海水管路系统中铝青铜腐蚀行为的研究

中国腐蚀与防护学报

2000, Vol. 20

Issue (3): 188-192

研究报告

本期目录 | 过刊浏览

海水管路系统中铝青铜腐蚀行为的研究

韩忠;江伟明;林海潮

中科院金属腐蚀与防护研究所

STUDY ON CORROSION BEHAVIOR OF ALUMINUM BRONZE IN SEA WATER PIPE LINE SYSTEM

Zhong Han;Weiming Jiang;

中科院金属腐蚀与防护研究所

全文: PDF(199 KB)

摘要: 在分析测试我国现役舰船海水管路系统中铝青铜管的基础上，探讨了铝青铜管在使用过程中的脱合金腐蚀机制。结果表明，铝青铜发生脱铝腐蚀，脱铝优先发生在α相与未分解的共析组织的界面处，然后向共析组织内部发展，并沿着亚稳的共析组织以选择性溶解的形式不断向合金内部扩展，形成疏松多孔的结构，使合金强度大降低。α相几乎不发生脱铝腐蚀

关键词 ：海水管路, 铝青铜, 脱铝, 选择性溶解

Abstract：The dealloying mechanism of material in service was discussed on the basis of analyzing the structural morphologies of aluminum bronze tube used in sea water pipe line system.The microstructure and morphologies of aluminum bronze before and after being corroded were examined by optical microscope and SEM.The compositions of corroded aresa were analyzed by EDS and the phases before and after cossosion were determined by XRD.The results revealed that dealuminizationcorrosio was obseived in aluminum bronze tube, and the phenomenon preferentially occurred at the interface of α-phase and metastable β-phase.This set up a path for the selective attack to follow β-phase matrix and eventually penetrated the tube.The α-phase showed a minor tendency to dealiminize.

Key words： sea water Aluminum bronze Dealuminization aelective dissolution

收稿日期: 1999-05-20

ZTFLH:

TG172.2

通讯作者: 韩忠

Corresponding author: Zhong Han

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引用本文:

韩忠; 江伟明; 林海潮 . 海水管路系统中铝青铜腐蚀行为的研究[J]. 中国腐蚀与防护学报, 2000, 20(3): 188-192 .
Zhong Han, Weiming Jiang. STUDY ON CORROSION BEHAVIOR OF ALUMINUM BRONZE IN SEA WATER PIPE LINE SYSTEM. J Chin Soc Corr Pro, 2000, 20(3): 188-192 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2000/V20/I3/188

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