黑龙江科技学院学报2017，Vol.27Issue(6)：674-678,5.DOI:10.3969/j.issn.2095-7262.2017.06.020
Cu对球墨铸铁组织和力学性能的影响
Effect of Cu on microstructure and mechanical properties of ductile cast iron
宋良1
作者信息
- 1. 黑龙江科技大学 材料科学与工程学院,哈尔滨150022
- 折叠
摘要
Abstract
This paper is aiming at improving the mechanical properties of the ductile cast iron by pre-paring three-component ductile cast iron castings with different copper mass fraction using the lost foam casting method. The research involves observing microstructure of ductile iron sample using metallograph-ic microscope;analyzing the effect of Cu on the microstructure and mechanical properties of the ductile cast iron, combined with hardness and tensile test;and observing the fracture morphology of the specimen by scanning electron microscope and thereby exploring the internal relationship between graphite morphol-ogy and distribution of Cu and nodular cast iron. The results show that pearlite has a gradually increasing number depending on an increased copper mass fraction and the copper mass fraction of 0 . 8% gives duc-tile iron sample a better graphite morphology, and a higher plasticity, hardness, strength and mechanical property.关键词
球墨铸铁/Cu/显微组织/力学性能Key words
ductile cast iron/Cu/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
宋良..Cu对球墨铸铁组织和力学性能的影响[J].黑龙江科技学院学报,2017,27(6):674-678,5.
