铸造2025，Vol.74Issue(12)：1590-1596,7.
水冷铜模铸造对铜铅合金显微组织与摩擦磨损性能的影响
Effect of Water-Cooled Copper Mold Casting on Microstructure and Friction-Wear Properties of Copper-Lead Alloy
摘要
Abstract
ZCuSb3Ni3Zn3Pb20P copper-lead alloy was casted using water-cooled copper molds.The microstructure,hardness,and tribological properties at different positions of the ingot were studied.The results showed that no significant specific gravity segregation was observed,but differences in cooling rates caused uneven microstructure and mechanical properties.In the lower ingot,finely dispersed Pb-rich phases between dendrites resulted in higher hardness(HB76.4)but poor wear resistance(specific wear rate:81.978×10-5 mm3·N-1·m-1)due to insufficient lubrication.In the upper ingot,coarse spherical Pb-rich phases formed a stable lubricating film,leading to lower hardness(≈HB67.9)but superior wear resistance(specific wear rate:4.281×10-5 mm3·N-1·m-1),with a more stable friction coefficient.关键词
铜铅合金/水冷铜模铸造/显微组织/摩擦学性能Key words
copper-lead alloy/water-cooled copper mold casting/microstructure/tribological property分类
矿业与冶金引用本文复制引用
茄菊红,贾丽,徐超军,谢峰,刘雪,杨立新,刘小辉,王帅星..水冷铜模铸造对铜铅合金显微组织与摩擦磨损性能的影响[J].铸造,2025,74(12):1590-1596,7.基金项目
国家自然科学基金(52461020). （52461020）
