Knowledge Management System of Institue of Mechanics, CAS
| Torsion fracture behavior of drawn pearlitic steel wires with different heat treatments | |
Wang ZJ(王志甲); Wu XL(武晓雷) ; Hong YS(洪友士); Hong YS
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| Source Publication | Advances In Fracture And Materials Behavior, Pts 1 And 2 |
| 2008 | |
| Pages | 41-46 |
| Conference Name | 7th International Conference on Fracture and Strength of Solids |
| Conference Date | AUG 27-29, 2007 |
| Conference Place | Urumqi, PEOPLES R CHINA |
| Abstract | In this paper, torsion fracture behavior of drawn pearlitic steel wires with different heat treatments was investigated. Samples with different heat treatments was investigated. Samples with different heat treatment conditions were subjected to torsion and tensile tests. The shear strain along the torsion sample after fracture was measured. Fracture surface of wires was examined by Scanning Electron Microscopy. In addition, the method of Differential Scanning Calorimetry was used to characterize the thermodynamic process in the heat treatment. A numerical simulation via finite element method on temperature field evolution for the wire during heat treatment process was performed. The results show that both strain aging and recovery process occur in the material within the temperature range between room temperature and 435 degrees C. It was shown that the ductility measured by the number of twists drops at short heating times and recovers after further heating in the lead bath of 435 degrees C. On the other hand, the strenght of the wire increases at short heating times and decreases after further heating. The microstructure inhomogeneity due to short period of heat treatment, coupled with the gradient characteristics of shear deformation during torsion results in localized shear deformation of the wire. In this situation, shear cracks nucleate between lamella and the wire breaks with low number of twists. |
| Keyword | Pearlitic Steel Wire Heat Treatment Torsion Tests Dsc Strain Aging Recovery |
| WOS ID | WOS:000256659600008 |
| URL | 查看原文 |
| Indexed By | CPCI-S ; EI |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/25422 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Hong YS |
| Recommended Citation GB/T 7714 | Wang ZJ,Wu XL,Hong YS,et al. Torsion fracture behavior of drawn pearlitic steel wires with different heat treatments[C]Advances In Fracture And Materials Behavior, Pts 1 And 2,2008:41-46. |
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| File Name/Size | DocType | Version | Access | License | ||
| AMR.33-37.41.pdf（1320KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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