| Wf/Zr基非晶复合材料的弯曲断裂行为 |
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| 引用本文： | 王志华,陈光,姜斐. Wf/Zr基非晶复合材料的弯曲断裂行为[J]. 金属热处理, 2006, 31(4): 9-11 |
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| 作者姓名： | 王志华 陈光 姜斐 |
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| 作者单位： | 南京理工大学,金属纳米材料与技术联合实验室,江苏,南京,210094;南京理工大学,金属纳米材料与技术联合实验室,江苏,南京,210094;南京理工大学,金属纳米材料与技术联合实验室,江苏,南京,210094 |
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| 基金项目： | 中国科学院资助项目;国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用Instron试验机和SEM研究了钨丝（Wf）增强锆基非晶复合材料的弯曲断裂行为，并与纯非晶合金进行了比较。结果表明，两种材料具有不同的断裂行为：块体非晶在最大应力处产生裂纹，并向内部呈辐射状扩展，弯曲断裂强度为2900MPa；复合材料在界面处产生应力集中，并向周围扩展穿过钨丝断裂，弯曲断裂强度为2000MPa。
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| 关 键 词： | 钨丝/锆基非晶复合材料 断裂 弯曲 |
| 文章编号： | 0254-6051（2006）04-0009-03 |
| 收稿时间： | 2005-10-01 |
| 修稿时间： | 2005-10-01 |
Bending Fracture Behavior of Wf/Zr Based Amorphous Composites |
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| WANG Zhi-hua,CHEN Guang,JIANG Fei. Bending Fracture Behavior of Wf/Zr Based Amorphous Composites[J]. Heat Treatment of Metals, 2006, 31(4): 9-11 |
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| Authors: | WANG Zhi-hua CHEN Guang JIANG Fei |
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| Affiliation: | Joint Laboratory of Nanostructured Materials and Technology, Nanjing University of Science and Technology, Nanjing Jiangsu 210094, China |
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| Abstract: | Bending fracture behaviors of W fiber reinforced W_f/Zr based amorphous matrix composites were studied by using Instron testing machine and SEM compared with that of pure amorphous alloys.The results show that the two materials have different fracture behaviors:crack origins at the maximum stress for bulk amorphous alloys,and extends to inner in the form of radiation,the bending fracture strength is 2900MPa,while stress concentrates at the interfaces between matrix and W_f and spreads all around and across W_f,the bending fractuer strength is 2000MPa. |
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| Keywords: | Wf/Zr based amorphous matrix composites fracture bending |
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