镁对GCr15轴承钢中氧化铝夹杂的变质行为

特殊钢 ›› 2009, Vol. 30 ›› Issue (4): 11-13.

镁对GCr15轴承钢中氧化铝夹杂的变质行为

陈向阳^1,2, 姜周华¹, 朱苗勇¹, 董杰², 王博²

1东北大学材料与冶金学院，沈阳110004 ；
2莱芜钢铁集团，莱芜271104

收稿日期:2009-01-09 出版日期:2009-08-01 发布日期:2022-12-20
作者简介:李太全(1970-),男，博士研究生,1995年华东冶金学院毕业，纯净钢生产工艺和夹杂物粒子诱导相变研究。

A Study on Controlling Super-Low Phosphorus in High Grade Pipeline Steel

Chen Xiangyang^1,2, Jiang Zhouhua¹, Zhu Miaoyong¹, Dong Jie², Wang Bo²

1 School of Materials and Metallurgy, Northeastern University, Shenyang 110004；
2 Laiwu Iron and Steel Group, Laiwu 271104

Received:2009-01-09 Published:2009-08-01 Online:2022-12-20

摘要/Abstract

摘要： ^{计算了Mg对GCr15轴承钢中Al}₂^O₃^{夹杂物进行变质的热力学条件,得出当[Als]为0.03%时,钢中存在2.0×10-6}^{%Mg即能对Al}₂^O₃^{夹杂起变质作用,生成MgO·Al}₂^O₃^{。通过MoSi2电阻炉对1 kg轴承钢水插入1g含16.55%Mg的镁铝合金粉,试验Mg对Al}₂^O₃^{夹杂的变质效果。实验结果表明,加Mg后,钢中≥10μm Al}₂^O₃^{夹杂转变成细小、球形镁铝尖晶石夹杂,其中≤5μm夹杂占99.46%,其余为5～10μm夹杂。}

Abstract: Thermodynamic conditions to modify Al₂O₃ inclusions in bearing steel GCr15 by Mg have been calculated which was obtained that as [Als] was 0. 03%, 2. 0 x 10^-6% Mg in steel could modify the Al₂O₃ to form MgO·Al₂O₃. With added 1 g magnesium aluminum powder containing 16. 55% Mg in 1 kg bearing steel liquid in a MoSi2 electric resistance furnace to test the effect of Mg on Al₂O₃ inclusion modification. The test results showed that after added Mg, ≥10μm Al₂O₃ inclusions were modified to fine, spherical magnesium-aluminum spinel inclusions, of which ≤5 μm inclusions accounted for 99. 46% , others were 5 ~ 10 μm inclusions.

陈向阳, 姜周华, 朱苗勇, 董杰, 王博. 镁对GCr15轴承钢中氧化铝夹杂的变质行为[J]. 特殊钢, 2009, 30(4): 11-13.

Chen Xiangyang, Jiang Zhouhua, Zhu Miaoyong, Dong Jie , Wang Bo. A Study on Controlling Super-Low Phosphorus in High Grade Pipeline Steel[J]. Special Steel, 2009, 30(4): 11-13.