Material Systems for Cylinder Bore Applications - Plasma Spray Technology

Correlation of microstructure and wear resistance of ferrous coatings fabricated by atmospheric plasma spraying

“…[3] Thin oxide films located between Fe splats, of the pin were measured after the wear test, and the volume which are believed to be formed by oxidation of the Fe splat loss of the disc and pin was calculated in accordance with surface exposed to atmosphere, and some spheroidal Fe the following Eqs. [1] and [2]: [12] precipitates are also found inside Fe oxides (Figures 6(a) disc volume loss ϭ 2R[r 2 sin Ϫ1 (D/2r) [1] and (d)). In the specimens, except the A0 and B specimens, coarse Al 2 O 3 -ZrO 2 oxides are revealed as dark-gray-colored Ϫ (D/4) (4r 2 Ϫ D 2 ) 1/2 ] particles in addition to Fe oxides.…”

“…[1,2,8] In the case of unprotected aluminum alloys, however, the Ferrous coatings fabricated by atmospheric plasma spraying compression and emission performances of a diesel engine have enhanced wear resistance because of the formation of are significantly deteriorated by the considerable wear Fe oxides when ferrous powders are oxidized during sprayagainst a piston. [1,2,3] As an alternative to solve this problem, ing in air. The oxides also demonstrate a self-lubricating gray cast iron liners are inserted into aluminum cylinder performance and play a role in reducing sliding wear.…”

“…Their microstructures, hardness, and wear ing attention. [1][2][3][4][5][6][7][8][9][10] resistance were investigated to understand the mechanism Plasma spraying is most widely applied in automotive involved in the formation of coatings and to elucidate the industries among thermal spraying methods because (1) it correlation of microstructures with wear properties of coatis less restricted in material selection; (2) it has higher spray ings and counterpart materials. rate and deposition efficiency than high velocity oxyfuel process, flame spraying, and electric arc spraying; ( wt pct Al 2 O 3 ϩ 40 wt pct ZrO 2 ) are also used in order to improve the wear resistance of the ferrous coatings.…”

Surface properties of CrN coated engine cylinders

“…The most effective way of increasing the percentage of useful work is to reduce the energy loss. Researches on material science to minimize frictional losses are on progress [1][2][3]. Coating or making the combustion chamber, cylinder surface, and other parts by ceramic materials has put forward the concept of ''adiabatic engines".…”

Thermisch gespritzte, keramische Zylinderlaufbahnen unter Misch‐/Grenzreibung

“…Ziel der außermotorischen Charakterisierung [3,4,5,6] von Goetze (Federal Mogul) [8] stellen gängige Werkstoffsysteme für Kolbenringe dar, wohingegen das Stoffsystem 71,5 (Ti,Mo)(C,N)+28,5 Ni (Ø= 79,5 mm; DANA Perfect Circle Sealed Power Europe) mit der Kennzeichnung SPE V2 TOP-PB nicht marktgängig ist. C; s= 24 km) Figure 5.…”