铸造2026，Vol.75Issue(4)：336-342,7.DOI:10.27014/j.cnki.zhuzao.2026.0048
包覆层浇注温度对铝/钢液-固复合组织及性能的影响
Effect of Coating Pouring Temperature on the Microstructure and Properties of Aluminum/Steel Liquid Solid Composite
摘要
Abstract
Using 304 stainless steel and pure aluminum as test materials,the aluminum/steel bimetallic composite materials were prepared via liquid-solid composite casting technology and a self-designed pouring system.The surface of 304 stainless steel was pretreated by nickel plating,and the effects of pure aluminum pouring temperatures(750,780,810℃)on microstructure,composition,and mechanical properties of aluminum/steel composite interface were studied using SEM and XRD.The results show that the microstructure of the diffusion layer of aluminum/nickel plated steel is significantly improved,compared with that before nickel plating.The nickel coating can improve the surface activity and wettability of aluminum liquid on the steel substrate.As the pouring temperature increases,the shear strength and thickness of diffusion layer increase.The aluminum/steel has the best bonding quality at pouring temperature of 810℃,with no defects such as inclusions or pores in the diffusion layer,and the average shear strength of the composite interface is up to 25.78 MPa.The microhardness of the aluminum/steel diffusion layer increases first and then decreases with the increase of pouring temperature.At the pouring temperature of 780℃,the microhardness of the diffusion layer reaches a maximum of about HV1 000.关键词
铝/钢双金属/液-固复合/浇注温度/镀镍Key words
aluminum/steel bimetallic/liquid-solid composite/pouring temperature/nickel plating分类
矿业与冶金引用本文复制引用
杨成,李晓,姜荣恒,高思明,张达..包覆层浇注温度对铝/钢液-固复合组织及性能的影响[J].铸造,2026,75(4):336-342,7.基金项目
黑龙江省省属高等学校基本科研业务费项目(2022-KYYWF-0584). （2022-KYYWF-0584）
