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1Cr 18Ni 9Ti不锈钢焊缝电化学腐蚀机理的研究
孙可良1, 张经磊1, 郭公玉1, 侯保荣1
中国科学院海洋研究所
摘要:
本文用电化学方法研究了1Cr 18Ni 9Ti不锈钢焊接处在海水中的电偶腐蚀行为。测量了焊缝区、热影响区和母材区之间的电位差和电偶电流。用金相显微镜分析了金相组织。讨论了焊接区金属腐蚀的机理。
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基金项目:
THE STUDIES OF ELECTROCHEMICAL CORROSION MECHANISM OF 1Cr18Ni 9Ti STAINLESS STEEL WELDS
Abstract:
The galvanic corrosion behavior of 1Cr18Ni9Ti stainless steel welds in sea water has been studied by electrochemical method. The potential difference and galvanic couple current are measured for the ffiler material (FM), heat affected zone (HAZ), and parent metal (PM). Metallographic structures of FM, HAZ and PM zone are examined visually by microscope. The corrosion mechanism of the metals in welded zone are discussed.
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