ANALYSIS OF HEAT STRESSES OF THE PARTS OF THE CYLINDER-PISTON 
GROUP WITH HEAT-PROTECTIVE COATINGS IN AN INTERNAL-COMBUSTION ENGINE 

N. M. Chigrinova, O. O. Kuznechik, and V. V. Chigrinov

UDC 691.9.048.4

The process of heat exchange in the cylinder of an internal-combustion 
engine has been investigated and the heat stresses of the working 
surfaces of the piston and the cylinder head have been analyzed. A 
method for calculating the heat resistance, the strength, and the 
thickness of heat-protective coatings has been developed. Results 
of thermal-cycle testing of a piston with heat-resistant coatings, 
the properties of which were calculated by the method proposed, are 
presented.

Institute of Powder Metallurgy, National Academy 
of Sciences of Belarus, 41 Platonov Str., Minsk, 220071, Belarus; 
email: chigrin@wpci.ac.by. Translated from Inzhenerno-Fizicheskii 
Zhurnal, Vol. 77, No. 3, pp. 93-102, May-June, 2004. Original 
article submitted February 28, 2003.