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船壳由于腐蚀和海生物污损而使表面粗糙度增大。这给船舶营运者带来巨大负担。据伯悬估计[1]:仅就英船队而论,船舶航行中同粗糙度增大而造成的年航运费增加达4亿英磅。按经验法则估计[2]:粗糙度每增大10微米,船体效率降低1％,因此,任何可用以减小船体粗糙度的措施均将显著地节省燃料和资金。值得加以认真考虑的一项措施是使用一种耐海水腐蚀并且具有永久性防污性能的船体结构材料。90/10Cu-Ni合金即是现有的并可以合
Hull surface roughness increases due to corrosion and marine biofouling. This imposes a huge burden on ship operators. According to the Bohang estimation [1]: In the case of the British fleet only, the annual shipping charges due to the increase in roughness of the ship during navigation are up to 400 million pounds. As a rule of thumb it is estimated [2] that for every 10 microns increase in roughness, the hull efficiency is reduced by 1% and therefore any measures that can be taken to reduce the hull roughness will result in significant savings in fuel and capital. One measure worth serious consideration is the use of a hull structural material that is resistant to seawater corrosion and has permanent anti-fouling properties. 90 / 10Cu-Ni alloy is available and can be combined