Determination of the Elastic Characteristics of Structural Components of Steels X210Cr12 and HSS6-5-2 by Atomic Force Microscopy
Abstract
Atomic force microscopy is used for comparative analysis of the elastic characteristics of the structural components of multiphase materials. Changes in the dynamic characteristics of the microcantile (amplitude and phase of oscillations, resonant frequency) are recorded in the dynamic mode of the atomic force microscope operation upon interaction of the probe tip with the sample surface. The phase contrast of polymorphic materials with a nanoscale resolution is thus recorded simultaneously with the visualization of the topography of the sample surface. Using the obtained data we determined the elastic characteristics of structural components and hardened layers of ledeburite steels X210Cr12 andHSS6-5-2. To assess the elastic characteristics of the modified layers a comparative analysis of the phase contrast was performed on the prepared surface of composite samples. The samples consisted of two halves and each of them contained a modified layer. After putting together the modified layers of the both parts the samples were tightly fastened and the joint was polished. The resulting transverse microsection provided simultaneous study of thin interface of two modified layers and substrate on both sides of the layers. Evaluation of the elastic characteristics of the structural components of steels, as well as thin surface layers showed that the pattern of the phase contrast distribution formed upon scanning the sample surface reflects the properties of dissimilar materials. The developed technique can be used in determination of the modulus of elasticity of hardened layers of small thickness and structural components as well.
About the Authors
I. A. Pankratov
Гомельский государственный технический университет имени П. О. Сухого
Russian Federation
Russian Federation
I. N. Stepankin
Гомельский государственный технический университет имени П. О. Сухого
Russian Federation
Russian Federation
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Review
For citations:
Pankratov I.A., Stepankin I.N. Determination of the Elastic Characteristics of Structural Components of Steels X210Cr12 and HSS6-5-2 by Atomic Force Microscopy. Industrial laboratory. Diagnostics of materials. 2017;83(7):40-43. (In Russ.)
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