Phase composition and structure of atomized powders of a high-vanadium tungsten-molybdenum high-speed steel

1976 ◽  
Vol 15 (12) ◽  
pp. 903-905
Author(s):  
A. N. Popandopulo ◽  
L. N. Gerashchenko ◽  
Z. S. Bystrova ◽  
G. P. Anastasiadi
Keyword(s):  
Phase Composition ◽  
High Speed ◽  
High Speed Steel ◽  
Composition And Structure

Specifics of Microstructure and Phase Composition of High-Speed Steel R6M5

2013 ◽  
Vol 404 ◽  
pp. 20-24 ◽  
Author(s):  
Маzhyn Skakov ◽  
Bauyrzhan Rakhadilov ◽  
Gaukhar Karipbayeva
Keyword(s):  
Phase Composition ◽  
High Speed ◽  
Volume Fraction ◽  
Electron Backscatter Diffraction ◽  
High Speed Steel ◽  
Spherical Shape ◽  
Xrd Analysis ◽  
Steel R6m5 ◽  
Solid Carbide ◽  
Backscatter Diffraction

In this paper microstructure, morphology, elemental composition, phase composition and crystal structure of the sample steel R6M5 were investigate by using the methods of scanning electron microscopy, electron backscatter diffraction (EBSD) analysis and X-ray diffraction (XRD) analysis. Determined that the microstructure of steel R6M5 after hardening and three-time tempering consists of tempered martensite and solid carbide M6C and MC-type with spherical shape and a diameter of less than 3 μm. Detected that the volume fraction of each carbide amounted to 10.4±0.6% and 2.3±0.4% - for grey and bright carbides, respectively, and that the sizes of bright carbides particles in the microstructure of steel R6M5 are 0.4-4,5 μm, and the sizes of grey carbides particles are 0.5-1.1 μm. XRD analysis showed that the main carbides in the studied steel are carbides М6С and MC, which have complicated the FCC crystal lattice and the Fd3m spatial group. Determined that carbides are uniform and monocrystalline. ESBD analysis with the support of the XRD analysis showed that carbides spherical shape М6С fit to Fe3W3C composition.

Surface Modification of High-Speed Steel by Plasma Nitriding

2014 ◽  
Vol 709 ◽  
pp. 403-409 ◽  
Author(s):  
Bauyrzhan K. Rakhadilov ◽  
Mazhyn Skakov ◽  
Erlan Batyrbekov ◽  
Michael Scheffler
Keyword(s):  
Surface Layer ◽  
Phase Composition ◽  
Diffusion Layer ◽  
High Speed ◽  
Steel Surface ◽  
Plasma Nitriding ◽  
High Speed Steel ◽  
R6m5 Steel ◽  
Modified Layer ◽  
Surface Modified

The article investigates the changing in the structure and phase composition of the R6M5 high-speed steel surface layer after electrolytic-plasma nitriding. It is found that after electrolytic-plasma nitriding on the R6M5 steel surface, modified layer is formed, which consist from a diffusion layer. It was showed phase composition of difysion layer is changing depending on the nitriding. It is found that electrolytic-plasma nitriding lead to accelerated formation of the modified layer. It is determined that after electrolytic-plasma nitriding on the high-speed steel surface, modified layer is formed, consisting only of the diffusion layer.

Complex study of the phase composition of powdered stock for high-speed steel ROM2F3

1986 ◽  
Vol 25 (4) ◽  
pp. 303-305
Author(s):  
E. F. Yakovleva ◽  
Z. V. Barantseva ◽  
G. P. Bogomolova ◽  
V. L. Rodionov
Keyword(s):  
Phase Composition ◽  
High Speed ◽  
High Speed Steel ◽  
Complex Study

Effect of plasma beam irradiation on the microstructure and phase composition of high-speed steel R6M5

2020 ◽  
Vol 62 (11) ◽  
pp. 1138-1142
Author(s):  
Bauyrzhan Rakhadilov ◽  
Sherzod Kurbanbekov ◽  
Мazhyn Skakov ◽  
Wojciech Wieleba ◽  
Laila Zhurerova
Keyword(s):  
Phase Composition ◽  
High Speed ◽  
High Speed Steel ◽  
Steel R6m5 ◽  
Beam Irradiation ◽  
Plasma Beam

Composition and structure of products from high-speed steel impact-centrifugal spinning

1994 ◽  
Vol 32 (9-10) ◽  
pp. 749-755
Author(s):  
B. V. Khaenko ◽  
S. Ya. Golub ◽  
A. S. Fomichev ◽  
V. M. Vereshchak ◽  
L. D. Kulak
Keyword(s):  
High Speed ◽  
High Speed Steel ◽  
Composition And Structure ◽  
Centrifugal Spinning

scholarly journals Nitriding of High Speed Steel for Improvement of Tools Resistance

2022 ◽  
Author(s):  
L. Petrova
Keyword(s):  
Phase Composition ◽  
High Speed ◽  
High Speed Steel ◽  
Dispersion Hardening ◽  
Internal Nitriding ◽  
High Quality ◽  
Gas Nitriding ◽  
Diffusion Layers ◽  
Tungsten Nitrides ◽  
Nitride Zone

Abstract. The article is devoted to the study of the gas nitriding process, which makes it possible to obtain high-quality diffusion layers in high-speed steel M2 on the basis of an internal nitriding zone without a brittle nitride zone. The results of studies of the nitrided steel phase composition with a change of the saturating atmosphere during dilution of ammonia by hydrogen are presented. An increase in the resistance of the nitrided tool when drilling structural steel is shown, which is associated with the dispersion hardening of the internal nitriding zone with tungsten nitrides.

scholarly journals INVESTIGATION OF THE PROPERTIES OF NON-TUNGSTEN ELECTRO-SPARK COATINGS ON HIGH SPEED STEEL

2017 ◽  
Author(s):  
T. Penyashki ◽  
G. Kostadinov ◽  
M. Kandeva
Keyword(s):  
High Speed ◽  
Electrode Materials ◽  
High Speed Steel ◽  
Quality Characteristics ◽  
Hard Alloys ◽  
Technological Parameters ◽  
Wear Resistant Coatings ◽  
Composition And Structure ◽  
Electric Parameters ◽  
The Impact

In this work contactless local electro spark deposition (LESD), has been used to received wear resistant coatings from hard alloys based of ТiC, TiN, TiCN onto high speed steel HS6–5–2. The influence of the operating electric parameters and the electrode materials on the roughness, thickness, microhardness, phase composition, and on the structure of resulting coatings was studied. The impact of different electrode materials on the quality characteristics, the composition and structure of the resulting coatings has been found. The technological parameters of the LESD process for the formation of coatings with a predefined roughness, thickness, composition and structure has been determined.

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