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Abrasive Wear Characteristics of Materials for Diesel Engine Cylinder Liner and Piston Ring  

Jang, Jeong-Hwan (Department of Mechanical and Precision Engineering, Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University)
Kim, Jung-Hoon (Research & Development Center, Doosan Engine)
Kim, Chang-Hee (Research & Development Center, Doosan Engine)
Moon, Young-Hoon (Department of Mechanical and Precision Engineering, Engineering Research Center for Net Shape and Die Manufacturing, Pusan National University)
Publication Information
Journal of the Korean Society for Heat Treatment / v.20, no.2, 2007 , pp. 72-77 More about this Journal
Abstract
Abrasive wear between piston ring face and cylinder liner is an extremely unpredictable and hard-to-reproduce phenomenon that significantly decreases engine performance. Wear by abrasion are forms of wear caused by contact between a particle and solid material. Abrasive wear is the loss of material by the passage of hard particles over a surface. From the pin-on-disk test, particle dent test and scuffing test, abrasive wear characteristics of diesel engine cylinder liner-piston ring have been investigated. Pin-on-disk test results indicate that abrasive wear resistance is not simply related to the hardness of materials, but is influenced also by the microstructure, temperature, lubricity and micro- fracture properties. In particle dent test, dent resistance stress decreases with increasing temperature. From the scuffing test by using pin-on-disk tester, scuffing mechanisms for the soft coating and hard coating were proposed and experimentally confirmed.
Keywords
Abrasive wear; Cylinder liner; Piston ring; Pin-on-Disk test; Scuffing; Friction coefficient;
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