张永, 马党参, 刘建华, et al. Effect of Nb Content on Structure and Mechanical Properties of High Speed Steel W3Mo2Cr4V(Nb)[J]. Special Steel, 2007, 28(3): 44-46.
张永, 马党参, 刘建华, et al. Effect of Nb Content on Structure and Mechanical Properties of High Speed Steel W3Mo2Cr4V(Nb)[J]. Special Steel, 2007, 28(3): 44-46.DOI:
The effect of0~1.5% Nb on structure and mechanical properties of steel W3Mo2Cr4V(0.8~1. 1C
3.8 ~4. 1Cr
2.9~3.2W
1.8~2. 1Mo
1.0~1.3V)melted by 25 kg vacuum induction funace has been studied. Test results showed that with increasing Nb content the amount of niobium carbide in cast structure increased; quenching austenite grain was refined; as quenched at 1180 ℃
compared with HRC value of≤0. 1% Nb steel the HRC value of 1.2%~ 1.5%Nb steel increased by 6.0; the secondary hardening ability and red hardness of Nb steel were obviously increased.