SINTERED METAL MATERIAL MATALLOGRAPHY SAMPLES BY VACUUM PRESSURE IMPREGNATION RESIN METHOD

The metallography samples fabricated by the vacuum pressure impregnation resin method are introduced in detail. The results show that perfect filled pores in the surface of the materials is achieved by the vacuum pressure impregnation method which protect the morphology,number and distribution,at the same time,the mechanical damages of coating,advanced and fragile materials are avoided. In addition,the sample is kept from contaminating during grinding and erosion.