Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91
Grade 91 (9Cr-1Mo) steel was subjected to various heat treatments and then to high-pressure torsion (HPT) at different temperatures. Its microstructure was studied using transmission electron microscopy (TEM) and X-ray diffraction (XRD). Effects of the tempering temperature and the HPT temperature o...
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MDPI AG
2018-04-01
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| Series: | Materials |
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| Online Access: | http://www.mdpi.com/1996-1944/11/4/627 |
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doaj-450a613d5edb4d20beb0cc64a31b1db12020-11-25T00:10:17ZengMDPI AGMaterials1996-19442018-04-0111462710.3390/ma11040627ma11040627Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91Artur Ganeev0Marina Nikitina1Vil Sitdikov2Rinat Islamgaliev3Andrew Hoffman4Haiming Wen5Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450008, RussiaInstitute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450008, RussiaInstitute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450008, RussiaInstitute of Physics of Advanced Materials, Ufa State Aviation Technical University, Ufa 450008, RussiaDepartment of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USADepartment of Mining and Nuclear Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USAGrade 91 (9Cr-1Mo) steel was subjected to various heat treatments and then to high-pressure torsion (HPT) at different temperatures. Its microstructure was studied using transmission electron microscopy (TEM) and X-ray diffraction (XRD). Effects of the tempering temperature and the HPT temperature on the microstructural features and microhardness in the ultrafine-grained (UFG) Grade 91 steel were researched. The study of the UFG structure formation takes into account two different microstructures observed: before HPT in both samples containing martensite and in fully ferritic samples.http://www.mdpi.com/1996-1944/11/4/627ferritic/martensitic steelhigh-pressure torsionultrafine-grained structure |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Artur Ganeev Marina Nikitina Vil Sitdikov Rinat Islamgaliev Andrew Hoffman Haiming Wen |
| spellingShingle |
Artur Ganeev Marina Nikitina Vil Sitdikov Rinat Islamgaliev Andrew Hoffman Haiming Wen Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 Materials ferritic/martensitic steel high-pressure torsion ultrafine-grained structure |
| author_facet |
Artur Ganeev Marina Nikitina Vil Sitdikov Rinat Islamgaliev Andrew Hoffman Haiming Wen |
| author_sort |
Artur Ganeev |
| title |
Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 |
| title_short |
Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 |
| title_full |
Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 |
| title_fullStr |
Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 |
| title_full_unstemmed |
Effects of the Tempering and High-Pressure Torsion Temperatures on Microstructure of Ferritic/Martensitic Steel Grade 91 |
| title_sort |
effects of the tempering and high-pressure torsion temperatures on microstructure of ferritic/martensitic steel grade 91 |
| publisher |
MDPI AG |
| series |
Materials |
| issn |
1996-1944 |
| publishDate |
2018-04-01 |
| description |
Grade 91 (9Cr-1Mo) steel was subjected to various heat treatments and then to high-pressure torsion (HPT) at different temperatures. Its microstructure was studied using transmission electron microscopy (TEM) and X-ray diffraction (XRD). Effects of the tempering temperature and the HPT temperature on the microstructural features and microhardness in the ultrafine-grained (UFG) Grade 91 steel were researched. The study of the UFG structure formation takes into account two different microstructures observed: before HPT in both samples containing martensite and in fully ferritic samples. |
| topic |
ferritic/martensitic steel high-pressure torsion ultrafine-grained structure |
| url |
http://www.mdpi.com/1996-1944/11/4/627 |
| work_keys_str_mv |
AT arturganeev effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 AT marinanikitina effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 AT vilsitdikov effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 AT rinatislamgaliev effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 AT andrewhoffman effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 AT haimingwen effectsofthetemperingandhighpressuretorsiontemperaturesonmicrostructureofferriticmartensiticsteelgrade91 |
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