alumina/titania chromia/titania - VeMet

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• About 35 profile parameters are available• Ra, Rq,Rm,Rmax,Pc,Rk,Rvk,Mre etc.• Characterisation of surfaces is often done by Ra;however this is an average value!• Ra does not characterize the surface profile andconditions.• Graphically Ra is the area roughness and it’s averagecut line, with other words the integrate absolute valueover a certain measured length
• Different surface profiles with the same RA value• Different applications in relation with seals.• Fig. 1 Peaks• Fig. 2 Valleys• Fig. 3 Both• Ra is not the right parameter to define topography
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: Mineral oil and water glycolfluids
Page 25 and 26: • Profile is function of way of m
Page 27 and 28: Electro polymerization (monomer > p
Page 29 and 30: • Current:Directly effects temper
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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