风电铸件球墨铸铁材料的发展现状与趋势

Development Status and Trend of Ductile Iron Materials for Wind Power Castings

风电铸件球墨铸铁材料在风能行业中具有重要地位,其发展现状与趋势备受关注。球墨铸铁作为一种高强度、高韧性、耐腐蚀的材料,已经成为风电铸件的首选之一,其具有可铸性好、可加工性强以及良好的综合力学性能。影响风电铸件球墨铸铁材料性能的因素众多,本文总结了风电用球墨铸铁件的发展现状及生产中存在的主要问题,并着重分析了化学成分、微量元素和球化孕育法对风电用球墨铸铁材料组织与性能的影响,最后对风电用球墨铸铁件所面临的挑战与发展方向进行了展望。

Ductile iron materials for wind power castings play an important role in the wind energy industry,and their development status and trends have attracted much attention.As a material with high strength,high toughness and corrosion resistance,nodular cast iron has become one of the first choices for wind power castings,and its advantages include good castability,strong machinability and good comprehensive mechanical properties.There are many factors affecting the properties of ductile iron materials for wind power castings.This paper summarizes the development status of ductile iron castings for wind power and the main problems in production.The effects of chemical composition,trace elements and spheroidizing inoculation methods on the microstructure and properties of ductile iron materials for wind power are emphatically analysed.Finally,the challenges and future development directions of ductile iron castings for wind power are proposed.