Modifying of the Surface of Products from Cast Iron as the Element of Production Modernization

Abstract:

The way of solving the problem of surface wear of products from cast iron due to development of technological processes of its strengthening treatment is offered in this article. Receiving the hardened skins is reached by purposeful formation of the set structural condition of metal by methods of surface impregnation, i.e., modifying. Results of researches on thermochemical treatment of cast irons of grades EN-GJL-250, EN-JS1060 are presented The micro-structural analysis showed that with rising the saturation temperature and increasing the process duration the layer depth cartbonitration increases. Studying the samples for wear resistance carried out on stand ММ 295 showed that for grade EN-GJL-250 it increased 2,2 times, and for grade EN-JS1060 – 3 times as compared to the initial (non-modified) state. Experimental-industrial tests of products of cast iron (model accessory, parts of homogenizing pumps) after carbonitration permitted to state 2-4 times of its surface.

• Periodical: Solid State Phenomena (Volume 299)
• Pages: 588-593
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.299.588
• Online since: January 2020
• Authors: Nataliia V. Vodolazskaya*, Olga A. Sharaya
• Keywords: Hardness, Microstructure, Technology of Coating, Wear, Сast Iron

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