Gordon England Surface Engineering Forum

Photomicrographs and Images
Microstructure of Thermal Spray Coatings



Effect of Metallographic
Preparation Technique 		Effect of Metallographic Preparation Technique image 2 Effect of Metallographic Preparation Technique image 4 Effect of Metallographic Preparation Technique image 6

HVOF Tungsten Carbide/
Cobalt Coatings		 Microstructure of HVOF 88/12 WC/Co Coating
88/12 WC/Co		 Microstructure of HVOF Fine 83/17 WC/Co Coating
83/17 WC/Co

Fused
Thermal Sprayed Coatings		 Microstructure of HIPped WC/NiCrBSi Coating
WC/NiCrBSi		 Microstructure of Fused WC/Co/NiCrBSi Coating
WC/Co/NiCrBSi

Plasma Sprayed
Alumina and Molybdenum 		Microstructure of Plasma Sprayed Alumina Coating
Alumina		 Microstructure of Plasma Sprayed Molybdenum Coating
Molybdenum

Bronze
Combustion Powder Spray		 Microstructure of Flame Sprayed Bronze Coating image 1 Microstructure of Flame Sprayed Bronze Coating image 2

Plasma Sprayed
Tungsten Carbide/Cobalt		 Microstructure of Plasma Sprayed 88/12 WC/Co Coating
88/12 WC/Co		 Microstructure of Plasma Sprayed 88/12 WC/Co Coating
88/12 WC/Co

HVOF
Tungsten Carbide/Cobalt Chromium		 Microstructure of HVOF Sprayed 86/10/4 WC/Co/Cr Coating Microstructure of HVOF Sprayed 86/10/4 WC/Co/Cr Coating

Plasma and Combustion Spray
80/20 NiCr Coatings
Process/Powder Size Comparison X250		 Microstructure - plasma fine powder NiCr coating X250 Microstructure - plasma coarse powder NiCr coating X250 Microstructure - flamespray coarse powder NiCr coating X250 Microstructure - flamespray fine powder NiCr coating X250

Plasma and Flame Spray
80/20 Nickel Chromium Coatings
Process/Powder Size X65		 Effect of Parameters on NiCr Coating Microstructure X65 Effect of Parameters on Coating Microstructure X65 Effect of Parameters on Nickel Chromium Microstructure X65 Effect of Powder size and processs on Coating Microstructure X65

Combustion Wire Spray
Coating Photomicrographs 		Flame Sprayed 13% Chromium Steel Coating
13Cr Steel		 Flame Sprayed Molybdenum Coating
Molybdenum		 Flame Sprayed Nickel Coating
Nickel

Arc Wire Spray
Coating Photomicrographs 		13% Chromium Steel Arc Sprayed Coating
13Cr Steel		 Psuedo Arc Sprayed Coating
Fe/Cu		 Nickel Aluminium Alloy Arc Sprayed Coating
Ni/Al

Plasma Spray
Ceramic Coating 		Ceramic Piston Ring Coating
Ceramic		 60/40 Alumina/Titania Plasma Coating
Alumina/Titania

Abradable Coating
Photomicrographs 		Aluminium Silicon/Polyester Abradable Plasma Spray Coating
AlSi/Polyester		 Nickel/Graphite Abradable Coating Combustion Powder Spray
Ni/Graphite		 Aluminium Silicon/Graphit Abradable Coating Plasma Spray
AlSi/Graphite

HVOF
WCCrNi Coating 		HVOF Tungsten carbide/Chromium Nickel Coating
HVOF WC/CrNi		 HVOF WC/CrNi
HVOF WC/CrNi

HVOF
Inconel 625 Coating 		HVOF Inconel 625 Coating Photomicrograph HVOF Inconel 625

HVOF
Hastelloy C Coating 		HVOF Hastelloy C

HVOF Chromium Carbide
Coating Photomicrographs 		HVOF Chromium Carbide/Nickel Chromium Coating HVOF Spray Chromium Carbide/Nickel Chromium

Arc Spray Coating
Photomicrographs 2		 Arc Sprayed 13% Cr Steel Coating
13Cr Steel		 Arc Sprayed High Chromium Carbon Iron Coating
high Cr Iron		 Arc Sprayed 13% Cr Steel
13Cr Steel

Plasma Sprayed
Tungsten Carbide
on CFRP Substrate		 Plasma Tungsten Carbide/Cobalt Coating on Carbon Fibre Reinforced Polymer Substrate Tungsten Carbide Coating on Carbon Fibre Reinforced Polymer Substrate

Plasma Spray
Chromium Oxide
Coating Microstructure 		Chromium Oxide Coating X65 Chrome Oxide Coating X125 Chromium Oxide Coating X250 Chrome Oxide Coating X500

Chrome Oxide
Coating Microstructure 2. 		Plasma Spray Chromium Oxide Coating with base coat of Hastelloy C Chromium Oxide Coating on Glass Fibre Reinforced Substrate

HVOF NiCrBSiCuMo
Self-Fluxing Alloy Coating		 HVOF NiCrBSiCuMo Self-Fuxing Alloy Coating (not fused) HVOF NiCrBSi Self-Fuxing Alloy Coating (not fused)

Rougues Gallery Fused WC/NiCrBSi Coating that went Wrong
barnicle.jpg		 Microstructure of Poor NiCr Coating
NiCr

Rougues Gallery 2 Microstructure of Poor Thermal Barrier Coating
TBC

Thermal Spray Coatings on Carbon and Glass
Fibre Reinforced Polymers		 Microstructure of Alumina Ceramic Coating on Carbon Fibre Reinforced Composite Microstructure of Chromium Oxide Ceramic Coating on Glass Fibre Reinforced Composite Chromium Oxide Ceramic Coating on Glass Fibre Reinforced Composite



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Photomicrographs: Plasma Sprayed Coatings * Plasma Sprayed Chromium Oxide Coatings * Plasma Sprayed Chromium Oxide Coatings 2 * Combustion Sprayed Coatings * HVOF WC/Co Thermal Spray Coatings * HVOF WC/CoCr Thermal Spray Coatings * HVOF WC/CrNi Thermal Spray Coatings * HVOF NiCrMo (625) Thermal Spray Coatings * HVOF NiCrMoWFe (Hastelloy C) Thermal Spray Coatings * HVOF Chromium Carbide Thermal Spray Coatings * Plasma Sprayed WC/Co Coatings * WC/NiCrBSi Thermal Spray Coatings * Thermal Spray Coatings Rogues Gallery * Thermal Spray Coatings Rogues Gallery 2 * Thermal Spray Coatings on Composite Substrates * Thermal Spray Coatings on Composite Substrates 2 * Effect of Metallographic Preparation Technique on Thermal Spray Coatings * Effect of Thermal Spray Coating Process and Powder Size 1 * Effect of Thermal Spray Process and Powder Size 2 * Thermal Spray Abradable Coatings * Combustion Wire Sprayed Coatings * Arc Sprayed Coatings * Arc Sprayed Coatings 2 * Thermal Spray Ceramic Coatings * HVOF Self-fluxing NiCrBSi Coating (not fused) *

Thermal Spray Processes: Combustion Wire Thermal Spray Process * Combustion Powder Thermal Spray Process * Arc Wire Thermal Spray Process * Plasma Thermal Spray Process * HVOF Thermal Spray Process * Detonation Thermal Spray Process * Plasma Flame Theory * Cold Spray Coating Process *

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