Dual vacuum ultra pure melting nickel content of bearing steel, the main use of optical microscopy, scanning electron microscopy, xrd diffraction means, analysis of the organizational changes of different nickel content of test steel; the use of Rockwell hardness, tensile testing machine, impact tes

This document double-vacuum ultra-pure nickel smelleding capacity of different bearing steel, primarily using optical microscope, scanning electron microscopy, XRD diffraction, analysis of different tools such as nickel steel is tested the organizational change; the use of Rockwell hardness testing

This article in view of the double vacuum ultra pure smelting including the nickel quantity different bearing steel, mainly utilizes methods and so on light microscope, scanning electron microscope, XRD diffractometer, the analysis differently experiments the steel including the nickel quantity the

This for double vacuum super pure melting of with nickel volume different of bearing steel, main using optical microscope, and scan electronic microscope, and XRD diffraction instrument, means, analysis different with nickel volume test steel of organization changes; using Rockwell hardness meter, a