Wear behavior of microwave-annealed and cryogenically treated thermal spray coatings: A comparative evaluation

2020 ◽  
Vol 33 ◽  
pp. 5348-5353
Author(s):  
Abhishek Babu ◽  
H.S. Arora ◽  
R.B. Nair ◽  
I. Chakraborty ◽  
A. Chauhan ◽  
...  
Keyword(s):  
Thermal Spray ◽  
Comparative Evaluation ◽  
Wear Behavior ◽  
Thermal Spray Coatings ◽  
Spray Coatings

Effect of thermal spray coatings on wear behavior of high tensile steel applicable for tiller blades

2017 ◽  
Vol 4 (2) ◽  
pp. 95-103 ◽  
Author(s):  
Amardeep S. Kang ◽  
Jasmaninder S. Grewal ◽  
Gurmeet S. Cheema
Keyword(s):  
Thermal Spray ◽  
Wear Behavior ◽  
Thermal Spray Coatings ◽  
Spray Coatings

Wear Behavior of Thermal Spray Coatings on Rotavator Blades

2011 ◽  
Vol 21 (2) ◽  
pp. 355-359 ◽  
Author(s):  
Amardeep Singh Kang ◽  
Jasmaninder Singh Grewal ◽  
Deepak Jain ◽  
Shivani Kang
Keyword(s):  
Thermal Spray ◽  
Wear Behavior ◽  
Thermal Spray Coatings ◽  
Spray Coatings

Sliding Wear Behavior as a Criterion for Replacement of Chromium Electroplate by Tungsten Carbide (WC) Thermal Spray Coatings in Aircraft Applications

2000 ◽  
Author(s):  
A.C. Savarimuthu ◽  
I. Megat ◽  
H.F. Taber ◽  
J.R. Shadley ◽  
E.F. Rybicki ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Thermal Spray ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Sem Analysis ◽  
Thermal Spray Coatings ◽  
Commercial Aircraft ◽  
Spray Coatings ◽  
Compressive Stresses ◽  
Fatigue Characteristics

Abstract Tungsten Carbide (WC) thermal spray coatings have had increased acceptance in commercial aircraft applications driven by the desire to replace chromium electroplate due to environmental and economic considerations [1]. In order to confidently replace chromium electroplate by WC thermal spray coatings, evaluation of wear and fatigue characteristics of the WC thermal spray coatings is necessary. For WC thermal spray coatings to replace chromium electroplate in aircraft applications, the coatings must demonstrate wear and fatigue characteristics as good as or better than those of chrome plating. Previous research in this area has shown that the fatigue life of the WC thermal spray coatings can be improved by inducing compressive stresses in the coating. This paper compares the wear characteristics of several types of WC thermal spray coatings with those of chromium electroplate in sliding wear tests following the "block-on-ring" procedures described in ASTM G77 standard. Wear results are interpreted in terms of coating residual stresses and in terms of X-ray diffraction and Scanning Electron Microscope (SEM) analysis.

Sliding Wear Behavior of Tungsten Carbide Thermal Spray Coatings for Replacement of Chromium Electroplate in Aircraft Applications

2001 ◽  
Vol 10 (3) ◽  
pp. 502-510 ◽  
Author(s):  
A.C. Savarimuthu ◽  
H.F. Taber ◽  
I. Megat ◽  
J.R. Shadley ◽  
E.F. Rybicki ◽  
...  
Keyword(s):  
Tungsten Carbide ◽  
Thermal Spray ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Thermal Spray Coatings ◽  
Spray Coatings

scholarly journals Sliding Wear of Conventional and Suspension Sprayed Nanocomposite WC-Co Coatings: An Invited Review

2021 ◽  
Author(s):  
R. Ahmed ◽  
O. Ali ◽  
C. C. Berndt ◽  
A. Fardan
Keyword(s):  
Wear Rate ◽  
Thermal Spray ◽  
Sliding Wear ◽  
Failure Modes ◽  
Thermal Spray Coatings ◽  
Annual Growth Rate ◽  
Total Energy Consumption ◽  
Wear Performance ◽  
Wear Rates ◽  
Spray Coatings

AbstractThe global thermal spray coatings market was valued at USD 10.1 billion in 2019 and is expected to grow at a compound annual growth rate of 3.9% from 2020 to 2027. Carbide coatings form an essential segment of this market and provide cost-effective and environmental friendly tribological solutions for applications in aerospace, industrial gas turbine, automotive, printing, oil and gas, steel, and pulp and paper industries. Almost 23% of the world’s total energy consumption originates from tribological contacts. Thermal spray WC-Co coatings provide excellent wear resistance for industrial applications in sliding and rolling contacts. Some of these applications in abrasive, sliding and erosive conditions include sink rolls in zinc pots, conveyor screws, pump housings, impeller shafts, aircraft flap tracks, cam followers and expansion joints. These coatings are considered as a replacement of the hazardous chrome plating for tribological applications. The microstructure of thermal spray coatings is however complex, and the wear mechanisms and wear rates vary significantly when compared to cemented WC-Co carbides or vapour deposition WC coatings. This paper provides an expert review of the tribological considerations that dictate the sliding wear performance of thermal spray WC-Co coatings. Structure–property relationships and failure modes are discussed to grasp the design aspects of WC-Co coatings for tribological applications. Recent developments of suspension sprayed nanocomposite coatings are compared with conventional coatings in terms of performance and failure mechanisms. The dependency of coating microstructure, binder material, carbide size, fracture toughness, post-treatment and hardness on sliding wear performance and test methodology is discussed. Semiempirical mathematical models of wear rate related to the influence of tribological test conditions and coating characteristics are analysed for sliding contacts. Finally, advances for numerical modelling of sliding wear rate are discussed.

Effects of Phosphorus and Carbon Contents on Amorphous Forming Ability in Fe-based Amorphous Alloys Used for Thermal Spray Coatings

2013 ◽  
Vol 44 (6) ◽  
pp. 2573-2580 ◽  
Author(s):  
Jeonghyeon Do ◽  
Seungmun Jung ◽  
Hyuk-Joong Lee ◽  
Byeong-Joo Lee ◽  
Gil-up Cha ◽  
...  
Keyword(s):  
Thermal Spray ◽  
Amorphous Alloys ◽  
Thermal Spray Coatings ◽  
Spray Coatings

Comprehensive Methods for Studying Microinhomogeneity in Thermal Spray Coatings with Amorphous-Crystalline Structure

1998 ◽  
Author(s):  
G. Grigorenko ◽  
A. Borisova
Keyword(s):  
Thermal Spray ◽  
Crystalline Structure ◽  
Structural Phase ◽  
Thermal Spraying ◽  
Integrated Approach ◽  
Thermal Spray Coatings ◽  
Chemical Heterogeneity ◽  
New Approach ◽  
X Ray ◽  
Spray Coatings

Abstract An integrated approach was developed for investigation of thermal spray coatings with the amorphous-crystalline structure. The new approach combines methods of metallography, differential thermal and X-ray phase analysis, scanning electron microscopy and X-ray microanalysis. This makes it possible to reveal structural, phase and chemical heterogeneity, determine the degree of amorphization of coatings, temperature and heat of crystallization of the amorphous phase during heating. The new integrated approach was used to study amorphous-crystalline coatings of the Ni-P, Fe-Ni-B and Fe-B systems produced by thermal spraying.

Sign in / Sign up

Export Citation Format

Share Document