1) Niobium Steel
铌钢
1.
Effect of Hot Rolling Parameters on Deformation Resistance of Coarse-Grained Niobium Steel;
热轧参数对粗奥氏体晶粒铌钢变形抗力的影响
2.
In present work,variation of open circuit potential of niobium steel and carbon steel in seawater at ambient temperature with time was studied.
用交流阻抗谱方法研究了开路电位条件下铌钢和普通碳钢在天然海水及室温时腐蚀电位随时间的变化规律,结果表明:铌钢腐蚀产物比普通碳钢腐蚀产物致密;铌钢的耐腐蚀性能优于普通碳钢。
2) Nb containing steel
含铌钢
1.
Analysis on transverse crack of Nb containing steel slab and improvement measures;
含铌钢铸坯横裂纹的分析及改进措施
2.
1 steelmaking plant of Jinan steel produced Nb containing steels such as HRB400 with ferrovanadium instead of ferro-niobium.
为降低生产成本,济钢第一炼钢厂方坯铸机以铌铁代替钒铁生产HRB400等含铌钢种,由于铌为裂纹敏感性元素,其铸坯横裂纹发生率远远大于其它钢种。
3.
Among these defects,transverse cracks get main attention,Nb containing steel slab is easy to appear such cracks.
本文分析了含铌钢铸坯横裂纹的产生原因,通过测温实验及高温力学性能实验分析S355J2-1钢的二冷配水方案,并提出具体优化措施,取得良好效果。
3) H13 steel with niobium
含铌H13钢
4) Nb-Ti-bearing steel
铌钛钢
1.
Test results show that addition cerium (Ce) in low sulfur Nb-Ti-bearing steel affects as follows: Ce can increase the transformation point t_(Ar_3) and t_(Ar_1), enlarge the intervals of temperature (t_(Ar_1)-t_(Ar_3)).
在实验室条件下采用50kg真空感应炉冶炼和两段控制轧制工艺,采用THERMECMASTOR Z热模拟机对过冷奥氏体连续冷却转变曲-tAr1)温度区间增大;并使钢的CCT曲线右移,并且使(tAr3线进行了测定,试验结果表明,低硫铌钛钢中稀土铈能提高钢的临界点tAr3和tAr1和上移,降低了钢的淬透性;铈会使贝氏体转变点升高,同时加大了贝氏体转变间隔;当冷却速度较高时,稀土使马氏体由粗条状变为细条状,降低了Ms点,并且增强了马氏体结构的板条化趋势,抑制了片状晶生成。
5) niobium-bearing steel
含铌钢
1.
The effect of pre-deformation on the mechanical properties of low carbon niobium-bearing steel is investigated in this paper.
试验结果表明,在等温时效过程中预变形使含铌钢析出过程加快,析出的Nb(CN)变小,而且使含铌钢板条马氏体等温时效拉伸强度提高200MPa,其中第二相Nb(CN)粒子的强化效果约为130MPa,位错强化效果约为90MPa。
6) low carbon Nb steel
低碳铌钢
补充资料：铌磷半钢
(1)用途供耐磨铸铁生产用。(2)化学成分见表2—24。表2-24铌磷半钢的化学成分
元素化学成分(质量分数)(％)P3.50～4.50Nb0.06～O．10C2.50～3.50Si0.06～0.20Mn0.10～0.60S≤0.06
注：铌磷半钢呈深灰色，块重范围为2～7kg，大于7kg与小于2kg的块重之和，每批中不应超过总质量的10％。说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条