Wear and corrosion behaviour of tungsten carbide based coatings with different metallic binder

2017 ◽  
Author(s):  
Z. Kamdi ◽  
M. N. M. Apandi ◽  
M. D. Ibrahim
Keyword(s):  
Tungsten Carbide ◽  
Corrosion Behaviour ◽  
Metallic Binder ◽  
Wear And Corrosion

scholarly journals Effect of Current Density and Bath Temperature to The Corrosion and Wear Behaviour of Tungsten Carbide - Nickel Electrodeposition Coating

2021 ◽  
Vol 2129 (1) ◽  
pp. 012099
Author(s):  
Natasha Alina Hamidi ◽  
Z Kamdi ◽  
A R Ainuddin ◽  
R Hussin ◽  
S A Ibrahim
Keyword(s):  
Tungsten Carbide ◽  
Current Density ◽  
Corrosion Behaviour ◽  
Bath Temperature ◽  
Corrosion And Wear ◽  
Metal Coating ◽  
Wear Testing ◽  
Wear Behaviour ◽  
Deposition Parameter ◽  
Wear And Corrosion

Abstract The composite (ceramic-metal) coating has become a desired coating due to its higher wear and corrosion behaviour compares to metal coating only. This study focuses on the effect of the deposition parameter which is the current density and bath temperature on the corrosion and wear behaviour of the coating. As the current density and temperature will affect the movement of the electron during deposition, it is important to evaluate its effect on the coating thickness and its wear and corrosion performance. The mild steel was used as the substrate and nickel-tungsten carbide (Ni-WC) as the coating. Watts’s bath was used as an electrolyte with the addition of 25 g/l WC. 0.2 A/cm2 and 0.5 A/cm2 has been chosen as the current density while 30 °C and 50 °C as their temperature. The coating was characterised using a scanning electron microscope (SEM) and x-ray diffractometer (XRD). Immersion test and weight loss test was used to evaluate the corrosion and wear behaviour respectively. The 3 g/l silicon carbide was used as abrasive materials in the wear testing. Vickers micro-hardness tester was used for hardness property evaluation. It is found that higher current density and higher bath temperature results in lower corrosion and wear rate which shows higher resistance.

Wear and corrosion behaviour of plasma nitrided EN353 steel for automotive application

2020 ◽  
Author(s):  
S. Lakshmi Sankar ◽  
Arun Kumar Gopal ◽  
P. Kuppusami ◽  
A. Amala Mithin Minther Singh ◽  
M. Prabhu ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Automotive Application ◽  
Wear And Corrosion

Microstructure and Properties of WC-CO-Cr Coatings

1996 ◽  
Author(s):  
L.-M. Berger ◽  
P. Vuoristo ◽  
T. Mäntylä ◽  
W. Kunert ◽  
W. Lengauer ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Corrosion Resistance ◽  
Practical Importance ◽  
Wear Test ◽  
Wear Behaviour ◽  
Metallic Binder ◽  
Microstructure And Properties ◽  
Wear And Corrosion ◽  
Number Of Publications ◽  
Wear And Corrosion Resistance

Abstract WC-Co-Cr represents an important composition for hardmetal-like coatings which is appHed when simuhaneous wear and corrosion resistance is required. In this paper five commercially available spray powders obtained by various production techniques (sintered and crushed as well as agglomerated and plasma-densified) of the composition WC-10%Co- 4%Cr have been thoroughly characterized and were sprayed by DCS, HVOF (CDS process) and APS. The microstructures of the coatings were characterized and their wear behaviour was investigated by means of an abrasion wear test. For the best of these powders the wear resistance was nearly equal for the DGS and HVOF coatings. Other powders show significant differences with respect to their processabilities in these spray processes. APS coatings from all powders, obtained with an Ar/H2 plasma showed inferior microstructures and significant lower wear resistance. The spray powder compositions, grain sizes and structures were found to determine the processability of the powders and the microstructure and properties of the coatings. COMPOSITE MATERIALS of the type hard phase - metallic binder with WC and CoCr as constituents are widely used for the preparation of hardmetal-like coatings. The chromium addition to the metallic binder is thought to improve its corrosion resistance in comparison with pure WC-Co. This has led to many applications of WC-CoCr coatings where simultaneous wear and corrosion resistance is required. Despite of its significant practical importance only a limited number of publications is devoted to detailed questions of structure and properties of WC-CoCr coatings (1-3). In some comparative studies such coatings have been investigated together with WC-Co and Cr3C2-NiCr coatings (4-8). However, systematic investigations of spray powder compositions and morphologies as well as investigations of the influence of different thermal spray processes on coating structures and properties which have repeatedly been provided for WC-Co (for example (9, 10)) are missing for WC-CoCr. In this paper a short survey of literature on the phase relationships in the WC-CoCr system and the effect of chromium additions on the properties of sintered parts and thermally sprayed coatings compared to WC-Co is given. In the experimental part a systematic study of the influence of the preparation process on composition and morphology of commercially available WC-10%Co-4%Cr spray powders was provided. These powders have been sprayed by DGS, HVOF and APS and the microstructure and basic properties of the coatings have been studied.

Evaluation of Wear and Corrosion Behaviour of Hybrid Sintered Ti6Al4V Alloy

2019 ◽  
Vol 821 ◽  
pp. 321-326
Author(s):  
Olusoji Oluremi Ayodele ◽  
Mary Ajimegoh Awotunde ◽  
Mxolisi Brendon Shongwe ◽  
Adewale Oladapo Adegbenjo ◽  
Bukola J. Babalola ◽  
...  
Keyword(s):  
Corrosion Behaviour ◽  
Wear Test ◽  
Sintered Compact ◽  
Plasma Sintering ◽  
Wear And Corrosion ◽  
The Coefficient Of Friction ◽  
Spark Plasma ◽  
Worn Surface ◽  
Material Wear ◽  
Sintered Materials

Ti6Al4V alloy was consolidated by hybrid spark plasma sintering at a temperature of 1200 °C, pressure of 50 MPa, holding time of 5 min and heating rate of 100 °C/min. This resulted in the maximum value of sintered density. Microstructural evolutions of the sintered compact were analysed with SEM. Sliding wear test were accomplished at different sliding loads of 5, 8 and 10 N using ball on disc tribometer configuration with stainless steel as the counterface material. Wear debris obtained was found to contain mostly the sintered materials with minute traces of the counterface material. The coefficient of friction reaches the maximum with increase in applied load. Worn surface analyses revealed the wear mechanism was abrasive. The potentiodynamic polarisation of the sintered compact showed the sintered compact in 0.9 wt % NaCl solution exhibited more resistance to corrosion.

Wear and corrosion behaviour of high-chromium (14–30% Cr) cast iron alloys

2002 ◽  
Vol 128 (1-3) ◽  
pp. 250-255 ◽  
Author(s):  
E Zumelzu ◽  
I Goyos ◽  
C Cabezas ◽  
O Opitz ◽  
A Parada
Keyword(s):  
Cast Iron ◽  
Corrosion Behaviour ◽  
Iron Alloys ◽  
High Chromium ◽  
Wear And Corrosion

Effect of the strain-hardening on the wear and corrosion behaviour of a Fe-Mn-Al-C alloy

2012 ◽  
Vol 7 (2/3) ◽  
pp. 143
Author(s):  
Frederico A.P. Fernandes ◽  
Stênio C. Heck ◽  
George E. Totten ◽  
Carlos A. Picon ◽  
Luiz C. Casteletti
Keyword(s):  
Strain Hardening ◽  
Corrosion Behaviour ◽  
Wear And Corrosion
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