Avtomaticheskaya Svarka (Automatic Welding), #2, 2022, pp. 11-15
Influence of the composition of charge components in flux-cored strips of C–Fe–Cr–Mo alloying system on chemical and structural heterogeneity of the deposited metal
O.P. Voronchuk, O.P. Zhudra, T.V. Kaida, V.O. Kochura, L.M. Kapitanchuk, L.M. Eremejeva
E.O. Paton Electric Welding Institute of the NAS of Ukraine.
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: email@example.com
It is generally known that wear resistance of the deposited layer in the above-mentioned alloys depends on the reinforcing phase
characteristics, its concentration and qualities of the matrix alloy. The methods of X-ray structural, metallographic analyses and
X-ray microanalysis of metal of 500Kh30M type deposited by flux-cored strips revealed the dependence of the concentration,
form, orientation, phase components and integral hardness of the carbides on the method of adding chromium as the main
carbide forming element, to the charge. It is found that the maximum concentration of the carbide phase of up to 80…90 % in
the deposited layer is achieved at addition of Cr3C2 chromium carbide to the flux-cored strip charge. Complex carbide systems
- (CrFe)7С3В are mainly present in the deposited metal for all the samples. Molybdenum does not form any separate carbide
compounds, but it is a component in carbides of (Cr2.5Fe4.2Мо0.2)С3 type. High concentration of the carbide component leads to
carbide washout, in connection with a considerable reduction of the matrix alloy. Optimal concentration of the carbide phase in
metal of 500Х30М type deposited with flux-cored strip, is achieved by adding a carbide forming element – chromium to the
electrode material charge in the proportion of 15…25 % chromium carbide and 75…85 % ferrochrome. 11 Ref., 3 Tabl, 6 Fig.
flux-cored strip, chromium carbide, ferrochome, carbides, hardness, microstructure, matrix, concentration
1. Ryabtsev, I.A., Senchenkov, I.K., Turyk, E.V. (2015) Surfacing. Materials, technologies, mathematical modeling. Gliwice, Wydawnictwo Politechniki Śląskiej ??. https://doi.org/10.15407/tpwj2015.06.29
2. Ryabtsev, I.A. (2005) High-efficiency wide-layer surfacing
using electrode wires and strips (Review). The PatonWelding
J., 6, 36–41 [in Russian].
3. Pokhodnya, I.K., Shlepakov, V.N., Maksimov, S.Yu., Ryabtsev,
I.A. (2010) Research and developments of the E.O.
Paton Electric Welding Institute in the field of electric arc
welding and surfacing using flux-cored wire (Review). The
Paton Welding J., 12, 34–42.
4. Zhudra, A.P., Voronchuk, A.P. (2012) Cladding flux-cored
strips (Review). The PatonWelding J., 1, 34–38.
5. Kuskov, Yu.M., Bogajchuk, I.L., Chernyak, Ya.P., Evdokimov,
A.I. (2013) Electroslag surfacing of parts, made of
high-chrome cast iron, using cast iron shot. The Paton Welding
J., 8, 46–48.
6. Kuskov, Yu.M., Evdokimov, A.I. (2014) Electroslag surfacing
of wear-resistant alloyed cast irons. Uprochniayushchie
Tekhnologii i Pokrytiya, 10, 21–24 [in Russian].
7. Livshits, L.S., Grinberg, N.A., Kurkumelli, E.G. (1969)
Principles of alloying of deposited metal. Moscow, Mashinostroenie
8. Kudinov, V.D., Filimonov, B.V., Shevnov, S.A., Netesa, I.V.
(1985) Surfacing with composite alloy of parts of metallurgical
equipment. Avtomatich. Svarka, 5, 48–50 [in Russian].
9. Voronchuk, A.P. (2009) Effect of concentration of hard particles
on gas-abrasive wear resistance of composite alloy. The
Paton Welding J., 8, 43-44.
10. Zhudra, A.P., Voronchuk, A.P., Petrov, A.V., Kochura, V.O.
(2012) Technology, equipment and materials for manufacture
of sheet lining elements. Svarochn. Proizvodstvo, 11, 40–43
11. (1973) Powder Diffraction File Search Manual. Alphabetical
Listing Inorganic. Publication SMA-23, USA.
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