| 瓦纳线与铜石墨材料断裂特性 |
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| 引用本文： | 丁华东,谢凤宽,曹勇.瓦纳线与铜石墨材料断裂特性[J].装甲兵工程学院学报,2004,18(3):59-61. |
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| 作者姓名： | 丁华东 谢凤宽 曹勇 |
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| 作者单位： | 装甲兵工程学院材料科学与工程系,北京,100072 |
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| 摘 要： | 通过测量材料力学性能和观察断口形貌,讨论铜石墨材料断口形貌中的瓦纳线与材料断裂特性的关系,发现瓦纳线是铜石墨材料韧性断裂的标志;结合材料微观结构特性,分析应力波的传播及其对材料的作用,认为瓦纳线是横波在材料中传播所引起的塑性变形.
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| 关 键 词： | 铜石墨材料 多孔材料 瓦纳线 断口分析 |
| 文章编号： | 1672-1497(2004)03-0059-03 |
| 修稿时间： | 2004年5月7日 |
Relationship between Wallner Liness and Copper-graphite Materials' Fracture Property |
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| DING Hua-dong XIE Feng-kuan CAO Yong.Relationship between Wallner Liness and Copper-graphite Materials' Fracture Property[J].Journal of Armored Force Engineering Institute,2004,18(3):59-61. |
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| Authors: | DING Hua-dong XIE Feng-kuan CAO Yong |
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| Institution: | DING Hua-dong XIE Feng-kuan CAO Yong |
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| Abstract: | Through mechanical property testing and fracture analysis, the relationship between the Wallner Lin-ess and the copper-graphite materials' fracture property has been investigated. The Wallner Liness in copper-graphite materials has been found to be the ductile fracture sign. Based on the materials' microstructure, stress waves transmitting features and its acting on materials, this paper concluds that the Wallner Liness is plastic deformation trace engendered by transverse wave transmitting in materials. |
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| Keywords: | copper-graphite materials porous materials Wallner Liness fracture analysis |
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