1)  Nb-bearing microalloyed steel
含 Nb 微合金钢
2)  microalloyed steel containing Nb
含Nb微合金钢
3)  Nb-microalloyed steel
Nb 微合金钢
4)  Nb microalloyed steel
Nb微合金钢
1.
The effects of over-relaxation on precipitation behavior of Nb microalloyed steel aged at 525 ℃ after austenite deforming were analysed by using thermo-simulation test, measurement of hardness and transmission electron microscopy(TEM).
运用热模拟技术,通过硬度测量及透射电镜(TEM)观察,分析了含Nb微合金钢奥氏体变形后长时间弛豫对低温(525℃)时效行为的影响。
5)  Nb Microalloyed Steel
Nb-微合金钢
6)  Nb-Ti microalloyed steel
Nb-Ti微合金钢
1.
The phase transformation behavior of Nb-Ti microalloyed steel during cooling process after deforma- tion was studied by the Gleeble-2000 thermomechanical experiment simulator and by means of a combined method of microscopic hardness measurement.
利用GLEEBLE-2000对试验钢进行热模拟试验,并结合显微硬度测试,研究了一种Nb-Ti微合金钢热变形奥氏体的变形后冷却相变行为。
2.
The precipitation of carbonitrides in Nb-Ti microalloyed steels has been investigated by using a combined technique of thermal simulation and transmission electron microscopy(TEM).
利用热模拟和TEM技术研究了Nb-Ti微合金钢中微合金碳氮化物的析出行为,研究结果表明,高温奥氏体区析出的微合金碳氮化物数量随变形量的增大而增加,尺寸随着变形温度的升高稍有增大。
参考词条
补充资料:微合金钢
分子式:
CAS号:

性质:微合金化的高强度低合金钢。它是在普通软钢和普通高强度低合金钢基体化学成分中添加了微量合金元素(主要是强烈的碳化物形成元素,如Nb、V、Ti、A1等)的钢,合金元素的添加量不多于0.20%。添加微量合金元素后,使钢的一种或几种性能得到明显的变化。典型的微合金钢有15MnVN和06MnNb。微合金钢中含有一种或几种微合金元素,其含量大约在0.01%~0.20%之间。微合金钢由于屈服强度高、、韧性好、焊接性和耐大气腐蚀性好,可用于大型桥梁建筑,制造各类车辆的冲压构件、安全构件、抗疲劳零件及焊接件,它也是锅炉、高压容器、输油和输气管线,以及工业和民用建筑的理想材料。

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