Failure Analysis of B30 Alloy Tube Used for Vessel Auxiliary Condenser in Seawater

SONG Hong-qing; ZHOU Juan; WAMG Yong-ming

doi:10.11973/fsyfh-201702014

Corrosion & Protection > 2017 > 38(2): 151-154,159. > DOI: 10.11973/fsyfh-201702014

SONG Hong-qing, ZHOU Juan, WAMG Yong-ming. Failure Analysis of B30 Alloy Tube Used for Vessel Auxiliary Condenser in Seawater[J]. Corrosion & Protection, 2017, 38(2): 151-154,159. DOI: 10.11973/fsyfh-201702014

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Failure Analysis of B30 Alloy Tube Used for Vessel Auxiliary Condenser in Seawater

1. State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute Qingdao Branch, CSSC, Qingdao 266101, China;
2. Qingdao Sunrui Marine Environment Engineering Co., Ltd., Qingdao 266101, China

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Received Date: October 15, 2015

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Abstract

Early failure happened in large areas of B30 alloy tube used for vessel auxiliary condenser. The failure reasons were analyzed through corrosion morphology, corrosion products and polarization curves. The results indicate that selective corrosion happened to B30 alloy, and the most serious corrosion in local area of inner surface was de-nickel corrosion because of pitting. The acidic environment in the pitting pits made de-nickel corrosion more serious. Potential of copper is more positive than that of nickel,so copper could deposited on grain boundaries.
- B30 alloy,
- de-nickel corrosion,
- condenser

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[1]	张启林. 船用B30铜镍合金管材腐蚀原因分析[J]. 材料开发与应用,1986,1(1):22-32.
[2]	王志武,李正刚,李朝志,等. 阳逻电厂冷凝器B30白铜管泄漏原因分析[J]. 武汉水利电力大学学报,1997(5):53-56.
[3]	徐群杰,黄诗俊. 铜镍合金耐蚀性影响的研究进展[J]. 上海电力学院学报,2007,23(2):157-162.
[4]	杜一立,李进,崔连军,等. 生物膜在B30合金微生物腐蚀中的作用[J]. 腐蚀科学与防护技术,2007,19(6):401-405.
[5]	陈翔峰,穆振军,许春生,等. 铜及铜合金在厦门海域实海暴露腐蚀规律研究[J]. 装备环境工程,2013,10(2):1-3.
[6]	徐群杰,丁茂荣,陈子超,等. 模拟水中B30铜镍合金耐蚀性的电化学研究[J]. 上海电力学院学报,2006,22(3):229-232.
[7]	严宇民,林乐耘. 残余应力对BFe30-1-1铜管耐蚀性能的影响[J]. 中国腐蚀与防护学报,1994,14(1):59-64.
[8]	姜丽娜,隋永强,宋泓清. BFe30-1-1白铜管在海洋大气环境中的腐蚀行为[J]. 腐蚀与防护,2009,30(2):81-83.
[9]	迟长云,许立坤,蔺存国,等. pH变化对B30铜镍合金腐蚀电化学行为的影响[J]. 装备环境工程,2009,6(3):38-41.
[10]	赵月红,林乐耘,崔大为. 铜镍合金在我国实海海域的局部腐蚀[J]. 中国有色金属学报,2005,15(11):1786-1794.
[11]	顾彩香,张小磊,赵向博. 铜合金腐蚀的影响因素及研究状况[J]. 船舶工程,2014,36(3):10-12.

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