Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel
The influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance was investigated in high-strength steel. With ballistic test at a bullet impact velocity of about 810 m/s, the steel plate displayed the different ballistic performance, forming partially pen...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2025.1545242/full |
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| author | Keke Tong Haoran Sun Luxing Duan Xiurong Zuo |
| author_facet | Keke Tong Haoran Sun Luxing Duan Xiurong Zuo |
| author_sort | Keke Tong |
| collection | DOAJ |
| description | The influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance was investigated in high-strength steel. With ballistic test at a bullet impact velocity of about 810 m/s, the steel plate displayed the different ballistic performance, forming partially penetrated crater A and the completely penetrated crater B, despite the craters A and B were close together with only about 100 mm. The zone near crater A displayed excellent strength, plasticity and deformability than that near crater B. The segregation bands and TiN inclusions in steel plate originated from central segregation in continuous casting slabs. The Adiabatic shear bands (ASBs) with total length of 14,848 μm around crater B was more serious than that with total length of 6,239 μm around crater A, attributed to the low n value and strain hardening rate in completely penetrated crater region. Cracks parallel to the penetration direction only occurred around the crater B. Cracks also formed along the interfaces of ASB and matrix. The inhomogeneous deformation around ASBs resulted in stress concentration, especially at the interface between the matrix and the segregation band, making the long crack initiation and propagation under load of impact. |
| format | Article |
| id | doaj-art-5650212bf91043b6a311e9d9d473905f |
| institution | Kabale University |
| issn | 2296-8016 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj-art-5650212bf91043b6a311e9d9d473905f2025-02-06T07:10:18ZengFrontiers Media S.A.Frontiers in Materials2296-80162025-02-011210.3389/fmats.2025.15452421545242Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steelKeke TongHaoran SunLuxing DuanXiurong ZuoThe influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance was investigated in high-strength steel. With ballistic test at a bullet impact velocity of about 810 m/s, the steel plate displayed the different ballistic performance, forming partially penetrated crater A and the completely penetrated crater B, despite the craters A and B were close together with only about 100 mm. The zone near crater A displayed excellent strength, plasticity and deformability than that near crater B. The segregation bands and TiN inclusions in steel plate originated from central segregation in continuous casting slabs. The Adiabatic shear bands (ASBs) with total length of 14,848 μm around crater B was more serious than that with total length of 6,239 μm around crater A, attributed to the low n value and strain hardening rate in completely penetrated crater region. Cracks parallel to the penetration direction only occurred around the crater B. Cracks also formed along the interfaces of ASB and matrix. The inhomogeneous deformation around ASBs resulted in stress concentration, especially at the interface between the matrix and the segregation band, making the long crack initiation and propagation under load of impact.https://www.frontiersin.org/articles/10.3389/fmats.2025.1545242/fulllow-alloy high-strength steelsegregation bandTiN inclusionmechanical propertyballistic performance |
| spellingShingle | Keke Tong Haoran Sun Luxing Duan Xiurong Zuo Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel Frontiers in Materials low-alloy high-strength steel segregation band TiN inclusion mechanical property ballistic performance |
| title | Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel |
| title_full | Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel |
| title_fullStr | Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel |
| title_full_unstemmed | Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel |
| title_short | Influence of TiN inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low-alloy high-strength steel |
| title_sort | influence of tin inclusions and segregation bands on the mechanical properties and ballistic performance during ballistic impact tests in low alloy high strength steel |
| topic | low-alloy high-strength steel segregation band TiN inclusion mechanical property ballistic performance |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2025.1545242/full |
| work_keys_str_mv | AT keketong influenceoftininclusionsandsegregationbandsonthemechanicalpropertiesandballisticperformanceduringballisticimpacttestsinlowalloyhighstrengthsteel AT haoransun influenceoftininclusionsandsegregationbandsonthemechanicalpropertiesandballisticperformanceduringballisticimpacttestsinlowalloyhighstrengthsteel AT luxingduan influenceoftininclusionsandsegregationbandsonthemechanicalpropertiesandballisticperformanceduringballisticimpacttestsinlowalloyhighstrengthsteel AT xiurongzuo influenceoftininclusionsandsegregationbandsonthemechanicalpropertiesandballisticperformanceduringballisticimpacttestsinlowalloyhighstrengthsteel |