Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires
The effects of microstructural features on torsional ductility of cold drawn and annealed hyper-eutectoid steel wires were investigated. The patented wire rods were successively dry drawn to ε = 0.79 (54.7%) ~ 2.38 (90.7%). To examine the effects of hot-dip galvanizing conditions on torsional ductil...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-08-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/10/8/1043 |
| _version_ | 1797560469577269248 |
|---|---|
| author | Jin Young Jung Kang Suk An Pyeong Yeol Park Won Jong Nam |
| author_facet | Jin Young Jung Kang Suk An Pyeong Yeol Park Won Jong Nam |
| author_sort | Jin Young Jung |
| collection | DOAJ |
| description | The effects of microstructural features on torsional ductility of cold drawn and annealed hyper-eutectoid steel wires were investigated. The patented wire rods were successively dry drawn to ε = 0.79 (54.7%) ~ 2.38 (90.7%). To examine the effects of hot-dip galvanizing conditions on torsional ductility, steel wires with ε = 1.95 were annealed at 500 °C for 30 s for ~1 h in a salt bath. In cold drawn wires, the number of turns to failure increased steadily, showing the maximum peak, and then decreased with drawing strain. During the post-deformation annealing at 500 °C, torsional ductility of steel wires decreased with annealing time, except for the rapid drop due to the occurrence of delamination for 10 s annealing. The decrease of the number of turns to failure would be attributed to the microstructural evolutions, accompanying the spheroidization and growth of cementite particles and the recovery of ferrite in cold drawn steel wires. From the relationship between microstructural evolution and torsional ductility, it was found that among microstructural features, the shape and orientation of lamellar cementite showed the significant effect on torsional ductility of cold drawn and annealed hyper-eutectoid steel wires. |
| first_indexed | 2024-03-10T18:00:59Z |
| format | Article |
| id | doaj.art-67cabb84ae904a568ad7305f3472367c |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T18:00:59Z |
| publishDate | 2020-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-67cabb84ae904a568ad7305f3472367c2023-11-20T08:53:49ZengMDPI AGMetals2075-47012020-08-01108104310.3390/met10081043Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel WiresJin Young Jung0Kang Suk An1Pyeong Yeol Park2Won Jong Nam3School of Advanced Materials Engineering, Kookmin University, Seoul 02707, KoreaSchool of Advanced Materials Engineering, Kookmin University, Seoul 02707, KoreaKISWIRE R&D Center, Pohang 37872, Gyeongbuk, KoreaSchool of Advanced Materials Engineering, Kookmin University, Seoul 02707, KoreaThe effects of microstructural features on torsional ductility of cold drawn and annealed hyper-eutectoid steel wires were investigated. The patented wire rods were successively dry drawn to ε = 0.79 (54.7%) ~ 2.38 (90.7%). To examine the effects of hot-dip galvanizing conditions on torsional ductility, steel wires with ε = 1.95 were annealed at 500 °C for 30 s for ~1 h in a salt bath. In cold drawn wires, the number of turns to failure increased steadily, showing the maximum peak, and then decreased with drawing strain. During the post-deformation annealing at 500 °C, torsional ductility of steel wires decreased with annealing time, except for the rapid drop due to the occurrence of delamination for 10 s annealing. The decrease of the number of turns to failure would be attributed to the microstructural evolutions, accompanying the spheroidization and growth of cementite particles and the recovery of ferrite in cold drawn steel wires. From the relationship between microstructural evolution and torsional ductility, it was found that among microstructural features, the shape and orientation of lamellar cementite showed the significant effect on torsional ductility of cold drawn and annealed hyper-eutectoid steel wires.https://www.mdpi.com/2075-4701/10/8/1043pearlitic steel wiretorsional ductilityannealingstrain hardening |
| spellingShingle | Jin Young Jung Kang Suk An Pyeong Yeol Park Won Jong Nam Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires Metals pearlitic steel wire torsional ductility annealing strain hardening |
| title | Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires |
| title_full | Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires |
| title_fullStr | Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires |
| title_full_unstemmed | Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires |
| title_short | Effects of Wire Drawing and Annealing Conditions on Torsional Ductility of Cold Drawn and Annealed Hyper-Eutectoid Steel Wires |
| title_sort | effects of wire drawing and annealing conditions on torsional ductility of cold drawn and annealed hyper eutectoid steel wires |
| topic | pearlitic steel wire torsional ductility annealing strain hardening |
| url | https://www.mdpi.com/2075-4701/10/8/1043 |
| work_keys_str_mv | AT jinyoungjung effectsofwiredrawingandannealingconditionsontorsionalductilityofcolddrawnandannealedhypereutectoidsteelwires AT kangsukan effectsofwiredrawingandannealingconditionsontorsionalductilityofcolddrawnandannealedhypereutectoidsteelwires AT pyeongyeolpark effectsofwiredrawingandannealingconditionsontorsionalductilityofcolddrawnandannealedhypereutectoidsteelwires AT wonjongnam effectsofwiredrawingandannealingconditionsontorsionalductilityofcolddrawnandannealedhypereutectoidsteelwires |