【摘要】 对镍加入到钨基高密度合金中的４种添加方式进行了研究，结果表明，镍以共还原法的添加方式加入得到的合金，在液相烧结时活化烧结作用大，可降低合金的烧结温度，钨晶粒微细，可防止脆性相ＷＮｉ４金属间化合物的形成，同时合金具有较好的物理力学性能。更多还原

【Abstract】 Four Niaddition patterns of high density Wbase alloys were studied. The results show that the alloys obtained by addition of Nickel in a coreduction way can reduce their sindering temperature due to great activated sintering action in liquid phase sintering, and avoid the formation of intermetallic compounds of fragil phase WNi4 due to extremely fine crystal grains of tungsten. In addition, the alloys have good physical and mechanical performances.更多还原