Fe-C-V合金中V_4(C,N)_3对疲劳位错运动区域分布和疲劳强度的影响

INFLUENCE OF V_4 (C,N)_3 IN Fe-C-V ALLOY ON DISTRIBUTION OF DISLOCATION AREA AND FATIQUE STRENGTH

本文研究了Fe-C-V合金中,V_4(C,N)_3对疲劳位错运动区域和疲劳强度的影响。研究表明细小、均匀、弥散、稳定的V_4(C,N)_3促使位错运动分布在广泛区域,减小疲劳损伤局部化,明显提高疲劳强度。

This paper discribes the influence of V_4(C,N)_3 in Fe-C-V alloy on the area of dislocation movement and fatique strength. The results show that fine, uniform, dispersad and stable V_4 (C,N)_3 may enlarge the area of dislocation movement, reduce local fatique failure and enhence fatiquc strength evidently.