绪言铌作为强化元素使用于高强度钢中,至今已有十多年了。在这期间,这个特异元素在世界上引起了人们的很大注意。在日本,铌已列为日本钢铁协会、钢铁基础共同研究会的课题。该公司自1963年生产含铌高强度钢以来,为了了解铌钢的特性,至今仍在进行铌的基础理论研究。向钢中添加铌,是将铌用作碳和氮的稳 Introduction Niobium has been used as a reinforcing element in high-strength steels for more than ten years. During this period, this particular element has aroused great attention in the world. In Japan, niobium has been the subject of the Japan Iron and Steel Association, Steel Foundation Research Association. Since 1963, the company has produced niobium-containing high-strength steels, basic theoretical research on niobium is still underway in order to understand the properties of niobium steels. Adding niobium to the steel is the use of niobium as a carbon and nitrogen stabilizer