【摘要】：通過不同冷卻速度下的熱模擬試驗,研究了鈮微合金化對軸承鋼碳化物網(wǎng)狀的影響。結(jié)果表明,不同冷速條件下,含鈮鋼和不含鈮鋼中的碳化物網(wǎng)狀級別差別不大;當(dāng)冷卻速度大于5℃/s時,碳化物網(wǎng)狀級別小于1級;含鈮軸承鋼的珠光體團(tuán)尺寸小,碳化物網(wǎng)狀不連續(xù)分布。鈮微合金化對碳化物網(wǎng)狀的影響主要通過細(xì)化珠光體團(tuán)和改變碳化物網(wǎng)狀的形態(tài)來體現(xiàn)。
[Abstract]:The effect of niobium microalloying on the carbide mesh of bearing steel was studied by thermal simulation tests at different cooling rates. The results show that there is little difference in the carbide mesh level between niobium containing steel and non niobium steel under different cooling rates; when the cooling rate is more than 5 鈩，

本文編號：2230650