材料期刊网

将B10铜镍合金铸锭轧制成板材，经不同的变形量和退火温度处理，再以不同的方法进行表面处理，然后在海水中进行全浸暴露。暴露半年后，发现试样的抗污性能相差悬殊。以适当的变形量和650℃退火处理并经表面预成膜处理的B10合金板材，表现出耐蚀与抗污性能双优。而经不同变形量和450℃退火处理后，该合金的耐蚀性能较差，表面预成膜处理并不能提高其耐蚀性能，而其抗污性能却随变形量的不同而不同。通过电子显微镜观察分析，发现该合金的表面腐蚀形貌及微观组织结构与合金抗污性能有对应关系。

90:10 cupronickle alloy (CDA706) would lose its corro sion resistance a nd/or antifouling property in seawater under certain condition of process techno logy although the alloy is well known to be excellent in both properties.It was discovered in present work that plate specimens processed by different surface treatment as well as different deformation and annealing technology shown much different antifouling properties. The specim ens were put into seawater in Yulin experiment station for seawater corrosion. A fter 6 months exposure the organism amount attached on the plate specimens were vastly different, the best specimen possessed both good corrosion resistance and antifouling properties was the one processed by 650℃ annealing treatment and pre-treatment of surface film after a suitable deformation. But the specimens p rocessed by 450℃ annealing and different amount of deformation and even surface pretreatment exhibited relatively poor corrosion resistance.Yet the antifouling properties of this series of specimens were influenced by deformation. The corr esponding relationship between the microstructure and the properties of the allo y specimens was investigated through observation under electron microscopy.