ASSESSMENT OF RANGES OF POSSIBLE CHANGE OF TEMPORARY RESISTANCE OF CAST IRON WITH LAMELLAR AND FLAKED GRAPHITE ON THEIR HARDNESS
https://doi.org/10.21122/1683-6065-2017-2-40-45
Abstract
The analysis of ranges of possible change of temporary resistance of sB of castings from ductile and gray cast iron is carried out. The analytical description of ranges of change of sВ depending on casting BH hardness is developed. It is shown that the range of change of sВ of pig-iron castings, wider in comparison with steel, with the measured hardness of BH is caused variations of forms and the amount of graphite inclusions at the considered classes of cast iron and influence of thickness of a wall of casting from gray cast iron on dependence of sВ (HB). The result is intended for determination of the guaranteed casting size sВ without her destruction, when there is no information on sВ of check test pieces.
About the Author
S. G. Sandomirskii
Joint Institute of Mechanical Engineering of National Academy of Sciences of Belarus
Belarus
Minsk, 12, Akademicheskaya str.
Belarus
Minsk, 12, Akademicheskaya str.
References
1. Bolohvitinov N. F., Bolohvitinova E. N. Atlas makro- i mikrostruktur metallov i splavov [The atlas macroand microstructures of metals and alloys]. Moscow, MAShGIZ Publ., 1959. 88 p.
2. Lahtin Ju. M., Leont’eva V. P. Materialovedenie: Uchebnik dlja mashinostroitel’nyh vuzov [Materials science: The textbook for machine-building higher education institutions]. Moscow, Mashinostroenie Publ., 1980, 493 p.
3. Girshovich N. G. Kristallizacija i svojstva chuguna v otlivkah [Crystallization and properties of cast iron in castings]. Moscow, Mashinostroenie Publ., 1966. 562 p.
4. Hudokormov D. N. Proizvodstvo otlivok iz chuguna [Production of castings from cast iron]. Minsk, Vyshjejshaja shkola Publ., 1987. 298 p.
5. Bershtejn M. L., Rahshtadt A. G. Metallovedenie i termicheskaja obrabotka stali [The metallurgical science and heat treatment became]. Moscow, Metallurgija Publ., 1991.
6. Sandomirskij S. G. Analiz svjazi kojercitivnoj sily s vremennym soprotivleniem uglerodistyh stalej [The analysis of communication of coercive force with a temporary resistance carbonaceous staly]. Stal’ = Steel, 2016, no. 9, pp. 62–65.
7. Voronkova L. V. Opredelenie prochnosti chuguna ul’trazvukovym metodom [Determination of durability of cast iron by an ultrasonic method]. Kontrol’. Diagnostika = Control. Diagnostics, 2011, no. 12, pp. 62–64.
Review
For citations:
Sandomirskii S.G. ASSESSMENT OF RANGES OF POSSIBLE CHANGE OF TEMPORARY RESISTANCE OF CAST IRON WITH LAMELLAR AND FLAKED GRAPHITE ON THEIR HARDNESS. Litiyo i Metallurgiya (FOUNDRY PRODUCTION AND METALLURGY). 2017;(2):40-45. (In Russ.) https://doi.org/10.21122/1683-6065-2017-2-40-45
Views:
1776
Email this article 