Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature
A split Hopkinson pressure bar is used to investigate the dynamic mechanical properties of biomedical 316L stainless steel under strain rates ranging from 1 × 103 s-1 to 5 × 103 s-1 and temperatures between 25∘C and 800∘C. The results indicate that the flow stress, work-hardening rate, strain rate s...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Bioinorganic Chemistry and Applications |
| Online Access: | http://dx.doi.org/10.1155/2011/173782 |
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| author | Woei-Shyan Lee Tao-Hsing Chen Chi-Feng Lin Wen-Zhen Luo |
| author_facet | Woei-Shyan Lee Tao-Hsing Chen Chi-Feng Lin Wen-Zhen Luo |
| author_sort | Woei-Shyan Lee |
| collection | DOAJ |
| description | A split Hopkinson pressure bar is used to investigate the dynamic mechanical properties of biomedical 316L stainless steel under strain rates ranging from 1 × 103 s-1 to 5 × 103 s-1 and temperatures between 25∘C and 800∘C. The results indicate that the flow stress, work-hardening rate, strain rate sensitivity, and thermal activation energy are all significantly dependent on the strain, strain rate, and temperature. For a constant temperature, the flow stress, work-hardening rate, and strain rate sensitivity increase with increasing strain rate, while the thermal activation energy decreases. Catastrophic failure occurs only for the specimens deformed at a strain rate of 5 × 103 s-1 and temperatures of 25∘C or 200∘C. Scanning electron microscopy observations show that the specimens fracture in a ductile shear mode. Optical microscopy analyses reveal that the number of slip bands within the grains increases with an increasing strain rate. Moreover, a dynamic recrystallisation of the deformed microstructure is observed in the specimens tested at the highest temperature of
800∘C. |
| format | Article |
| id | doaj-art-6d67871cfe3b4bd5a8b73d7ed43ac9ff |
| institution | Kabale University |
| issn | 1565-3633 1687-479X |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Bioinorganic Chemistry and Applications |
| spelling | doaj-art-6d67871cfe3b4bd5a8b73d7ed43ac9ff2025-02-03T01:27:46ZengWileyBioinorganic Chemistry and Applications1565-36331687-479X2011-01-01201110.1155/2011/173782173782Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and TemperatureWoei-Shyan Lee0Tao-Hsing Chen1Chi-Feng Lin2Wen-Zhen Luo3Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, TaiwanDepartment of Mechanical Engineering, National Kaohsiung University of Applied Sciences, Kaohsiung 807, TaiwanNational Center for High-Performance Computing, Hsin-Shi Tainan 744, TaiwanDepartment of Mechanical Engineering, National Cheng Kung University, Tainan 701, TaiwanA split Hopkinson pressure bar is used to investigate the dynamic mechanical properties of biomedical 316L stainless steel under strain rates ranging from 1 × 103 s-1 to 5 × 103 s-1 and temperatures between 25∘C and 800∘C. The results indicate that the flow stress, work-hardening rate, strain rate sensitivity, and thermal activation energy are all significantly dependent on the strain, strain rate, and temperature. For a constant temperature, the flow stress, work-hardening rate, and strain rate sensitivity increase with increasing strain rate, while the thermal activation energy decreases. Catastrophic failure occurs only for the specimens deformed at a strain rate of 5 × 103 s-1 and temperatures of 25∘C or 200∘C. Scanning electron microscopy observations show that the specimens fracture in a ductile shear mode. Optical microscopy analyses reveal that the number of slip bands within the grains increases with an increasing strain rate. Moreover, a dynamic recrystallisation of the deformed microstructure is observed in the specimens tested at the highest temperature of 800∘C.http://dx.doi.org/10.1155/2011/173782 |
| spellingShingle | Woei-Shyan Lee Tao-Hsing Chen Chi-Feng Lin Wen-Zhen Luo Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature Bioinorganic Chemistry and Applications |
| title | Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature |
| title_full | Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature |
| title_fullStr | Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature |
| title_full_unstemmed | Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature |
| title_short | Dynamic Mechanical Response of Biomedical 316L Stainless Steel as Function of Strain Rate and Temperature |
| title_sort | dynamic mechanical response of biomedical 316l stainless steel as function of strain rate and temperature |
| url | http://dx.doi.org/10.1155/2011/173782 |
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