Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure
Enhancement of wear resistance of components used in fast reactors is necessary for long service life of the components. Plasma nitriding is a promising surface modification technology to impart high hardness and improved wear resistance of various steel components. This study discusses the characte...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-04-01
|
| Series: | Nuclear Engineering and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1738573322005861 |
| _version_ | 1797839033256116224 |
|---|---|
| author | Akash Singh R. Thirumurugesan S. Krishnakumar Revati Rani S. Chandramouli P. Parameswaran R. Mythili |
| author_facet | Akash Singh R. Thirumurugesan S. Krishnakumar Revati Rani S. Chandramouli P. Parameswaran R. Mythili |
| author_sort | Akash Singh |
| collection | DOAJ |
| description | Enhancement of wear resistance of components used in fast reactors is necessary for long service life of the components. Plasma nitriding is a promising surface modification technology to impart high hardness and improved wear resistance of various steel components. This study discusses the characterization of chrome nitrided SS316L casing ring used in secondary sodium pump of fast breeder reactor and its stability under long term sodium exposure. Microstructural and hardness analysis showed that stress relieved component could be chrome nitrided successfully to a thickness of about 100 μm. Assessment of in-sodium performance of the chrome nitrided casing ring subjected to long term exposure up to 5000h at 550°C, showed retention of chrome nitrided layer with a case depth almost similar to that before sodium exposure. A slight decrease in the hardness was observed due to prolonged high temperature sodium exposure. Tribological studies indicate very low coefficient of friction indicating the retention of good wear resistance of the coating even after long term sodium exposure. |
| first_indexed | 2024-04-09T15:51:43Z |
| format | Article |
| id | doaj.art-28cda9590c55404e85d178514b3dfe6a |
| institution | Directory Open Access Journal |
| issn | 1738-5733 |
| language | English |
| last_indexed | 2024-04-09T15:51:43Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Nuclear Engineering and Technology |
| spelling | doaj.art-28cda9590c55404e85d178514b3dfe6a2023-04-26T05:56:22ZengElsevierNuclear Engineering and Technology1738-57332023-04-0155414681475Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposureAkash Singh0R. Thirumurugesan1S. Krishnakumar2Revati Rani3S. Chandramouli4P. Parameswaran5R. Mythili6Metallurgy & Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India; Corresponding author.Metallurgy & Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, IndiaReactor Design and Technology Group, Indira Gandhi Centre for Atomic Research Centre, Kalpakkam, 603102, IndiaMaterials Science Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, IndiaReactor Design and Technology Group, Indira Gandhi Centre for Atomic Research Centre, Kalpakkam, 603102, IndiaFormerly with Metallurgy & Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, IndiaMetallurgy & Materials Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, IndiaEnhancement of wear resistance of components used in fast reactors is necessary for long service life of the components. Plasma nitriding is a promising surface modification technology to impart high hardness and improved wear resistance of various steel components. This study discusses the characterization of chrome nitrided SS316L casing ring used in secondary sodium pump of fast breeder reactor and its stability under long term sodium exposure. Microstructural and hardness analysis showed that stress relieved component could be chrome nitrided successfully to a thickness of about 100 μm. Assessment of in-sodium performance of the chrome nitrided casing ring subjected to long term exposure up to 5000h at 550°C, showed retention of chrome nitrided layer with a case depth almost similar to that before sodium exposure. A slight decrease in the hardness was observed due to prolonged high temperature sodium exposure. Tribological studies indicate very low coefficient of friction indicating the retention of good wear resistance of the coating even after long term sodium exposure.http://www.sciencedirect.com/science/article/pii/S1738573322005861Plasma nitridingHardnessMicrostructureStatic sodiumSS 316LWear resistance |
| spellingShingle | Akash Singh R. Thirumurugesan S. Krishnakumar Revati Rani S. Chandramouli P. Parameswaran R. Mythili Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure Nuclear Engineering and Technology Plasma nitriding Hardness Microstructure Static sodium SS 316L Wear resistance |
| title | Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure |
| title_full | Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure |
| title_fullStr | Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure |
| title_full_unstemmed | Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure |
| title_short | Performance evaluation of plasma nitrided 316L stainless steel during long term high temperature sodium exposure |
| title_sort | performance evaluation of plasma nitrided 316l stainless steel during long term high temperature sodium exposure |
| topic | Plasma nitriding Hardness Microstructure Static sodium SS 316L Wear resistance |
| url | http://www.sciencedirect.com/science/article/pii/S1738573322005861 |
| work_keys_str_mv | AT akashsingh performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT rthirumurugesan performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT skrishnakumar performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT revatirani performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT schandramouli performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT pparameswaran performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure AT rmythili performanceevaluationofplasmanitrided316lstainlesssteelduringlongtermhightemperaturesodiumexposure |