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| ferroalloy with nitrogen (【技】通过一定的冶炼工艺，使铁合金中的含氮量达到规定标准的含量，以用做含氮合金钢的添加剂。通常可在真空熔炼炉中将不含氮的铁合金熔化并充高压氮气获得。例如氮化铬铁、氮化锰铁、氮化硅铬铁、氮化硅铁都是通过上述方法得到的。这种方法亦称为液相渗氮法。也可以采用固相渗氮法制取含氮铬铁和含氮锰铁。由于氮价格低廉、资源丰富，既能对钢进行强化，又能提高不锈钢耐蚀性，因此含氮铁合金具有潜在的发展前途。) | |||
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