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2020 №12 (06) DOI of Article
10.37434/as2020.12.07
2020 №12 (01)

Automatic Welding 2020 #12
Avtomaticheskaya Svarka (Automatic Welding), #12, 2020, pp. 52-57

Modernization of optical microscope and its use to obtain digital images of microstructure of deposited metal

A.A. Babinets, I.O. Riabtsev, I.P. Lentyugov
E.O. Paton Electric Welding Institute of the NAS of Ukraine. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: office@paton.kiev.ua

The article analyzes the methods of modernization of optical microscopes to obtain digital images and simplifies their subsequent analysis while conducting basic metallographic examinations of deposited metal specimens. Two main methods of modernization were considered: with the help of a camera, equipped with special adapters, which is attached to the tube of the microscope eyepiece and with the help of a video eyepiece, which is installed instead of a standard microscope eyepiece. The main advantages and disadvantages of each method were noted. Using MIM-7 metallographic microscope, Canon 650D camera, SIGETA MCMOS 3100 video eyepiece, as well as specimens of microsections with a deposited layer of semi-heat-resistant steel of C – Cr – Mo – W – V alloying system, comparative metallographic examinations were performed. It is shown that the use of a special video eyepiece SIGETA MCMOS 3100 allows obtaining better digital images of metal microstructures. As an illustration of the main advantages of the work, provided by the use of the equipment modernized in this way, the results of metallographic examination of metal, deposited by electric arc method using flux-cored wire PP-NP-120V3KhMF, were provided. It was experimentally established that the Toupview software, supplied with the eyepiece SIGETA MCMOS 3100, used in these examinations, allows easy processing of the obtained digital images, which greatly expands the capabilities of basic metallographic analysis. 10 Ref., 7 Fig.
Keywords: metallography, optical microscope, video eyepiece, arc surfacing, flux-cored wire, deposited metal, semi-heat-resistant steel


Received: 17.11.2020

References

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