Theoretical evaluation of abrasive wear behavior of B4C/ FeCrC coating layer evaluated by a Taguchi approach

2020 ◽  
Vol 62 (7) ◽  
pp. 733-738 ◽  
Author(s):  
A. K. Gür ◽  
T. Yildiz ◽  
B. Icen
Keyword(s):  
Taguchi Method ◽  
Abrasive Wear ◽  
Arc Welding ◽  
Wear Behavior ◽  
Theoretical Evaluation ◽  
Wear Rates ◽  
Abrasive Wear Behavior ◽  
Coating Layers ◽  
Plasma Transferred Arc Welding ◽  
Aisi 430

Abstract In this study, B4C and FeCrC powders were alloyed on the surface of AISI 430 by a fusion process via plasma transferred arc welding. Mixtures of these powders at various amounts were used. The microstructure and wear behavior of the obtained coating layers were investigated. The wear behavior of the coating layers was planned using the Taguchi method. Abrasive wear mass loss results were optimized with the “smaller the better” control characteristic of the Taguchi method, and the results were analyzed graphically. The actual data obtained at the end of the study were formed by using an L16 (4 × 2, 2 × 2) mixed array, and the remaining wear rates were calculated with the help of theoretical formulas in order to obtain theoretical abrasive wear results.

Research on Abrasive Wear Resistance of Cemented Carbide Welding Coatings for Debris-Ejecting Blade of Driller

2010 ◽  
Vol 34-35 ◽  
pp. 1462-1466
Author(s):  
Ye Fa Tan ◽  
Xiao Long Wang ◽  
Guo Liang Jiang ◽  
Bin Cai ◽  
Hua Tan ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Abrasive Wear ◽  
Wear Mechanisms ◽  
Arc Welding ◽  
Wear Behavior ◽  
Cemented Carbide ◽  
Matrix Metal ◽  
Wear Rates ◽  
Welding Technology ◽  
Abrasive Wear Behavior

In order to improve the wear resistance of debris-ejecting blade of driller, cemented carbide welding coatings were prepared by arc-welding technology. The abrasive wear behavior and wear mechanisms of cemented carbide welding coatings were researched under both dry and water friction conditions. The research results show that the wear rates of the coatings increase with the increase of loads and sliding speeds. The influence of sliding speeds on wear rates of the coatings becomes intense as the increase of loads. The wear rates of the coatings under water friction conditions are bigger than those under dry friction conditions. The main wear mechanisms of the coatings are micro-cutting and multi-plastic deformation wear of matrix metal, and micro-cracking and brittle fracture as well as spalling of WC particles.

Study on Abrasive Wear Behavior and Mechanisms of 7Cr7Mo2V2Si Steel as Drilling Tool Materials

2011 ◽  
Vol 239-242 ◽  
pp. 2986-2992
Author(s):  
Ye Fa Tan ◽  
Bin Cai ◽  
Xiao Long Wang ◽  
Guo Liang Jiang ◽  
Chun Hua Zhou
Keyword(s):  
Abrasive Wear ◽  
Wear Behavior ◽  
Normal Load ◽  
Fine Powder ◽  
Corrosive Wear ◽  
Wear Loss ◽  
Drilling Tool ◽  
Sliding Speed ◽  
Wear Rates ◽  
Abrasive Wear Behavior

In order to search for new wear resistant materials used as drilling tools and improve the service life and drilling efficiency, the 7Cr7Mo2V2Si steel was prepared and its abrasive wear behavior and mechanisms were studied under both dry and water wear conditions. The research results show that the wear losses of the 7Cr7Mo2V2Si steel increase with the increase of normal load and sliding speed at both of dry and water wear conditions. The wear losses become greatly increase at high sliding speed and heavy normal load wear conditions. The wear rates of the 7Cr7Mo2V2Si steel at water wear conditions are bigger than those at dry wear conditions. The existence of water will aggravate the wear loss of the steel because water can clean the tribo-interface by taking away the fine powder or debris, which may keep the corundum abrasives protruding and remaining sharp edge state to produce more serious two-body abrasive wear to the steel, and meanwhile the collaborative action of the friction stress and the corrosion may result in stress corrosive wear of the steel. The main wear mechanisms of the 7Cr7Mo2V2Si steel are micro-cutting wear, multi-plastic deformation wear at dry wear conditions and accompanied with stress corrosive wear at water wear conditions.

scholarly journals Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy

2020 ◽  
Vol 29 (54) ◽  
pp. e11616
Author(s):  
Oscar Fabián Higuera-Cobos ◽  
Carlos Mauricio Moreno-Téllez ◽  
Cristian Antonio Pedraza-Yepes
Keyword(s):  
Abrasive Wear ◽  
Elastic Limit ◽  
Wear Behavior ◽  
High Strength ◽  
Microstructural Characterization ◽  
Test Time ◽  
Wear Rates ◽  
Ni Alloy ◽  
Abrasive Wear Behavior ◽  
Wear Response

Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa after aging (precipitation hardening), while, without heat treatment, they present an elastic limit between 205 MPa and 690 MPa [1]. Therefore, the complexity of the microstructure is a determining factor in the mechanical behavior of this type of alloys. In this work we analyzed the effect of microstructural variations obtained by cooling with water and with air from three different solubilization temperatures (750 °C, 800 °C and 850 °C) during 1 h, with and without aging, on the abrasive wear behavior of the Cu-1.9Be-0.25(Co+Ni) alloy. The chemical and microstructural characterization was performed by Dispersive Energy X-Ray Fluorescence (EDXRF) and Scanning Electron Microscopy (SEM-EDS), respectively. Abrasive wear behavior was evaluated under the guidelines of ASTM G65-16. Procedure E was used in this study, and the applied parameters were: force against the specimen (130 N), wheel revolutions (1000 rpm), linear abrasion (718 m) and test time (5 min). All tests were done in duplicate, showing a significant improvement in the abrasive wear behavior of the alloy, compared to the material in supply condition (T6). The lowest wear rates (<0.3 g/min) and volumetric loss (<200 mm3) were obtained with the specimens in solubilized condition with water cooling and without aging. The wear coefficients for the specimens with the highest resistance to abrasive wear are less than Ks=7x10-3.

Vanadium Additions to a High-Cr White Iron and its Effects on the Abrasive Wear Behavior.

MRS Advances ◽  
2020 ◽  
Vol 5 (59-60) ◽  
pp. 3077-3089
Author(s):  
Alexeis Sánchez ◽  
Arnoldo Bedolla-Jacuinde ◽  
Francisco V. Guerra ◽  
I. Mejía
Keyword(s):  
Heat Treatment ◽  
Abrasive Wear ◽  
Volume Fraction ◽  
Wear Behavior ◽  
Wear Behaviour ◽  
White Iron ◽  
Heat Treated ◽  
Bulk Hardness ◽  
Abrasive Wear Behavior ◽  
Vanadium Carbides

AbstractFrom the present study, vanadium additions up to 6.4% were added to a 14%Cr-3%C white iron, and the effect on the microstructure, hardness and abrasive wear were analysed. The experimental irons were melted in an open induction furnace and cast into sand moulds to obtain bars of 18, 25, and 37 mm thickness. The alloys were characterized by optical and electronic microscopy, and X-ray diffraction. Bulk hardness was measured in the as-cast conditions and after a destabilization heat treatment at 900°C for 45 min. Abrasive wear resistance tests were undertaken for the different irons according to the ASTM G65 standard in both as-cast and heat-treated conditions under a load of 60 N for 1500 m. The results show that, vanadium additions caused a decrease in the carbon content in the alloy and that some carbon is also consumed by forming primary vanadium carbides; thus, decreasing the eutectic M7C3 carbide volume fraction (CVF) from 30% for the base iron to 20% for the iron with 6.4%V;but overall CVF content (M7C3 + VC) is constant at 30%. Wear behaviour was better for the heat-treated alloys and mainly for the 6.4%V iron. Such a behaviour is discussed in terms of the CVF, the amount of vanadium carbides, the amount of martensite/austenite in matrix and the amount of secondary carbides precipitated during the destabilization heat treatment.

scholarly journals Abrasive wear behavior of thermally sprayed diamond reinforced composite coating deposited with both oxy-acetylene and HVOF techniques

Wear ◽  
2009 ◽  
Vol 266 (9-10) ◽  
pp. 995-1002 ◽  
Author(s):  
K. Venkateswarlu ◽  
V. Rajinikanth ◽  
T. Naveen ◽  
Dhiraj Prasad Sinha ◽  
Atiquzzaman ◽  
...  
Keyword(s):  
Abrasive Wear ◽  
Composite Coating ◽  
Wear Behavior ◽  
Reinforced Composite ◽  
Abrasive Wear Behavior ◽  
Thermally Sprayed
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