【摘要】 低合金高强度钢材曾经在我国的钢材发展历史上起到过非常重要的作用,在资源、能源、环境问题日益突出,炼钢、轧钢的技术水平和控制能力均得到大幅度提高的新形势下,钢材品种的升级成为当务之急。需要转变观念,改变依靠添加合金元素来获得理想性能的传统做法,转而通过轧制工艺和冷却工艺的优化来提高钢材性能,细晶粒钢和细晶+复相强化钢的成功开发证明这是一条可行之路。实现从低合金高强度(HSLA)到低成本高性能(HPLC)的转变将成为钢铁材料的一个发展方向。更多还原

【Abstract】 High strength low alloy(HSLA) steel has played an important role in the history of steel development.Under the new condition concerning problems of sources,energies and environment and remarkable improvement of technological level and controllability in steel making and steel rolling industry,upgrade of steel products becomes the first imperative.It is urgent to transfer conceptions from adding alloying elements to the optimization of rolling and cooling processing parameters to improve steel performance.Successful development of fine grained steel and grain refinement + multiphase strengthened steel justifies this idea.The transformation from HSLA steel to high performance low cost(HPLC) steel brings a new trend for steel development.更多还原