THE COATING ON BASE TiC-Ni FORMED ON LOW CARBON STEEL BY THE COMBINEDMETHOD AND STUDY ITS STRUCTURAL-PHASE COMPOSITION AND PROPERTIES

Author(s):  
E.N. Goncharova ◽  
◽  
D.A. Romanov ◽  
V.E. Gromov ◽  
Y.F. Ivanov ◽  
...  
1993 ◽  
Vol 9 (2) ◽  
pp. 172-175 ◽  
Author(s):  
N. Pizúrová ◽  
J. Komurka ◽  
M. Svoboda ◽  
O. Schneeweiss

2020 ◽  
Vol 303 ◽  
pp. 59-66
Author(s):  
Konstantin V. Ivanov ◽  
Vladimir E. Ovcharenko

Using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) we studied the distribution of structural parameters, phase composition and alloying elements concentration across the coatings obtained by cladding of chromium and titanium carbides mixture on low-carbon steel. The beam of relativistic energy electrons extracted into the atmosphere was used to form the coatings. The homogeneity in the allying elements distribution is shown to be defined by the lifetime of the melt bath while the phase composition distribution depends on the thickness of the melt layer. Both above parameters are determined by the density of the entered energy.


2011 ◽  
Vol 26 (1) ◽  
pp. 144-146 ◽  
Author(s):  
O. Yu Efimov ◽  
Yu F. Ivanov ◽  
S. V. Konovalov ◽  
V. E. Gromov

2021 ◽  
Vol 1198 (1) ◽  
pp. 012009
Author(s):  
U L Mishigdorzhiyn ◽  
A S Milonov ◽  
P A Gulyashinov ◽  
N S Ulakhanov ◽  
A P Semenov

Abstract Multicomponent surface modification of carbon steels is of high interest in mechanical engineering due to its beneficial impact on machine components’ and structures’ surface properties. The present research was devoted to simulating the process of aluminides and borides formation on the surface of low-carbon steel during electron beam alloying and predict the phase composition of the obtained coatings. Computational thermodynamics and approximate calculation method were used to solve the problem mentioned above. Calculations were done in the temperature range between 200 and 2000 K at 10−3 Pa. It was discovered that the calculated and experimental data of the coating’s phase composition differs significantly. The only confirmed phase that was predicted by the calculations was sodium fluoride (NaF). It was established that NaF presence in the treatment paste was redundant for the electron beam alloying because of its low reactivity in a vacuum. XRD analysis revealed the following phases in the coating: Fe2B, Fe3C, and AlFe3.


2012 ◽  
Vol 727-728 ◽  
pp. 345-348
Author(s):  
G. de Vasconcelos ◽  
D.C. Campos ◽  
M.S.F. Lima ◽  
A.C. Oliveira ◽  
J.G.A.B. Simões ◽  
...  

In this work low carbon steel samples were coated by tungsten carbide (WC), and then the properties of the obtained coatings were evaluated, such as morphology, hardness, phase composition and dimension of the layer. The results indicate the formation of a new phase, composed of iron carbide in the base metal, a more dense coating has been obtained when the WC powder was sprayed directly on to the steel and then irradiated with the laser beam.


2016 ◽  
Vol 17 (4) ◽  
pp. 303-341 ◽  
Author(s):  
V. E. Gromov ◽  
Yu. F. Ivanov ◽  
E. G. Belov ◽  
V. B. Kosterev ◽  
D. A. Kosinov

2011 ◽  
Vol 117-119 ◽  
pp. 1121-1124 ◽  
Author(s):  
Xin Mei Li ◽  
Bing Liu ◽  
Xiao Feng Dong ◽  
Qing Yu ◽  
Qiao Yu Xu

Low carbon steel were coated by hot-dipping into a molten bath containing Al-2 wt%Mn, Al-9wt%Mn, Al-13wt%Mn, respectively. The phase composition, morphology and the adhesion of the aluminide layer were characterized by XRD, SEM, EDAX, OM and scratch tester. The results show that the coating layers is mainly composed of Al, FeAl3, Fe2Al5 and MnAl6 phase. The coatings consists of two-layers structure, i.e., topcoat Al-Mn alloy layer and tongue-like intermetallic compound, and the coating layer is about 800 μm thick. The adhesion of the Al-Mn alloy coatings were characterized by Lc value and were found to be about ~30N. The adhesion gradually decrease with the increase of the Mn contents in alloy coatings.


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