| 冲击波作用下粉末颗粒效应及其形成过程 |
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| 引用本文： | 解子章,邱军,等.冲击波作用下粉末颗粒效应及其形成过程[J].北京科技大学学报,1993,15(1):10-13. |
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| 作者姓名： | 解子章 邱军 |
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| 作者单位： | 材料科学与工程系 |
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| 摘 要： | 采用两种颗粒尺寸相差悬珠的高速钢粉末进行爆炸烧结机制的研究,发现了明显的“颗粒效应”,烧结过程首先在小颗粒变形量最大的尖角处发生熔化,在冲击波作用下使液体流激烈运动,加速了颗粒的熔化,最后使颗粒相互粘结在一起,达到烧结的目的。
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| 关 键 词： | 爆炸烧结 颗粒效应 爆炸成型 激波 |
Powder Grain Effect under Shock Wave Motion and Its Processing |
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| Xie Zizhang Qiu Jun Yang Rang.Powder Grain Effect under Shock Wave Motion and Its Processing[J].Journal of University of Science and Technology Beijing,1993,15(1):10-13. |
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| Authors: | Xie Zizhang Qiu Jun Yang Rang |
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| Institution: | Xie Zizhang Qiu Jun Yang Rang Department of Materials Science and Engineering |
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| Abstract: | Mechanism of explosive sintering of two kings of high speed steel powder with remarkable difference in frain size is studied, In the course of sintering "grain effect" is found apparently. That is, for the HPS powder with the same composition,small grain is prior to melting than the large. The melting process takes place in peak pin.Melting bed will gradually build along the grain surface with the increase of shoce energy,there by resulting in intensifying fluid motion.accelerating grain melting.Finally grains bind each other,sinter-ing occurs. |
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| Keywords: | explosive sintering grain effect shock wave deformation |
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