The Inlfuence Of Situ Sintering The Bionic Unit Body On Friction And Wear Properties

On the basis of previous research,biomimetic coupling unit body by laser meltingand biomimetic coupling unit body by laser cladding all can obviously increase thewear-resisting performance of the materials.Compared with the untreated sample,thebionic sample can reduce the wear loss of materials in the army effectively,extend theservice life.But limited by the characteristics of this process method,these twomethods of preparation of biomimetic coupling unit cell can not get the depth of thedeep,thus limiting the service life of materials to further improve.And biomimetic cellbody of laser melting and laser cladding the bionic unit body with the different depthof unit cell showed a different microstructure and properties.In this paper in situsintering method of preparation of biomimetic coupling unit body not only can beprepared a sufficient depth of the unit, all parts of the microstructure and properties ofits cell body is the same.Therefore,using the method of in situ sintering of WC ceramic particles and theCu powder mixed into the vermicular graphite cast iron substrate surface,formed byCu-coated WC wear-resistant structural unit,constitute a bionic surface,in order toimprove the wear resistance of materials,and further extend the service life ofmaterials.The same method of in situ sintering Cu and graphite into the45#steelsubstrate surface,the formation of biomimetic coupling unit,constitute the bionicsurface.Investigated graphite as lubrication soft,can play in the process of friction andwear of the45#steel self-lubricating effect, thereby delaying the wearprocess,reducing wear and tear peeling and improve the role of the service life of45#steel.