Al，Si，Sn，Zn合金元素对W-Ni-Mn烧结致密的影响

Influence of Alloying Elements Al, Si, Sn, Znon Density of W-Ni-Mn alloy

摘要:

针对W-Ni—Mn合金难烧结致密的问题，通过在原料中添加合金元素（活泼的或低熔点的）来改善其烧结特性，提高其致密度。通过对烧结体显微组织分析，发现Al和Si元素能够还原合金中的MnO，净化粘结相：Sn，Zn能够降低合金的烧结温度-2种途径都有效地提高了该合金的致密度。

Abstract:

In order to increase the density of W-Ni-Mn alloy, some alloying elements were added into W-Ni-Mn alloy for improving sintering characteristics. SEM and EDS were used to study the microstructure of sintered W-Ni-Mn alloy. The results show that MnO can be deoxidized by aluminum and silicon, to purify the binder phase;Zn and Sn can reduce the sintering temperature. The two approaches improve the density of W-Ni-Mn alloy.