Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L)
The present study compares the mechanical and electrochemical behaviour of austenitic (AISI 316L) stainless steel compacted at various pressures (200, 400 and 600 MPa) and conventionally sintered at super-solidus temperature of 1,400°C. The electrochemical behaviour was investigated in 0.1 N H2SO4 s...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2016-08-01
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| Series: | High Temperature Materials and Processes |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/htmp-2015-0083 |
| _version_ | 1818358409602269184 |
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| author | Muthuchamy A. Raja Annamalai A. Ranka Rishabh |
| author_facet | Muthuchamy A. Raja Annamalai A. Ranka Rishabh |
| author_sort | Muthuchamy A. |
| collection | DOAJ |
| description | The present study compares the mechanical and electrochemical behaviour of austenitic (AISI 316L) stainless steel compacted at various pressures (200, 400 and 600 MPa) and conventionally sintered at super-solidus temperature of 1,400°C. The electrochemical behaviour was investigated in 0.1 N H2SO4 solution by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The shrinkage decreased and densification has been increased with increasing pressure. The mechanical and electrochemical behaviour with pressure has been correlated with densification response and microstructure (pore type, volume and morphology). Highest densification (~92% theoretical) achieved at 600 MPa (compaction pressure) and 1,400°C (sintering temperature) resulted in excellent combination of tensile strength and ductility (456 ± 40 MPa, 25 ± 1.1%), while showing excellent corrosion resistance (0.1 mmpy or 4.7 mpy). |
| first_indexed | 2024-12-13T20:28:33Z |
| format | Article |
| id | doaj.art-6708f3194a3147338995a484fda575ef |
| institution | Directory Open Access Journal |
| issn | 0334-6455 2191-0324 |
| language | English |
| last_indexed | 2024-12-13T20:28:33Z |
| publishDate | 2016-08-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | High Temperature Materials and Processes |
| spelling | doaj.art-6708f3194a3147338995a484fda575ef2022-12-21T23:32:29ZengDe GruyterHigh Temperature Materials and Processes0334-64552191-03242016-08-0135764365110.1515/htmp-2015-0083Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L)Muthuchamy A.0Raja Annamalai A.1Ranka Rishabh2Department of Metallurgical and Materials Engineering, Indian Institute of Technology Madras, Chennai 600036, IndiaManufacturing Division, SMBS, VIT University, Vellore 632014, Tamil Nadu, IndiaManufacturing Division, SMBS, VIT University, Vellore 632014, Tamil Nadu, IndiaThe present study compares the mechanical and electrochemical behaviour of austenitic (AISI 316L) stainless steel compacted at various pressures (200, 400 and 600 MPa) and conventionally sintered at super-solidus temperature of 1,400°C. The electrochemical behaviour was investigated in 0.1 N H2SO4 solution by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). The shrinkage decreased and densification has been increased with increasing pressure. The mechanical and electrochemical behaviour with pressure has been correlated with densification response and microstructure (pore type, volume and morphology). Highest densification (~92% theoretical) achieved at 600 MPa (compaction pressure) and 1,400°C (sintering temperature) resulted in excellent combination of tensile strength and ductility (456 ± 40 MPa, 25 ± 1.1%), while showing excellent corrosion resistance (0.1 mmpy or 4.7 mpy).https://doi.org/10.1515/htmp-2015-0083austenitic stainless steelcompaction pressuresinteringdensificationelectrochemical |
| spellingShingle | Muthuchamy A. Raja Annamalai A. Ranka Rishabh Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) High Temperature Materials and Processes austenitic stainless steel compaction pressure sintering densification electrochemical |
| title | Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) |
| title_full | Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) |
| title_fullStr | Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) |
| title_full_unstemmed | Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) |
| title_short | Mechanical and Electrochemical Characterization of Super-Solidus Sintered Austenitic Stainless Steel (316L) |
| title_sort | mechanical and electrochemical characterization of super solidus sintered austenitic stainless steel 316l |
| topic | austenitic stainless steel compaction pressure sintering densification electrochemical |
| url | https://doi.org/10.1515/htmp-2015-0083 |
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