The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation
By using different microstructural analysis techniques, the present study explored the influence of the soaking period before deep cryogenic treatment (DCT) on the microstructural characteristics and mechanical properties of Ti–Mo maraging stainless steel. It is found that the effect of the soaking...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423001047 |
| _version_ | 1797858831495069696 |
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| author | Chih-Yuan Chen Zhen-Wei Chen |
| author_facet | Chih-Yuan Chen Zhen-Wei Chen |
| author_sort | Chih-Yuan Chen |
| collection | DOAJ |
| description | By using different microstructural analysis techniques, the present study explored the influence of the soaking period before deep cryogenic treatment (DCT) on the microstructural characteristics and mechanical properties of Ti–Mo maraging stainless steel. It is found that the effect of the soaking periods before DCT on the related metallurgical phenomena is primarily associated with the amount of lattice strain remaining within the matrix before DCT. The corresponding scanning electron microscope (SEM), electron backscattered diffraction (EBSD), and Kernel Average Misorientation (KAM) analyses showed that the lattice strain within the martensite matrix would be relieved after a longer soaking time before DCT. This consequence is also consistent with the results of mechanical tests. The yield strengths (YSs) of tested samples with different soaking periods before DCT exhibited a clear decrement trend as the soaking period increased, thus also resulting in a decrement of the yield ratio. For example, the YS of tested samples with 2-h and 60-day soaking periods before DCT were 663 ± 11 MPa and 489 ± 15 MPa, respectively. On the other hand, regardless of the length of the soaking period, numerous η-Ni3Ti intermetallic compounds were randomly distributed within the matrix after ageing treatment, and they had adopted a specific Burgers orientation relationship, i.e., {011}α′// {0001}η ; <111¯>α′// <112¯0>η, with the martensite matrix. |
| first_indexed | 2024-04-09T21:19:44Z |
| format | Article |
| id | doaj.art-aa7558e93a804972992bb538ce28c7d7 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:44Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-aa7558e93a804972992bb538ce28c7d72023-03-28T06:46:10ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012317121724The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigationChih-Yuan Chen0Zhen-Wei Chen1Corresponding author.; Graduate Institute of Intellectual Property, National Taipei University of Technology, Taipei, 10608, TaiwanGraduate Institute of Intellectual Property, National Taipei University of Technology, Taipei, 10608, TaiwanBy using different microstructural analysis techniques, the present study explored the influence of the soaking period before deep cryogenic treatment (DCT) on the microstructural characteristics and mechanical properties of Ti–Mo maraging stainless steel. It is found that the effect of the soaking periods before DCT on the related metallurgical phenomena is primarily associated with the amount of lattice strain remaining within the matrix before DCT. The corresponding scanning electron microscope (SEM), electron backscattered diffraction (EBSD), and Kernel Average Misorientation (KAM) analyses showed that the lattice strain within the martensite matrix would be relieved after a longer soaking time before DCT. This consequence is also consistent with the results of mechanical tests. The yield strengths (YSs) of tested samples with different soaking periods before DCT exhibited a clear decrement trend as the soaking period increased, thus also resulting in a decrement of the yield ratio. For example, the YS of tested samples with 2-h and 60-day soaking periods before DCT were 663 ± 11 MPa and 489 ± 15 MPa, respectively. On the other hand, regardless of the length of the soaking period, numerous η-Ni3Ti intermetallic compounds were randomly distributed within the matrix after ageing treatment, and they had adopted a specific Burgers orientation relationship, i.e., {011}α′// {0001}η ; <111¯>α′// <112¯0>η, with the martensite matrix.http://www.sciencedirect.com/science/article/pii/S2238785423001047Deep cryogenic treatment (DCT)Ni3TiTransmission electron microscopy (TEM)EBSDPatent |
| spellingShingle | Chih-Yuan Chen Zhen-Wei Chen The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation Journal of Materials Research and Technology Deep cryogenic treatment (DCT) Ni3Ti Transmission electron microscopy (TEM) EBSD Patent |
| title | The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation |
| title_full | The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation |
| title_fullStr | The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation |
| title_full_unstemmed | The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation |
| title_short | The effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of Ti–Mo maraging stainless steel: experimental evidence and critical patents investigation |
| title_sort | effects of room temperature soaking and deep cryogenic treatment on the stress relief phenomenon of ti mo maraging stainless steel experimental evidence and critical patents investigation |
| topic | Deep cryogenic treatment (DCT) Ni3Ti Transmission electron microscopy (TEM) EBSD Patent |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423001047 |
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