Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules
This paper brings an innovative processing route of manganese deep-sea nodules, which results in completely new grades of alloys. Deep-sea nodules were processed by aluminothermic method without the extraction of individual elements, producing complexly alloyed manganese-based “natural alloys”. Thre...
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MDPI AG
2021-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/3/561 |
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| author | Pavel Novák Nguyen Hong Vu Lucie Šulcová Jaromír Kopeček František Laufek Alisa Tsepeleva Petr Dvořák Alena Michalcová |
| author_facet | Pavel Novák Nguyen Hong Vu Lucie Šulcová Jaromír Kopeček František Laufek Alisa Tsepeleva Petr Dvořák Alena Michalcová |
| author_sort | Pavel Novák |
| collection | DOAJ |
| description | This paper brings an innovative processing route of manganese deep-sea nodules, which results in completely new grades of alloys. Deep-sea nodules were processed by aluminothermic method without the extraction of individual elements, producing complexly alloyed manganese-based “natural alloys”. Three levels of the amount of aluminum were used for the aluminothermic reduction, and hence the alloys differ strongly in the amount of aluminum, which has a significant effect on their phase composition. The alloys have very high wear resistance, comparable with tool steel. The disadvantage of low-aluminum alloy is the susceptibility to local thermal cracking during friction, which occurs especially in the case of a dry sliding wear against the static partner with low thermal conductivity. |
| first_indexed | 2024-03-09T03:43:50Z |
| format | Article |
| id | doaj.art-cd4729f9736a4535b676f4316bd91a8b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T03:43:50Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-cd4729f9736a4535b676f4316bd91a8b2023-12-03T14:37:18ZengMDPI AGMaterials1996-19442021-01-0114356110.3390/ma14030561Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea NodulesPavel Novák0Nguyen Hong Vu1Lucie Šulcová2Jaromír Kopeček3František Laufek4Alisa Tsepeleva5Petr Dvořák6Alena Michalcová7Department of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicInstitute of Physics of the ASCR, v. v. i., Na Slovance 2, 182 21 Prague 8, Czech RepublicCzech Geological Survey, Geologická 6, 152 00 Prague 5, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicDepartment of Metals and Corrosion Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague 6, Czech RepublicThis paper brings an innovative processing route of manganese deep-sea nodules, which results in completely new grades of alloys. Deep-sea nodules were processed by aluminothermic method without the extraction of individual elements, producing complexly alloyed manganese-based “natural alloys”. Three levels of the amount of aluminum were used for the aluminothermic reduction, and hence the alloys differ strongly in the amount of aluminum, which has a significant effect on their phase composition. The alloys have very high wear resistance, comparable with tool steel. The disadvantage of low-aluminum alloy is the susceptibility to local thermal cracking during friction, which occurs especially in the case of a dry sliding wear against the static partner with low thermal conductivity.https://www.mdpi.com/1996-1944/14/3/561manganese alloydeep-sea nodulesaluminothermy |
| spellingShingle | Pavel Novák Nguyen Hong Vu Lucie Šulcová Jaromír Kopeček František Laufek Alisa Tsepeleva Petr Dvořák Alena Michalcová Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules Materials manganese alloy deep-sea nodules aluminothermy |
| title | Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules |
| title_full | Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules |
| title_fullStr | Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules |
| title_full_unstemmed | Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules |
| title_short | Structure and Properties of Alloys Obtained by Aluminothermic Reduction of Deep-Sea Nodules |
| title_sort | structure and properties of alloys obtained by aluminothermic reduction of deep sea nodules |
| topic | manganese alloy deep-sea nodules aluminothermy |
| url | https://www.mdpi.com/1996-1944/14/3/561 |
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