Cr2N. Furthermore, the microhardness was increased with an increase in the amount of Cr2N.

Original languageEnglish
Pages (from-to)768-772
JournalMaterials Today: Proceedings
Volume30
Issue number3
DOIs
Publication statusPublished - 2020
Event2019 International Scientific Conference on Materials Science: Composites, Alloys and Materials Chemistry, MS-CAMC 2019 - Saint Petersburg, Russian Federation
Duration: 20 Nov 201921 Nov 2019

Keywords

  • High nitrogen stainless steels
  • Mechanical alloying
  • Mechanical properties
  • Microstructure
  • Spark plasma sintering

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