High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines
This study performed high-cycle fatigue tests on 316LN stainless steel (SS) for nuclear power application to evaluate its fatigue behavior at both room temperature (RT) and 350 °C. Moreover, its microstructural features and fatigue crack nucleation mechanisms were further studied. It was found that...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425002893 |
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| author | JianNeng Zheng JunChao Hu YueHui Jiang QingYuan Wang Kun Yang |
| author_facet | JianNeng Zheng JunChao Hu YueHui Jiang QingYuan Wang Kun Yang |
| author_sort | JianNeng Zheng |
| collection | DOAJ |
| description | This study performed high-cycle fatigue tests on 316LN stainless steel (SS) for nuclear power application to evaluate its fatigue behavior at both room temperature (RT) and 350 °C. Moreover, its microstructural features and fatigue crack nucleation mechanisms were further studied. It was found that fatigue crack initiation predominantly occurs at the SS specimen surface. At RT, microcrack initiation modes include both transgranular and intragranular mechanisms, with the {100} slip plane contributing to crack initiation alongside the preferential {111} slip plane. At 350 °C, the crack initiation mode shifts primarily to intragranular mechanisms, with active slip planes identified as {111} and {110}. |
| format | Article |
| id | doaj-art-f52ed506728b4f8e8f5c5574b18cc593 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-f52ed506728b4f8e8f5c5574b18cc5932025-02-11T04:34:57ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013532813292High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelinesJianNeng Zheng0JunChao Hu1YueHui Jiang2QingYuan Wang3Kun Yang4National Engineering Research Center for Advanced Manufacturing Technology and Equipment of Heavy Castings and Forgings, Erzhong (Deyang) Heavy Equipment Co., Ltd., Deyang, 618000, ChinaFailure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, ChinaSchool of Mechanical Engineering / Institute for Advanced Study, Chengdu University, Chengdu 610106, ChinaFailure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China; School of Mechanical Engineering / Institute for Advanced Study, Chengdu University, Chengdu 610106, China; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China; Corresponding author. Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China.Failure Mechanics and Engineering Disaster Prevention Key Laboratory of Sichuan Province, Sichuan University, Chengdu, 610065, China; School of Mechanical Engineering / Institute for Advanced Study, Chengdu University, Chengdu 610106, China; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China; Corresponding author. Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education, Chengdu, 610065, China.This study performed high-cycle fatigue tests on 316LN stainless steel (SS) for nuclear power application to evaluate its fatigue behavior at both room temperature (RT) and 350 °C. Moreover, its microstructural features and fatigue crack nucleation mechanisms were further studied. It was found that fatigue crack initiation predominantly occurs at the SS specimen surface. At RT, microcrack initiation modes include both transgranular and intragranular mechanisms, with the {100} slip plane contributing to crack initiation alongside the preferential {111} slip plane. At 350 °C, the crack initiation mode shifts primarily to intragranular mechanisms, with active slip planes identified as {111} and {110}.http://www.sciencedirect.com/science/article/pii/S2238785425002893316LN austenitic stainless steelHigh temperatureTensile behaviorHigh cycle fatigue (HCF) propertyFatigue crack initiation mechanism |
| spellingShingle | JianNeng Zheng JunChao Hu YueHui Jiang QingYuan Wang Kun Yang High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines Journal of Materials Research and Technology 316LN austenitic stainless steel High temperature Tensile behavior High cycle fatigue (HCF) property Fatigue crack initiation mechanism |
| title | High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines |
| title_full | High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines |
| title_fullStr | High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines |
| title_full_unstemmed | High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines |
| title_short | High temperature effects on fatigue performance and crack initiation mechanisms of 316LN stainless steel for nuclear power pipelines |
| title_sort | high temperature effects on fatigue performance and crack initiation mechanisms of 316ln stainless steel for nuclear power pipelines |
| topic | 316LN austenitic stainless steel High temperature Tensile behavior High cycle fatigue (HCF) property Fatigue crack initiation mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425002893 |
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