| 不锈钢焊缝在硫酸中的腐蚀 |
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| 引用本文： | 梁成浩,殷正安,王毓英.不锈钢焊缝在硫酸中的腐蚀[J].大连理工大学学报,1986(4). |
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| 作者姓名： | 梁成浩 殷正安 王毓英 |
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| 作者单位： | 大连工学院腐蚀与防护教研室
(梁成浩，殷正安)，大连工学院腐蚀与防护教研室(王毓英) |
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| 摘 要： | 本文研究了在２０％Ｈ２ＳＯ４溶液中奥氐体不锈钢焊接接头的腐蚀行为。结果指 出．焊接材料的热影响区对腐蚀较为敏感，其腐蚀形态多呈晶间腐蚀．原因在于，受 焊接的热影响，晶界沉淀析出碳化物，导致晶界处发生选择性腐蚀。同时，还模拟了 晶界贫铬区，进行了一系列电化学试验，探讨了贫铬区的再活化溶解行为。
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| 关 键 词： | 耐酸试验 硫酸 奥氏体合金 晶间腐蚀 电腐蚀 线性极化 钝化 |
Study of the Corrosion Behaviour of the Wedling Joint of Austenitic Stainless Steel in 20% Sulphuric Acid Solution |
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| Liang Chenghao,Yin Zhengan,Wang Yuying.Study of the Corrosion Behaviour of the Wedling Joint of Austenitic Stainless Steel in 20% Sulphuric Acid Solution[J].Journal of Dalian University of Technology,1986(4). |
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| Authors: | Liang Chenghao Yin Zhengan Wang Yuying |
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| Institution: | The Teaching and Research Section of Corrosion and Protection of DIT |
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| Abstract: | This article studies how the corrosion of the welding joint of austenitic stai- nless steel behaves in 20% sulphuric acid solution. The study indicates that the heat-affected zone of the welding material is sensitive to corrosion and the corrosion is intergranular. The reason is that the intergranular precipitate, affected by the welding heat, separates out carburet and it causes the selective corrosion at the intergranular boundary. And then, the chromium depleted region is simulated, a series of electrochemical tests are done and the behaviour of the reactivation dissolve in the chromium depleted region is studied. |
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| Keywords: | acid resisting test sulfuric acid Austentic alloys intergranular corrosion electro-corrosion linear polarization passivation |
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