scholarly journals Structure and Abrasive Wear of Composite HSS M2/WC Coating

2012 ◽  
Vol 2012 ◽  
pp. 1-9
Author(s):  
S. F. Gnyusov ◽  
V. G. Durakov ◽  
S. Yu. Tarasov
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Size Distribution ◽  
Composite Coatings ◽  
Abrasive Wear Resistance ◽  
Metastable Austenite ◽  
Eutectic Carbides ◽  
Reinforcing Particles ◽  
Tungsten Monocarbide ◽  
Carbide Content

Features of phase-structure formation and abrasive wear resistance of composite coatings “WC-M2 steel” worn against tungsten monocarbide have been investigated. It was established that adding 20 wt.% WC to the deposited powder mixture leads to the increase in M6C carbide content. These carbides show a multimodal size distribution consisting of~5.9 μm eutectic carbides along the grain boundaries,~0.25 μm carbides dispersed inside the grains. Also a greater amount of metastable austenite (~88 vol.%) is found. The high abrasive wear resistance of these coatings is provided byγ→α′-martensitic transformation and multimodal size distribution of reinforcing particles.

Effect of Particular Combinations of Quenching, Tempering and Carburization on Abrasive Wear of Low-Carbon Manganese Steels with Metastable Austenite

2019 ◽  
Vol 945 ◽  
pp. 574-578 ◽  
Author(s):  
L.S. Malinov ◽  
I.E. Malysheva ◽  
E.S. Klimov ◽  
V.V. Kukhar ◽  
E.Y. Balalayeva
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Residual Austenite ◽  
Abrasive Wear Resistance ◽  
Low Carbon ◽  
Metastable Austenite ◽  
Carbon Manganese Steels ◽  
The Impact ◽  
Manganese Steels ◽  
Dynamic Ratio

The effect of quenching from 900°C (20 min exposure) and different tempering in the 250-650°C (for 1 hour) interval, as well as additionally preliminary carburization for 8 hours at 930°C, followed by a similar heat treatment on abrasive and shock-abrasive wear of low-carbon manganese (10-24%Mn) steels, phase composition and mechanical properties was studied. It was confirmed that an increase in the manganese reduces the abrasive wear resistance and increases the impact-abrasive wear resistance. The expediency of carburization of low-carbon manganese steels is shown in order to obtain the residual austenite in the structure which amount and stability must be optimized in relation to specific abrasive impact characterized by the dynamic ratio with taking into account the chemical composition.

scholarly journals Abrasive Wear Resistance of Cast Iron with Precipitates of Spheroidal VC Carbides

2012 ◽  
Vol 12 (2) ◽  
pp. 221-226 ◽  
Author(s):  
M. Kawalec ◽  
E. Olejnik
Keyword(s):  
Wear Resistance ◽  
Cast Iron ◽  
Abrasive Wear ◽  
Abrasion Resistance ◽  
Eutectic Composition ◽  
Cast Steel ◽  
Abrasive Wear Resistance ◽  
Resistant Steel ◽  
Eutectic Carbides ◽  
Resistance Tests

Abrasive Wear Resistance of Cast Iron with Precipitates of Spheroidal VC Carbides The paper presents the results of abrasive wear resistance tests carried out on high-vanadium cast iron with spheroidal VC carbides. The cast iron of eutectic composition was subjected to spheroidising treatment using magnesium master alloy. The tribological properties were examined for the base cast iron (W), for the cast iron subjected to spheroidising treatment (S) and for the abrasion-resistant steel (SH). Studies have shown that high-vanadium cast iron with both eutectic carbides and spheroidal carbides has the abrasion resistance twice as high as the abrasion-resistant cast steel. The spheroidisation of VC carbides did not change the abrasion resistance compared to the base high-vanadium grade.

Abrasive Wear Resistance of Plasma-Sprayed Glass-Composite Coatings

2001 ◽  
Vol 10 (4) ◽  
pp. 599-603 ◽  
Author(s):  
D.T. Gawne ◽  
Z. Qiu ◽  
Y. Bao ◽  
T. Zhang ◽  
K. Zhang
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Composite Coatings ◽  
Abrasive Wear Resistance ◽  
Glass Composite ◽  
Plasma Sprayed

The Use of Metastable Austenite to Increase the Wear Resistance of Steels of the Pearlite Class

2018 ◽  
Vol 284 ◽  
pp. 1163-1167
Author(s):  
Mikhail A. Filippov ◽  
G. Yagudin ◽  
V. Legchilo ◽  
M. Khadiyev ◽  
N. Ozerets ◽  
...  
Keyword(s):  
Wear Resistance ◽  
High Temperature ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Temperature Quenching ◽  
Metastable Austenite ◽  
Steel 110G13l ◽  
Alternative Materials ◽  
The Relationship ◽  
Cast Parts

The wide application of steel 110G13L for armor plates in mills and crushers makes it urgent to search for alternative materials with close or sufficient operational stability in conditions of shock abrasive wear. A promising path in this direction is the replacement of steel 110G13L with high-carbon pearlitic steels. The aim of this work is a comparative study of the relationship between the structure formed in the heat treatment process of the low-alloyed pearlite steels 70X2GSML and 150HNML and their abrasive wear resistance. Special attention was paid to the possibility of using metastable austenite as a structural component, which increases the abrasive wear resistance of pearlitic steels. It is established that the steel of the pearlite class 70X2GSML, after normalization from 850 °C and tempering at 550 °C, can be used for casting armor plates for ball and rod mills, as well as to cast parts subjected to machining and operating under abrasive conditions without significant impact loads. It is shown that an additional reserve for increasing the abrasive wear resistance of steels of the pearlite class - 70X2GSML and 150XNML - is high-temperature quenching with the formation of a metastable austenite in the structure. The maximum abrasion wear resistance is achieved after the high-temperature quenching of steels (1150 °C) in oil, which forms a martensitic structure with a metastable austenite in the amount of 20-70%, which, with wear, turns into martensite with a high friction hardening ability on the wear surface.

Heat Treatment of Carbon, High-Chromium Steels for Mud Pump Liners of Drill Rigs and Drilling Equipment

2017 ◽  
Vol 265 ◽  
pp. 811-814
Author(s):  
S.M. Nikiforova ◽  
M.A. Filippov ◽  
A.S. Zhilin
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
High Temperature ◽  
Abrasive Wear ◽  
Abrasive Wear Resistance ◽  
Metastable Austenite ◽  
Tempering Temperature ◽  
High Chromium ◽  
Chromium Steels ◽  
Hardening Heat Treatment

The application of hardening heat treatment process at high temperatures (1100-1170 °C) for high-chromium steels of martensitic-carbide class 95Kh18 and Kh12MFL has been studied. Metallic substrate consisted of high-carbon martensite and residual metastable austenite with some traces of carbide has been obtained. Experiments have shown the resulting structure gains high frictional hardening capacity upon the application of heat. Sufficient amount of cooling martensite can be traced in the analyzed steel after high-temperature quenching (cooling up to the temperature of-70°С). Being combined with residual metastable austenite, it provides the increase of abrasive wear resistance by 25% compared with high temperature annealing. The influence of tempering temperature on hardness and abrasive wear resistance of analyzed steels 95Kh18 and Kh12MFL has also been determined.

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