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Effect of Rare Earths on Properties of BNbRE Rail Steel 总被引:1,自引:0,他引:1
The development and properties of BNbRE rail steel and the effect of RE on rail steel were studied. The results show that the properties of rail steel (δb ≥980 MPa, δ5≥ 8 % ) can be improved by adding RE and niobium and adjusting the content of C, Si and Mn in steel. At the same time, the abrasion resistance, contact fatigue and fatigue property of BNbRE rail steel are excellent. It also shows that RE in rail steel has the functions of purifying steel, modifying inclusion and micro-alloy action effect. The improved steel-making process enhances the quality of molten steel. Although the content of RE is low, excellent properties of BNbRE rail steel are achieved. 相似文献
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高温防氧化钢坯涂料的研制 总被引:1,自引:0,他引:1
本文分实验室模拟研究的现场涂料试用研究两大部份。研究了高温下钢坯氧化机理;硅酸盐珐琅涂层在1200℃下防氧化机理;涂层的实验室模拟研究。 现场试用表明:涂层在1200℃下,2~2.5小时可减少钢坯在加热炉内氧化40~60%,全程氧化30%左右。涂层对轧制工艺、表面质量没有不利影响。 相似文献