Microstructure and mechanical properties of high-nitrogen 16Cr-2Ni-Mn-Mo-xN stainless steel obtained by powder metallurgy techniques
| Autor: | Vera Popovich, Artem Kim, Anatoliy Popovich, Nikolay Razumov, Sergey Ganin, Tagir Makhmutov, Alexey Shamshurin |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Metallurgy Sintering Spark plasma sintering 02 engineering and technology Nitride 021001 nanoscience & nanotechnology Microstructure 01 natural sciences Indentation hardness chemistry.chemical_compound chemistry Powder metallurgy 0103 physical sciences Ultimate tensile strength 0210 nano-technology Chromium nitride |
| Zdroj: | Materials Today: Proceedings. 30:768-772 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.01.564 |
| Popis: | 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 α and γ-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. |
| Databáze: | OpenAIRE |
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