空冷Mn系强-塑-韧性贝氏体钢长材系列及其产业化

以生产高性能、低成本、省资源、节能和环境友好材料为目标,通过低碳粒状贝氏体钢,仿晶界铁素体/粒状贝氏体复相钢和无碳贝氏体/马氏体复相钢等典型产品为例,叙述在引进成果的基础上,研究和应用微合金化、析出物纳米化等技术,解决实际生产中贝氏体钢长材组织细化和韧化的难题,建立和完善从冶炼、铸造、轧(锻)制到零件处理全过程的专用工艺,消除亚包晶钢的连铸裂纹等缺陷,防止性能不合格品,提高和稳定材料的强-塑-韧性,初步形成空冷Mn系贝氏体钢长材产品系列并实现产业化,已大批量供应交通、能源及军事工业等产业部门.

Air-cooled Mn Series Bainitic Long Steel Product and Its Industrialization

Aiming at producing high performance, low cost, resource-saving, energy-saving and environment-friendly materials,taking LCB , F/B , CFB/M as typical products, on the basis of introduced achievements, researchers of Special Steel Branch have studied and applied technologies, such as microalloying, nano-precipitation, etc. to solve the problems of bainitic steel long product structure's refinement and toughening in actual production. Through setting up and perfecting the exclusive industrial art of the whole process from melting, casting, rolling and forging to treatment of finished-parts , defects like cracks of hypoperitectic in continuous casting can be eliminated, inferior products can be prevented, materials' strength-plasticity-toughness can be improved and stabled. Air-cooled bainitic steel long products of Mn series have been industrialized and supplied massively for transportation , energy, military and other sectors.