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| 不同热处理条件下双相钢的磨损腐蚀 | |
| 引用本文： | 刘景军,林玉珍,雍兴跃,吴玖,韩俊媛. 不同热处理条件下双相钢的磨损腐蚀[J]. 腐蚀科学与防护技术, 2002, 14(3): 129-131 |
| 作者姓名： | 刘景军 林玉珍 雍兴跃 吴玖 韩俊媛 |
| 作者单位： | 1. 北京化工大学,北京,100029;金属腐蚀与防护国家重点实验室,沈阳,110016 2. 金属腐蚀与防护国家重点实验室,沈阳,110016 3. 冶金部钢铁研究总院,北京,100029 |
| 基金项目： | 国家自然科学基金资助项目 (5 98710 0 6) |
| 摘 要： | 采用失重法、极化曲线法对不同热处理条件下双相钢 在流动的35% NaCl中性盐水中的磨损腐蚀规律及机理进行了探讨.结果表明，随着流速的 增大，不同热处理的双相钢腐蚀速度均增大，并存在一个使腐蚀速度急剧上升的临界流速值 ；流速相同时，经1050℃固溶后500℃2 h时效强化的双相钢耐蚀性最好.双相钢的腐蚀主要 受阳极的自钝化控制. |
| 关 键 词： | 双相钢 35% NaCl中性盐水 磨损腐蚀 机理 |
| 文章编号： | 1002-6495(2002)03-0129-03 |
EROSION CORROSION OF DUPLEX STAINLESS STEEL WITH DIFFERENT HEAT TREATMENTS IN FLOWING 3.5% NaCl SOLUTION |
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| LIU Jingjun ,,LIN Yuzhen ,,YONG Xingyue ,WU Jiu ,HAN Junyuan. EROSION CORROSION OF DUPLEX STAINLESS STEEL WITH DIFFERENT HEAT TREATMENTS IN FLOWING 3.5% NaCl SOLUTION[J]. Corrosion Science and Protection Technology, 2002, 14(3): 129-131 | |
| Authors: | LIU Jingjun LIN Yuzhen YONG Xingyue WU Jiu HAN Junyuan |
| Affiliation: | LIU Jingjun 1,2,LIN Yuzhen 1,2,YONG Xingyue 2,WU Jiu 3,HAN Junyuan 3 |
| Abstract: | Influence of heat treatments on the erosion corrosio n behavior of 0Cr25Ni6Mo3CuN duplex stainless steel was investigated in flowing 35% NaCl solution by using methods of weight loss and polarization curves The experimental results showed that the corrosion rates increase with increasin g flowing velocity,and there is a critical flow velocity above which the corrosi on rates are speeded up abruptly and the duplex stainless steels suffered from s erious erosion corrosion.However,the erosion corrosio n resistance can be improved by proper heat treatments.It was found that the cor rosion rate of duplex stainless steel annealed at 1050℃ and aged for 2hr at 500 ℃ was the lowest among the heat treated ones.Further study indicated that erosi on corrosion of duplex stainless steels is mainly controlled by passivation proc ess in the anode. |
| Keywords: | duplex stainless steel flowing 3 5% NaCl solution erosion corrosion mechanism |
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