alumina/titania chromia/titania - VeMet

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• Bondcoat• Thicker (=>150um)• Other types (Inconel 625)• Other Process (HVOF, combination of HVOF+Plasma)• Disadvantages• Increase of costs• Increase of lead time• Parameter optimalization
• Current:Directly effects temperature,and has some effect onvelocity,• Voltageis reliant on total gas volumeand gas conductivity,• Primary Gas:Directly effects velocity andhas some effect on temp.,• Secondary gas:Directly effects temperatureand has some effect onvelocity,• Injection Angle:Effects dwell time and heattransfer• Cooling water:Flow and temperature effectsenergy removed from thesystem. Quality can effecthardware life,• Carrier Gas:Controls the depth ofpenetration into theflame/plasma by the powderstream.
Page 2: • Wear in general has a yearly lo
Page 5 and 6: Coating Process B.C. T.C. Service E
Page 7 and 8: DRY ABRASION TESTWET PARTICLE ABRAS
Page 9 and 10: • Contact force: Actual cylinder
Page 11 and 12: Mpa80Bondstrength according to ASTM
Page 13 and 14: • Tested samples Alumina/Titania
Page 15 and 16: • Porosity is determined usinga p
Page 17 and 18: Coating Code Thickness Process Subs
Page 19 and 20: Hard chromium (G1) has anOCP of -34
Page 21 and 22: Mineral oil and water glycolfluids
Page 23 and 24: • Different surface profiles with
Page 25 and 26: • Profile is function of way of m
Page 27: Electro polymerization (monomer > p
Page 31 and 32: Electrochemical Potential[V] vs. sa
Page 33 and 34: • Under corrosion in the bottom z
Page 35 and 36: • Dissolving of Alumina outof Alu
Page 37 and 38: • Blistering due to under corrosi

alumina/titania chromia/titania - VeMet

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