| 聚晶金刚石复合片聚晶层的冲击破坏研究 |
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| 引用本文： | 汪冰峰. 聚晶金刚石复合片聚晶层的冲击破坏研究[J]. 矿冶工程, 2008, 28(5): 100-102 |
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| 作者姓名： | 汪冰峰 |
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| 作者单位： | 中南大学材料科学与工程学院,湖南,长沙,410083;金瑞新材料科技股份有限公司,湖南,长沙,410012 |
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| 基金项目： | 中国博士后科学基金，金瑞新材料科技股份有限公司博士后科学项目 |
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| 摘 要： | 提出了一种倾斜冲击破坏实验方法, 能够实现对聚晶金刚石复合片(PDC)聚晶层的冲击破坏试验。采用数显工具显微镜和扫描电子显微镜对PDC聚晶层冲击破坏断口进行观测, 结果表明, 新的实验方法使PDC处于近刚性接触的环境下, 实现对PDC聚晶层点-面的冲击破坏, 能够评价聚晶层抗冲击破坏能力的大小; 在冲击破坏过程中, 聚晶层冲击点边缘部分形成多条形变带, 沿形变带破坏产生裂纹并长大而形成断裂面。并对PDC聚晶层冲击破坏的机理进行了讨论。
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| 关 键 词： | 聚晶金刚石复合片 聚晶层 冲击破坏 |
| 收稿时间： | 2008-04-16 |
Study on Impact Failure of Polycrystalline Layer in Polycrystalline Diamond Compact |
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| WANG Bing-feng. Study on Impact Failure of Polycrystalline Layer in Polycrystalline Diamond Compact[J]. Mining and Metallurgical Engineering, 2008, 28(5): 100-102 |
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| Authors: | WANG Bing-feng |
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| Affiliation: | 1. School of Materials Science and Engineering, Central South University, Changsha 410083, Hunan, China; 2. King-ray New Materials Science & Technology Co Ltd, Changsha 410012, Hunan, China |
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| Abstract: | An inclined impact failure method was proposed,by which impact failure test of the polycrystalline layer in polycrystalline diamond compact(PDC) could be realized.The impact fractures in the polycrystalline layer were investigated by means of digital tool microscope and scanning electronic microscope.The results indicated that the new method made the contact state of PDC approximately rigid,realizing point-to-face impact failure of the polycrystalline layer.The resistance ability of the polycrystalline laye... |
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| Keywords: | polycrystalline diamond compact polycrystalline layer impact failure |
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