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当前位置:甘肃快三走势图 » 株钨资讯中心 » 常见问题简答 » 硬质合金材料的基体组成及加工方式

硬质合金材料的基体组成及加工方式

文章出处:责任编辑:人气:-发表时间:2015-09-21 14:48【

硬质合金的基体由两部分组成:一部分是硬化相;另一部分是粘结金属。硬化相是元素周期表中过渡金属的碳化物,如碳化钨、碳化钛、碳化钽,它们的硬度很高,熔点都在2000℃以上,有的甚至超过4000℃。另外,过渡金属的氮化物、硼化物、硅化物也有类似的特性,也可以充当硬质合金中的硬化相。硬化相的存在决定了合金具有极高硬度和耐磨性。粘结金属一般是铁族金属,常用的是钴和镍。

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