1) H13 steel with niobium
含铌H13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) 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。
4) H13 steel
H13钢
1.
Study on thermal fatigue behavior of boriding layer of H13 steel;
H13钢渗硼层热疲劳性能的研究
2.
Changes of morphology and composition of carbides in H13 steel after thermal fatigue;
H13钢热疲劳后碳化物形态和组分的变化
3.
Application of H13 steel hot extrusion dies treated by self-protecting paste Re-B-C-N multi-elements penetrating;
H13钢热挤压模具自保护膏剂稀土硼碳氮共渗的应用研究
5) steel H13
H13钢
1.
Application of argon atmosphere ion nitriding in improving the thermal fatigue behavior of steel H13;
氩气氛离子渗氮提高H13钢热疲劳性能
2.
Improvement of dehygenation annealing technology for forgings of steel H13;
H13钢锻件去氢退火工艺的改进
3.
Carbide dispersion carburizing of steel H13;
H13钢碳化物析出型渗碳(CDC)处理
6) niobium-bearing low carbon steel
含铌低碳钢
1.
The continuous cooling transformation of niobium-bearing low carbon steel and plain low carbon steel under different transformation conditions were investigated by utilizing Gleeble-1500 thermomechanical simulator.
用G leeb le-1500热力模拟实验机研究了含铌低碳钢和普通低碳钢经不同变形条件下连续冷却过程的相变规律,利用热膨胀法结合金相法得到了连续冷却转变曲线,分析比较了它们的组织演变规律,测定了含铌低碳钢在不同温度和不同变形量下硬度的变化。
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