可伐合金废料首先用盐酸通氯溶解，使钴、镍、铁进入溶液而金不溶。

The kovar scrap is first dissolved with hydrochloric acid and chlorine.

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本文通过焊接试验、显微分析和磨损试验论述了以铬、镍、铁基合金代替钴、铬、钨合金作石油钻头牙爪堆焊耐磨合金的问题。

In this article we discussed the possibility of replacement of cobalt alloy by Cr-Ni iron Base alloy in drill bit bearing on the basis of welding test, wearing test and microscopic examination.

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在铁镍部分代钴的基础上，采用常规硬质合金工艺，以不同的混合稀土添加量进行了实验。

The conventional producing process of cemented carbide was applied on the basis of replacing cobalt partly with iron and nickel and the mixed rare earth of different content was added.

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