Papers by Keyword: Tungsten Steel

Abstract: The optimal control of carbon content is one of the most important factors of excellent properties of tungsten steel material. The control of carbon content in tungsten steel materials could be started from several ways. This paper discusses the control of carbon content of tungsten steel material in sintering process. In this paper, that is the main measure to control the carbon content in the sintering process: The control of balance between hydrogen and carbon in pre sintering process; The control of balance between carbon and oxygen in vacuum sintering.

Abstract: The interaction between the tungsten steel surface and the polishing fluid & abrasive were discussed by AFM, SEM and XRD test in order to compare the chemical performances and mechanical action of the tungsten steel polishing in the paper. The chemical mechanical polishing (CMP) and the mechanical polishing (MP) was employed, respectively. The experiments results indicated that the CMP with a higher the materials removal ratio than by MP. Because a chemical corrosion effect implies that slurries with the highest removal rate have high dissolution rate, and have a lower the residual stress, however the surface took on wrinkling.