| 细晶钨合金制备工艺的研究 |
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| 引用本文： | 范景莲,汪登龙,刘涛.细晶钨合金制备工艺的研究[J].兵器材料科学与工程,2006,29(2):1-5. |
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| 作者姓名： | 范景莲 汪登龙 刘涛 |
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| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083;中南大学,粉末冶金国家重点实验室,湖南,长沙,410083;中南大学,粉末冶金国家重点实验室,湖南,长沙,410083 |
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| 基金项目： | 获得国家“863”项目“细晶钨合金穿甲弹弹芯材料”资助,项目编号为：2002AA305503 |
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| 摘 要： | 研究了添加微量稀土氧化物Y2O3和机械合金化所制备的90W-7Ni-3Fe合金的显微组织与性能。试验采用机械合金化工艺制备含微量稀土氧化物Y2O3的90W-7Ni-3Fe复合粉末,将粉末在1460～1480℃烧结30min,制备最大抗拉强度大于962MPa、延伸率为30.8%、钨晶粒尺寸为8～12μm的细晶高性能90W-7Ni-3Fe合金。研究了稀土氧化物Y2O3对合金性能和显微组织结构特征的影响。
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| 关 键 词： | 细晶钨合金 机械合金化 稀土 纳米材料 烧结 |
| 文章编号： | 1004-244X（2006）02-0001-05 |
| 收稿时间： | 2004-07-16 |
| 修稿时间： | 2005-11-15 |
Preparing process of fine-grain tungsten heavy alloy with high mechanical properties |
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| FAN Jing-lian,WANG Deng-long,LIU Tao.Preparing process of fine-grain tungsten heavy alloy with high mechanical properties[J].Ordnance Material Science and Engineering,2006,29(2):1-5. |
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| Authors: | FAN Jing-lian WANG Deng-long LIU Tao |
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| Affiliation: | The State Key Laboratory for Powder Metallurgy, Central South University, Changsha 410083, China |
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| Abstract: | The microstructure and properties of 90W-7Ni-3Fe prepared by adding minor rare earth oxide Y2O3 and mechanical alloying were studied.In the experiment,the 90W-7Ni-3Fe powder containing Y2O3 was subjected to mechanical alloying to f-orm a composite powder,then the powder was pressed and sintered at 1 460～1 480 ℃ for 30 min,the fine grain tungsten hea-vy alloy with ideal mechanical properties was obtained,in which the spherical tungsten grain was 8～12 μm,the maximum ten-sile strength was about 962 MPa,and its elongation was 30.8%.The influences of Y2O3 on the microstructure and properties were discussed. |
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| Keywords: | fine-grained tungsten alloy mechanical alloying rare earth oxide nano-matefial sintefing |
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