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Used for tungsten carbide cutting tools on the TiCN hard coating

Function of thin and thick layer on the technology is very important, because they can improve or change the surface properties of any material.However, the film and the nature of two-dimensional buried interface and reliable analysis of these materials.

Metal cutting tools use carbide (WC - Co (rich cobalt tungsten carbide in the matrix), usually these carbide by CVD and PVD coating coated, in order to improve the surface hardness of the material, stiffness and abrasion resistance.The coating material is mainly transition metal nitrides and carbides, such as TiN, TiC, ZrN,.vn, TiCN, TiAlN.

In the application example, we collected the TiC on the WC - Co layer/N and Al2O3Layer of EDS analysis data.figure. 1 shows a focused ion beam (FIB) cross section on the edge of the cutting tool.After the top of the TiN coating for Al in turn2O3/ TiN/TiCN/TiN, and based on the material of WC - Co.useEDSSurface analysis characterization,We can distinguish between TiN, TiCN and TiN layer between the change of N elements (figure 2).In addition,brookeESPRIT analysis software can automatically stripping process strongly overlapped spectral peak peak of Ti and N (figure 4).

Contact the an expert Learn more about QUANTAX EDS for SEM
Figure 1: tungsten carbide cutting tools of different coatings on EDS and SE images, surface using focused ion beam (FIB) milling and polishing.
Figure 2: according to the distribution of Ti, C and N EDS figure, from left to right: TiN, TiCN/TiN and TiC.EDS can easily distinguish lighter elements (such as C and N) between the composition of the change.
Figure 3: superhard cutting tool in WC substrates and Co binder EDS figure.
Figure 4: using ESPRIT analysis software automatic solution of convolution and quantitative Ti and N.