合金元素钒对含6.5wt-％Si的Fe-Si合金原子有序相分解有很大的影响。本文通过磁性分析、X射线衍射、电镜观察等,对钒的作用进行了研究。发现加入少量钒减弱了合金的有序相分解,改善了合金的塑性并提高磁性;在加入较多钒的合金中观察到A_2+DO_3有序相分解。用Fe-Si,Fe-V,V-Si三个二元合金的热力学数据分析讨论了钒在Fe-Si合金中有序相分解的作用。
The alloying element V has remarkable influence on the ordering phase sepa-ration in the Fe-Si alloy containing 6.5 wt-%Si. The behaviour of V was inves-tigated by magnetic method, X-ray diffraction and electron microseopy. It wasfound that an addition of less amout of V may relax the ordering phase sepa-ration and improve the ductility and magnetic properties of the alloy. An A_2+DO_3 ordering phase separation was observed in the 11.57 at.-%Si-Fe alloy con-taining more V, namely, 0.88 at.-%. Discussion has been made of the effect ofV on the ordering phase separation in the Fe-Si alloy on the basis of analysisof thermodynamic data of three binary alloys of Fe-Si, Fe-V and V-Si.
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