| Si、Na等杂质元素对W－Ni－Fe高比重合金性能和组织的影响 |
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| 引用本文： | 周国安,林国标,赖和怡,李家杰. Si、Na等杂质元素对W－Ni－Fe高比重合金性能和组织的影响[J]. 有色金属材料与工程, 1994, 0(5) |
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| 作者姓名： | 周国安 林国标 赖和怡 李家杰 |
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| 作者单位： | 北京科技大学，四川自贡硬质合金厂，北京矿治总院 |
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| 摘 要： | 在钨粉中掺入硅和钠元素，在Ｗ－Ｎｉ－Ｆｅ合金混合料中添加纯硅粉，通过实验得出硅和钠对高比重钨合金的力学性能会产生不利的影响。硅和钠形成了氯化物夹杂，在夹杂物周围存在孔隙。文中分析了夹杂物周围孔隙形成的机制，还根据夹杂物的成分，分析了Ａｌ、Ｍｇ、Ｃａ、Ｍｎ、Ｔｉ等金属元素对合金的影响。
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| 关 键 词： | 高比重合金；掺杂；夹杂物；性能；组织 |
Influences of Impurity-Elements such as Si and Na on the Properties and Structures of W-Ni-Fe High Density Alloys |
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| Zhou Guoan, Ling Guobiao, Lai Heyi. Influences of Impurity-Elements such as Si and Na on the Properties and Structures of W-Ni-Fe High Density Alloys[J]. Nonferrous Metal Materials and Engineering, 1994, 0(5) |
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| Authors: | Zhou Guoan Ling Guobiao Lai Heyi |
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| Abstract: | When Si and Na elements are mixed into W ponder, and when pure Si ponder is added into W-Ni-Fe alloy, disadvantageous influences on mechanical properties of high density W-alloys take place which are confirmed by experiments. Chlorides of Si and Na as occluded foreign substances are formed, and on the surroundings of these substances exist crevices. The mechanisms of the formation of such crevices are analyzed, and the influences of metallic elements, such as Al, Mg, Ca, Mn and Ti on the alloy are also analyzed according to the compositions of the occluded foreign substances. |
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| Keywords: | High-density alloy Admix Occluded foreign substances Properties Structure |
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