|
|
|
| STUDY ON CORROSION BEHAVIOR OF B10(Cu:Ni=90:10) ALLOY EXPOSED TO NATURAL SEAWATER |
| Leyun Lin;; |
| 北京有色金属研究总院 |
|
|
|
|
Abstract The rule of a long term, several interval seawater corrosion data of 90;10 Cu/Ni alloy (CDA706)tube and plate has been studied.Reaults showed that the alloy tube with relatively low tensile strength suffered severe corrosion in seawater of Xiamen and Zhoushan,exhibiting morphology of erosion and intergranular corrosion.But the alloy plate with relatively high tensile strength possessed bigger temperature sensitivity i.e. the corrosion rate was higher in Yulin than Yulin because of the higher seawater temperature.The detail of corrosion morphology and corrosion product film were observed and analyzed by using advanced metal physics methods of coloring metallographu (CM),scanning electron microscopy (SEM),electron dispersive of X-ray analysis(EDXA) etc.to find out the reasons of different sensitivities occurring on these alloy materials.It was found that corrosion sensitivities of the two kind materials were due to the grain boundary defects produced when the materials were processed.
|
|
Received: 03 April 2000
|
|
|
|
Corresponding Authors:
Leyun Lin
|
[1][美]M.舒马赫编,李大超等译.海水腐蚀手册[M].北京:国防工业出版社,19854
[2] Glover T J. Copper - nickel alloy for the construction of ship and for hulls[J]. Br. Corrosion J., 1982, 17(4): 155.
[3] Domiaty A E, Alhajji J N. The susceptibility of 90Cu-10Ni alloy to stress corrosion cracking in sulfide polluted seawater[AJ]13th ICC, Paper 243, Australia, 1996.
[4] Prolenga L J P, Ijsseling F P, Koster B H. The influence of alloy composition and microstructure on the corrosion behavior ofcopper-nickel alloys in seawater[J]. Werk. Korro., 1983, 34: 167 - 178
[5 ] Ming ho Tseng. Ham Chang Shih. The corrosion behavior of 90Cu - 10Ni in seawater[J]. Corrosion Prev. Contr., 1994, (2):19 - 21
[6] Ijsseling F P, Drolenga L J P, Kolster B H. Influence of temperature on corrosion product film formation on CuNi10Fe in the low temperature rage, I - Corresion rate as a function of temperature in wen aerated sea water[J ] Br. Corrosion J., 1982, 17(4): 162 - 167
[7 ] Kirk W W, Pikul S J. Seawater corrosivity around the world: results from three years of testing[A]. ASTM STP 1086, 1990,2 - 36
[8] Syrett B C, Wing S S. Effect of flow on corrosion of Cu-Ni alloys in aerated sea water and in sulfide-polluted sea water[J],Corrosion, 1980, 36 (2): 73
[9] Efird K D. Potential-pH diagrams for 90-10 and 70-30 Cu-Ni in seawater[J]. Corrosion, 1975, 31 (3): 77
[10]林乐耘,刘少峰.海水腐蚀导致铜镍合金的沿晶析出[J]中国腐蚀与防护学报,1997,17(1):1-6
[11]林乐耘,刘少峰,刘增才,徐杰铜镍合金海水腐蚀表面与界面特征研究[J]腐蚀科学与防护技术,1999,11(1);37-43
[12]刘增才,林乐耘,刘少峰,赵月红.实海暴露双相黄铜脱锌的扩散机制[J]材料研究学报,2000,14(增刊):145-149
[ 13] Efird K D. Seawater corrosion of 90-10 and 70-30 Cu-Ni: 14 years exposure[J]. Material Performance, 1975(11): 37 - 40
[ 14] Lennox T J, Groover R E, PetersonM H. De-alloying of Cu alloys and response to cathodic protection in quiescent sea water[J]. Materials Protection, 1971, 10(7): 31
[15]林乐耘,严宇民,朱小龙,马士德铜合金实海暴露与抗污行为的研究[J]腐蚀科学与防护技术,1995,7(3);241-2434 |
| No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
