MECHANICAL ALLOYING OF HIGH NITROGEN STAINLESS STEEL POWDERS WITH METAL NITRIDES AND NITROGEN-CONTAINING FERROALLOY AS A NITROGEN SOURCE

1 RAZUMOV Nikolay
Co-authors:
1 MAKHMU Tagir 1 POPOVICH Anatoliy 1 GYULIKHANDANOV Evgeniy 1 KIM Artem 1 SHAMSHURIN Alexey
Institution:
1 Peter the Great St, Petersburg Polytechnic University, St. Petersburg, Russian Federation, n.razumovonti@onti.spbstu.ru
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
798-803
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
41 views / 8 downloads
Abstract

16Cr - 2Ni - Mn - Mo - xN (wt%) stainless steel powders were synthesized by mechanical alloying (MA) of elemental powders, metal nitride (MeN) powders and nitrogen-containing ferroalloy (FeMeN) powders at argon atmosphere. The microstructural and phase evolution of the powders at different times of alloying and microstructure were studied. The X-Ray diffraction (XRD) and Scanning Electron Microscopy (SEM) analysis showed that chemical homogeneity improves with increasing alloying time and decreasing nitrides powder content. The phase composition changes during the MA up to 30 ks processing time showed dissolving of alloying elements and formation of α-phase solid solution for the sample with low nitrogen contents. Samples with high nitrogen contents have a nitrides inclusion, which partially dissolves with increasing processing time.

Keywords: High nitrogen stainless steels, mechanical alloying, microstructure, phase evolution
Scroll to Top