RESEARCH OF THE REGULARITIES OF FORMATION, MORPHOLOGY AND CHEMICAL COMPOSITION OF THE EXCESS PHASE IN CAST HIGH-MANGANESE STEEL
https://doi.org/10.17073/0368-0797-2016-7-491-496
Abstract
The article reviews the regularities of formation of the excess phase in the cast high-manganese steel in a wide range of cooling rates. It was found that this phase can stand out both along grain boundaries and within them and it can be represented by phosphide eutectic and by secondary carbides. At low cooling rates of the casting the phosphide eutectic and a small amount of secondary carbides are mainly formed, moreover, the excess phase with mixed morphology is also formed. It consists of eutectic carbides and secondary carbides with coherent boundaries between them. With increasing of cooling speed the excess phase is allocated predominantly in the form of secondary carbides, wherein there is a decrease in its size. Influence of cooling speed of a casting on the chemical composition of the excess phase also was studied. It was determined that due to increasing the cooling rate the amount of manganese in the formed secondary carbides decreases. The ratio of iron to manganese in the standing out phosphide eutectic does not depend from the cooling rate and is virtually unchanged.
About the Authors
K. N. Vdovin
Magnitogorsk State Technical University named after G.I. Nosov, Magnitogorsk, Russia
Russian Federation
Russian Federation
Sci. (Eng.), Professor, Head of the Chair “Materials Science and Foundry”
D. A. Gorlenko
Magnitogorsk State Technical University named after G.I. Nosov, Magnitogorsk, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assistant of the Chair “Materials Science and Foundary”
N. A. Feoktistov
Magnitogorsk State Technical University named after G.I. Nosov, Magnitogorsk, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Lecturer of the Chair “Mate rials Science and Foundary”
References
1. Davydov N.G., Blagikh B.M., Bigeev A.M. K voprosu povysheniya kachestva otlivok iz vysokomargantsevoi stali 110G13L [On the issue of quality improvement of castings from 110G13L high-manganese steel]. Tomsk: TGU, 1972, 139 p. (In Russ.).
2. Davydov N.G. Vysokomargantsevaya stal’ [High-manganese steel]. Moscow: Metallurgiya, 1979, 176 p. (In Russ.).
3. Vdovin K.N., Feoktistov N.A., Sinitskii E.V., Gorlenko D.A., Durov N.A. High- manganese steel smelting in electric arc furnace. Technology. Report 1. Izvestiya VUZov. Chernaya metallurgiya = Izvestiya. Ferrous Metallurgy. 2015, vol. 58, no. 10, pp. 735–739. (In Russ.).
4. Vlasov V.I., Komolova E.F. Litaya vysokomargantsovistaya stal’ G13L [Cast 110G13L high-manganese steel]. Moscow: Mashgiz, 1963, 195 p. (In Russ.).
5. Ten E.B., Bazlova T.A., Likholobov E.Yu. Eff ect of out-of-furnace treatment on the structure and mechanical properties of steel 110G13l. Metal Science and Heat Treatment. 2015, vol. 57, no. 3–4, pp. 146–150.
6. Sysoev A.M., Bakhmet’ev V.V., Kolokol’tsev V.M. Refi ning and modifying of 110G13L steel by titanium-boron-calcium complex. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G.I. Nosova. 2008, no. 1, pp. 43–45. (In Russ.).
7. Ashok Kumar Srivastava, Karabi Das. Microstructural characterization of Hadfi eld austenitic manganese steel. Journal of Materials Science. 2008, vol. 43, Issue 16, pp. 5654–5658.
8. Ladyzhenskii B.N., Tunkov V.P. Vyplavka stali v mashinostroenii [Steel production in mechanical engineering]. Moscow: Mashgiz, 1963, 195 p. (In Russ.).
9. Sil’man, G.I. Alloys of the Fe-C-Mn system. Part 4. Special features of structure formation in manganese and high-manganese steels. Metal Science and Heat Treatment. 2006, vol. 48, no. 1–2, pp. 3–8.
10. Vdovin K.N., Gorlenko D.A., Nikitenko O.A., Feoktistov N.A. Investigation of the eff ect of cooling rate during crystallization on austenite grain size of the cast steel 110G13L. Mezhdunarodnyi nauchnoissledovatel’skii zhurnal. 2015, no. 10-2 (41), pp. 28–31. (In Russ.).
11. Bogachev I.N., Egolaev V.F. Struktura i svoistva zhelezomargantsevykh splavov [Structure and properties of Fe-Mn alloys]. Moscow: Metallurgiya, 1973, 296 p. (In Russ.).
12. Novomeiskii Yu.D., Livshits V.I. Svoistva i primenenie vysokomargantsovistoi austenitnoi stali [Properties and application of highmanganese austenitic steel]. Tomsk: izd-vo Tomskogo universiteta, 1964, 159 p. (In Russ.).
13. Voronkov B.V., Kolokol’tsev V.M., Petrochenko E.V. Kompleksnolegirovannye belye iznosostoikie chuguny: Monografi ya [Complex alloyed white cast iron: Monograph]. Kolokol’tsev V.M. ed. Chelyabinsk: Pechatnyi salon “Izdatel’stvo REKPOL”, 2005, 178 p. (In Russ.).
14. Kolokol’tsev V.M., Mulyavko N.M., Vdovin K.N., Sinitskii E.V. Abrazivnaya iznosostoikost’ litykh metallov i splavov [Abrasive wear resistance of cast metals and alloys]. Kolokol’tsev V.M. ed. Magnitogorsk: MGTU, 2004, 228 p. (In Russ.).
15. Popov V.L., Kolubaev A.V. Analysis of the formation of surface layers in sliding mechanisms. Trenie i iznos. 1997, vol. 18, no. 6, pp. 818–826. (In Russ.).
Review
For citations:
Vdovin K.N., Gorlenko D.A., Feoktistov N.A. RESEARCH OF THE REGULARITIES OF FORMATION, MORPHOLOGY AND CHEMICAL COMPOSITION OF THE EXCESS PHASE IN CAST HIGH-MANGANESE STEEL. Izvestiya. Ferrous Metallurgy. 2016;59(7):491-496. (In Russ.) https://doi.org/10.17073/0368-0797-2016-7-491-496
Views:
650
Email this article 