摘要
本研究通过改变β-SiC强化颗粒空间体积分数分布以及Cu基体晶粒尺寸大小分布,结合粉末冶金技术制备出碳化硅颗粒强化铜基双梯度纳米结构复合材料(Cu/SiC),实验结果表明Cu/SiC复合材料强化体与基体界面结合良好,材料的结构与性能呈明显的梯度变化特征,该复合材料的强化是主要由载荷转移、加工硬化、细晶强化三者共同作用的结果。
By changing the volume fraction distribution of β-SIC particles and the grain sizes of Cu metal matrix, the dual-gradient nanostructured copper matrix composites reinforced byβ-SIC particles were prepared through a powder metallurgy （PM） route. The experimental results show that the interfaces between SiC particles and Cu matrix are strongly bonded. The structures and properties of the as-received composites possess the obvious gradient variation characteristics. The strengthening of the composites is mainly derived from the load transferring, the work hardening and the gain refinement.
作者
杨雷
高求
刘鸿
陈何昊
肖寒月
程南璞
Yang Lei Gao Qiu Liu Hong Chen Hehao Xiao Hanyue Cheng Nanpu(Faculty of Materials and Energy, Southwest University, Chongqing 400718, China)
出处
《粉末冶金技术》
CAS
CSCD
北大核心
2016年第6期428-433,共6页
Powder Metallurgy Technology
基金
国家级大学生创新创业训练计划项目(201510635042)
国家自然科学基金(51171156)
