| 添加钴对W-Ni-Fe高密度合金性能的影响 |
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| 引用本文： | 唐新文,罗述东,易健宏.添加钴对W-Ni-Fe高密度合金性能的影响[J].粉末冶金材料科学与工程,2003,8(3):196-200. |
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| 作者姓名： | 唐新文 罗述东 易健宏 |
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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 |
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| 基金项目： | 国家教育部高等学校骨干教师资助计划项目，湖南省自然科学基金(01JJY2139) |
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| 摘 要： | 在原料粉末中加入微量的Co元素,用粉末冶金液相烧结法制备了W-Ni-Fe高密度合金;采用金相显微镜、SEM等仪器对合金组织和杂质分布进行了分析。研究结果表明:添加钴元素后,增强了基体相对钨颗粒的润湿性,使钨颗粒表面更加圆滑,更加有利于塑性变形;提高了合金的钨颗粒与基体相之间的界面结合强度,从而提高了合金的强度和延伸率。
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| 关 键 词： | 高密度合金 力学性能 润湿性 界面结合强度 |
| 修稿时间： | 2003年3月10日 |
The effect of Co addition on the properties of W-Ni-Fe high density tungsten alloys |
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| TANG Xin-wen,LUO Shu-dong,YI Jian-hong.The effect of Co addition on the properties of W-Ni-Fe high density tungsten alloys[J].materials science and engineering of powder metallurgy,2003,8(3):196-200. |
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| Authors: | TANG Xin-wen LUO Shu-dong YI Jian-hong |
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| Abstract: | W-Ni-Fe high density alloys have been attained by means of Liquid Phase Sintering (LPS) of Powder Metallurgy with the addition of Co element powder. The microstructure and addition distribution of alloys have been analyzed by means of optical microscope, SEM respectively. The soakage property of the matrix to the tungsten particles has been increased by Co addition, at the same time, the edge of tungsten particles has got smooth and benefit plastic deformation; The interface combination strength of the matrix between the tungsten particles has been increased, so the ultimate tensile strength and the elongation of alloys have been increased after added Co element. |
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| Keywords: | high density alloys mechanical properties soakage property interface combination strength |
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