铸造2026，Vol.75Issue(1)：34-40,7.DOI:10.27014/j.cnki.zhuzao.2026.0006
Ni和Mn元素对等温淬火球墨铸铁组织、性能及低温冲击韧性的影响
Effects of Ni and Mn Elements on Micro structure,Properties and Low Temperature Impact Toughness of Austempered Ductile Iron
摘要
Abstract
In this work,the effects of Ni(0-1.0％)and Mn(0.1％-0.3％)content on the microstructure and mechanical properties of austempered ductile iron(ADI)were studied.The results show that with the increase of Ni and Mn contents,the average size of graphite spheres in ADI decreases,the spheroidization increases first and then decreases,and the volume fraction of austenite phase in ADI matrix increases.When the addition amounts of Ni and Mn elements are 0.7％and 0.2％,respectively,the comprehensive mechanical property of ADI is the best.The tensile strength is 1 007 MPa,the elongation is 9.2％,and the Charpy impact test absorption energy reaches a maximum of 6.1 J at-40℃.关键词
等温淬火球墨铸铁/奥氏体/力学性能/低温冲击韧性Key words
austempered ductile iron/austenite/mechanical properties/low temperature impact toughness分类
矿业与冶金引用本文复制引用
张亚军,周张松,马金哲,李广龙,曲迎东,张伟..Ni和Mn元素对等温淬火球墨铸铁组织、性能及低温冲击韧性的影响[J].铸造,2026,75(1):34-40,7.基金项目
辽宁省高校基本科研项目(LJ212410142112). （LJ212410142112）
