固态相变强化合金球铁取代40Cr制造连杆

Replacing 40Cr with Solid-State Phase Change Intensified Alloy Nodular Cast Iron in Manufacturing Connecting Level

介绍为取得更好的机械性能与经济效益，探讨采用经稀土元素“铈（Ｃｅ）”改性的铜钼合金球墨铸铁（经固态相变工艺调质强化后），取代４０Ｃｒ合金锻钢制造１３５型高速柴油机斜剖式连杆．

For manufacturing connecting level of 135 typed high speed diesel,the author proposes to replace 40 Cr forged steel with a new material-Cu Mo alloy -nodular cast iron by which a better mechanical performance and economic benefit will be ensued. As a pretreatment,this new material is modified by a rare earth element Ce at first,and then is tempered and intensified by solid-state phase change.