Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes
Formation of regularities of the nanometric oxide precipitates and defect microstructure in vanadium-based low activation alloys V–Cr–Zr–(C,N,O) and V–Cr–W–Zr–(C,N,O) as a function of the regimes of their thermochemical treatment was investigated. Several methods of internal oxidation which provide...
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doaj-39df9837134d4e928b09ce5cbe5c89322020-11-25T00:12:31ZengElsevierNuclear Materials and Energy2352-17912015-07-013C172110.1016/j.nme.2015.04.001Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modesV.M. Chernov0M.M. Potapenko1V.A. Drobyshev2M.V. Kravtsova3A.N. Tyumentsev4S.V. Ovchinnikov5I.A. Ditenberg6Y.P. Pinzhin7A.D. Korotaev8I.V. Smirnov9K.V. Grinyaev10I.I. Sukhanov11A.A. Bochvar High Technology Research Institute of Inorganic Materials, 123098 Moscow, RussiaA.A. Bochvar High Technology Research Institute of Inorganic Materials, 123098 Moscow, RussiaA.A. Bochvar High Technology Research Institute of Inorganic Materials, 123098 Moscow, RussiaA.A. Bochvar High Technology Research Institute of Inorganic Materials, 123098 Moscow, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaV.D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University, 630050 Tomsk, RussiaInstitute of Strength Physics and Materials Science, Siberian Branch of the Russian Academy of Sciences, 634021 Tomsk, RussiaTomsk State University, 634050 Tomsk, RussiaFormation of regularities of the nanometric oxide precipitates and defect microstructure in vanadium-based low activation alloys V–Cr–Zr–(C,N,O) and V–Cr–W–Zr–(C,N,O) as a function of the regimes of their thermochemical treatment was investigated. Several methods of internal oxidation which provide formation of the nanosized ZrO2 particles of controllable dispersion, ensure the nanometric size of the heterophase structure to be maintained up to the temperatures as high as 1300–1400 °С, and allow the recrystallization temperature to be increased up to ≥1400 °С were proposed. Formation of such microstructure contributes to dispersion- and substructural hardening and results in more than twofold increase in the yield stress of these alloys both at room and elevated (800 °С) temperatures, compared to the conventional thermo-mechanical treatment.http://www.sciencedirect.com/science/article/pii/S2352179115200130Vanadium alloysV–Me(Cr,W)–Zr alloysThermochemical treatmentInternal oxidationThermomechanical treatmentElectron microscopyMicrostructureDispersion hardening |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
V.M. Chernov M.M. Potapenko V.A. Drobyshev M.V. Kravtsova A.N. Tyumentsev S.V. Ovchinnikov I.A. Ditenberg Y.P. Pinzhin A.D. Korotaev I.V. Smirnov K.V. Grinyaev I.I. Sukhanov |
spellingShingle |
V.M. Chernov M.M. Potapenko V.A. Drobyshev M.V. Kravtsova A.N. Tyumentsev S.V. Ovchinnikov I.A. Ditenberg Y.P. Pinzhin A.D. Korotaev I.V. Smirnov K.V. Grinyaev I.I. Sukhanov Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes Nuclear Materials and Energy Vanadium alloys V–Me(Cr,W)–Zr alloys Thermochemical treatment Internal oxidation Thermomechanical treatment Electron microscopy Microstructure Dispersion hardening |
author_facet |
V.M. Chernov M.M. Potapenko V.A. Drobyshev M.V. Kravtsova A.N. Tyumentsev S.V. Ovchinnikov I.A. Ditenberg Y.P. Pinzhin A.D. Korotaev I.V. Smirnov K.V. Grinyaev I.I. Sukhanov |
author_sort |
V.M. Chernov |
title |
Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes |
title_short |
Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes |
title_full |
Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes |
title_fullStr |
Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes |
title_full_unstemmed |
Microstructure and mechanical properties of V–Me(Cr,W)–Zr alloys as a function of their chemical–thermal treatment modes |
title_sort |
microstructure and mechanical properties of v–me(cr,w)–zr alloys as a function of their chemical–thermal treatment modes |
publisher |
Elsevier |
series |
Nuclear Materials and Energy |
issn |
2352-1791 |
publishDate |
2015-07-01 |
description |
Formation of regularities of the nanometric oxide precipitates and defect microstructure in vanadium-based low activation alloys V–Cr–Zr–(C,N,O) and V–Cr–W–Zr–(C,N,O) as a function of the regimes of their thermochemical treatment was investigated. Several methods of internal oxidation which provide formation of the nanosized ZrO2 particles of controllable dispersion, ensure the nanometric size of the heterophase structure to be maintained up to the temperatures as high as 1300–1400 °С, and allow the recrystallization temperature to be increased up to ≥1400 °С were proposed. Formation of such microstructure contributes to dispersion- and substructural hardening and results in more than twofold increase in the yield stress of these alloys both at room and elevated (800 °С) temperatures, compared to the conventional thermo-mechanical treatment. |
topic |
Vanadium alloys V–Me(Cr,W)–Zr alloys Thermochemical treatment Internal oxidation Thermomechanical treatment Electron microscopy Microstructure Dispersion hardening |
url |
http://www.sciencedirect.com/science/article/pii/S2352179115200130 |
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