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钢中含适量的AlN能提高钢的机械性能。矽钢中的AlN能提高钢的磁性。为此,定量地提取和测定钢中AlN,具有极为重要的意义。氮一般以固溶氮和化合氮两种形式存在于钢中。含锰、铬的钢,氮固溶于碳化物中。钢中铝是强烈形成氮化物的元素。铝以固溶铝、AlN、FeAl_2O_4(六方晶形)、Al_2O_3和Fe_3C中的固溶铝存在于钢中。如果钢中有大量的Fe_3C存在时,必须将AlN与Fe_3C分离。而矽钢经X光分
Steel containing the right amount of AlN can improve the mechanical properties of steel. AlN in silicon steel can improve the magnetic properties of steel. Therefore, it is very important to quantitatively extract and measure AlN in steel. Nitrogen generally solid solution nitrogen and nitrogen compounds exist in two forms of steel. Manganese, chromium steel, nitrogen dissolved in the carbide. Aluminum in steel is a strongly nitrided element. Aluminum is present in the steel as solid solution aluminum, AlN, FeAl 2 O 4 (hexagonal), and Al 2 O 3 and Fe 3 C dissolved in aluminum. If there is a large amount of Fe 3 C in the steel, AlN must be separated from Fe 3 C. The silicon steel by X-ray points