Torsion fracture behavior of drawn pearlitic steel wires with different heat treatments
文献类型：会议论文
| 作者 | Wang ZJ(王志甲); Wu XL(武晓雷) ; Hong YS(洪友士); Hong YS
|
| 出版日期 | 2008 |
| 会议名称 | 7th International Conference on Fracture and Strength of Solids |
| 会议日期 | AUG 27-29, 2007 |
| 会议地点 | Urumqi, PEOPLES R CHINA |
| 关键词 | Pearlitic Steel Wire Heat Treatment Torsion Tests Dsc Strain Aging Recovery |
| 页码 | 41-46 |
| 通讯作者 | Hong YS |
| 中文摘要 | 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. |
| 收录类别 | CPCI-S ; EI |
| 会议网址 | http://www.scientific.net/AMR.33-37.41 |
| 会议录 | Advances In Fracture And Materials Behavior, Pts 1 And 2
 |
| 会议录出版者 | Stafa-Zurich |
| 会议录出版地 | Trans Tech Publications Ltd |
| 语种 | 英语 |
| ISSN号 | 1022-6680/978-0-87849-399-9 |
| WOS记录号 | WOS:000256659600008 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/25422]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 通讯作者 | Hong YS |
| 推荐引用方式 GB/T 7714 | Wang ZJ,Wu XL,Hong YS,et al. Torsion fracture behavior of drawn pearlitic steel wires with different heat treatments[C]. 见:7th International Conference on Fracture and Strength of Solids. Urumqi, PEOPLES R CHINA. AUG 27-29, 2007.http://www.scientific.net/AMR.33-37.41. |
入库方式： OAI收割
来源：力学研究所
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