摘要
采用真空热压法制备铜基功能梯度材料,测量了梯度材料的硬度、电导率和密度。用MMU-5GA微机控制真空高温摩擦磨损试样机测试材料的摩擦磨损性能,并利用扫描电镜和XRD衍射仪等手段对功能梯度材料微观组织及磨痕形貌观察分析。结果表明,真空热压可以获得组织均匀致密的功能梯度材料,其基体连续整体分布,界面结合良好,存在扩散现象,并且球磨40h比球磨20h的试样具有更好的物理性能和摩擦磨损性能。
The copper-based FGMs were prepared by vacuum hot pressing,and the hardness,conductivity and density of the copper-based FGMs prepared were measured.Wear behavior was tested by high-temperature friction and wear sampler which was used in vacuum and controlled by MMU-5GA microcomputer.Microstructure and grinding crack morphology were analyzed by the JSM-5610LV scanning electron microscopy and XRD Diffractometer.The results show that functional gradient materials with sound and homogeneous structure can be obtained,and the matrix is distributed continuously with desirable bonding interface and metallurgical bonding layer.The FGMs samples exhibit the higher physical properties and friction and wear performance with ball milling for 40h,compared with the sample for 20 hours.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2014年第1期105-108,共4页
Special Casting & Nonferrous Alloys
基金
河南省重大科技专项资助项目(102105000007)
关键词
功能梯度材料
热压
微观组织
性能
Functionally Graded Materials
Hot Pressing
Microstructure
Properties
