铸造技术2017，Vol.38Issue(8)：1808-1811,4.DOI:10.16410/j.issn1000-8365.2017.08.008
一种新型高强高塑性球墨铸铁的研究
Study on A New Type of High-Strength and High-Plasticity Ductile Iron
摘要
Abstract
The design of the alloy composition of ductile iron was introduced,and the preparation method of high-strength and high-plasticity ductile iron was described in detail.The results show that,adding alloying elements and trace elements and improving the spheroidization process,the spheroidizing rate of theductile iron can be improved and the graphite refined.Thus,the pearlite and ferrite in the structure get a reasonable match,and the strength and plasticity are enhanced simultaneously,which are much higher than the corresponding national standards.The tensile strength of the ductile iron reaches 750 MPa at room temperature,the yield strength reaches 560 MPa,and the elongation is more than 7.5％.关键词
球墨铸铁/合金成分/铸造工艺/高强高塑性Key words
ductile iron/alloy composition/casting process/high strength and high plasticity分类
矿业与冶金引用本文复制引用
王威明,黄为,任鹏禾,禹灿,许晓嫦..一种新型高强高塑性球墨铸铁的研究[J].铸造技术,2017,38(8):1808-1811,4.基金项目
长沙市重大科技专项资助项目(kq1601010) （kq1601010）
