| 摘要 |
PROBLEM TO BE SOLVED: To provide a propeller for ship which has both characteristics of cavitation-erosion resistance and anti-fouling property to marine organism, and also, suppresses the cost for countermeasure against the anti-foulness to the marine organism. SOLUTION: On the outer surface 5 of the propeller body 3(4) for generating the driving force for driving the ship, a sprayed coating 6 having the composition of Co-base alloy containing, by weight,≤3% Ni, 25-35% Cr, 4-20% W,≤3% Fe,≤4% C, and the balance Co with inevitable impurities, is formed. COPYRIGHT: (C)2011,JPO&INPIT |
