加工工艺及表面预处理对B10合金板材抗海生物污着性能的影响  

Process Technology and Surface Pretreatment Related Antifouling Property of 90:10 Cu:Ni Alloy Plate in Sea Water

作　　者：林乐耘[1] 王晓华[1] 赵月红[1] 徐杰[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《材料开发与应用》2001年第1期26-29,40,共5页Development and Application of Materials

基　　金：国家自然科学基金资助项目 ;国家腐蚀与防护开放试验室资助项目

摘　　要：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 6 5 0℃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 45 0℃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。cupronickle alloy (CDA706) would lose its corrosion resistance and/or antifouling property in seawater under certain condition of process technology 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 specimens were put into seawater in Yulin experiment station for seawater corrosion. After 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 processed 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 corresponding relationship between the microstructure and the properties of the alloy specimens was investigated through observation under electron microscopy.

关 键 词：B10铜合金 加工工艺 海水腐蚀 抗污性能 表面预处理 

分 类 号：TG172.5[金属学及工艺—金属表面处理] TG146.11[金属学及工艺—金属学]