| 摘要 |
A cylinder liner for receipt in an internal combustion engine cylinder block having a water cooling jacket surrounding a portion of the cylinder liner and method of construction thereof. The cylinder liner has a wall with an inner surface providing a cylinder bore extending along a central axis for reciprocation of a piston against an axial portion thereof and an outer surface opposite the axial portion. The outer surface has a hardened outer layer of purely martensitic microstructure for direct exposure to fluid in the water cooling jacket.
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