1·This paper introduces Nb microalloying technologies to produce HRB400 bar, which include steelmaking, continuous casting and rolling.
介绍采用铌微合金化生产hrb400钢筋的工艺技术，包括合适的冶炼、连铸和轧制工艺。
2·The mechanism that increases the wearability for microalloying of high manganese steels and the concerned processes is introduced in this paper.
对高锰钢微合金化提高耐磨性的机理及有关工艺作了详细介绍。
3·The number of effective IAF nuclei were inconsistent for different microalloying series, resulting the corresponding changes of the volume fraction of IAF in HAZ and strength and toughness of HAZ.
不同微合金化系列有效的IAF形核核心数量不同，导致HAZ组织中iaf体积分数和HAZ强韧性相应发生变化。