Effects of Temperature on Wear Behavior of a Plasma Sprayed Diesel Engine Cylinder

Tribological behaviors of internal plasma sprayed TiO 2 -based ceramic coating on engine cylinder under lubricated conditions

“…10(d)). This fact indicates the chemical stability of TAC, namely the tribo-chemical reaction film can not be formed under boundary lubrication, which the results are in accordance with observations by Ghorashi et al [11] and Jiang et al [38]. Also, the EDS results may help to explain why the temperature parameter has less impact on the COF of the ceramic coating (e.g., friction at 147.5°C Fig.…”

“…The researchers consider that severe contact wear between cylinder bore and piston ring is expected to occur mainly in the top dead center (TDC) position of the piston stroke where high load, low speed, high temperature and adverse environments occur. Table 1 summarizes the friction test parameters of the previous typical researches for investigating the tribological properties of thermal spraying coatings on engine cylinders [4,[11][12][13][14][15]. From the table, we can see that the sliding parameters are selected just to a limited extent.…”

“…Particularly, most laboratory experiments of the tribosystem were conducted under the condition of starved/ boundary lubrication [7][8][9][10][11]. The researchers consider that severe contact wear between cylinder bore and piston ring is expected to occur mainly in the top dead center (TDC) position of the piston stroke where high load, low speed, high temperature and adverse environments occur.…”