Actual experience has shown that chromium liners have only one-third the wear of unplated liners. To obtain the best service results it is proposed that for non-supercharged engines, liners should be plated with thick chromium in stepped layers, and the piston grooves should be chromium plated on top and bottom lands. In the case of highly supercharged engines, chromium-molybdenum plated liners are recommended. This coating gives good resistance to electro-chemical corrosion and high temperatures as well as being able to stand up to short periods of lubrication failure. Large-bore engines burning heavy fuel should have a binary electrolytic layer of chromium-molybdenum. Although this type of plating is a little more expensive than conventional types, the deposite required is about half the thickness, and the overall effect including prolonged life should prove more economical than previous liners.

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  • Corporate Authors:

    Engineering, Chemical and Marine Press, Limited

    33-39 Bowling Green Lane
    London EC1P 1AH,   England 
  • Publication Date: 1972-2

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Filing Info

  • Accession Number: 00032662
  • Record Type: Publication
  • Source Agency: United States Merchant Marine Academy
  • Files: TRIS
  • Created Date: Apr 21 1973 12:00AM