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Impact–sliding fretting tribocorrosion behavior of 316L stainless steel in solution with different halide concentrations
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作者 Xu MA Wei TAN +2 位作者 Remy BONZOM Xue MI Guorui ZHU 《Friction》 SCIE EI CAS CSCD 2023年第12期2310-2328,共19页
Impact–sliding caused by random vibrations between tubes and supports can affect the operation of heat exchangers.In addition,a corrosive environment can cause damage,accelerating the synergism of corrosion and wear.... Impact–sliding caused by random vibrations between tubes and supports can affect the operation of heat exchangers.In addition,a corrosive environment can cause damage,accelerating the synergism of corrosion and wear.Therefore,the focus of this work was the impact–sliding fretting tribocorrosion behavior of 316L heat exchanger tubes at different halide concentrations.A device system incorporating the in situ electrochemical measurements of impact–sliding fretting corrosion wear was constructed,and experiments on 316L heat exchanger tubes in sodium chloride(NaCl)solution with different concentrations(0.0,0.1,0.5,1.0,3.5,and 5.0 wt%)were carried out.The synergism between wear and corrosion was also calculated and analyzed.The wear and damage mechanisms were elucidated by correlating the corrosion–wear synergism,morphologies,and material loss rates.The results indicated that the stable wear stage occurred at approximately 9–12 h,after which the corrosion current increased with the expansion of the wear area.As the halide concentration increased,the scale of damage on the wear scars gradually decreased,changing from being dominated by cracks,delaminations,and grooves to being dominated by scratches,microgrooves,and holes.There was an obvious positive synergism between wear and corrosion.The material loss was dominated by pure mechanical wear and wear enhanced by corrosion,but corrosion enhanced by wear contributed more than tangential sliding fretting corrosion.The total mass loss increased gradually in the range of 0.0–0.5 wt%and decreased in the range of 0.5–5.0 wt%.Large-scale damage enhanced by corrosivity and small-scale damage reduced by lubricity dominated the material loss at low and high concentrations,respectively. 展开更多
关键词 impact-sliding fretting wear TRIBOCORROSION halide concentration 316l stainless steel
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Corrosion and tribocorrosion behaviors of AISI 316 stainless steel and Ti6Al4V alloys in artificial seawater 被引量:14
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作者 陈君 张清 +2 位作者 李全安 付三玲 王建章 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2014年第4期1022-1031,共10页
The corrosion and tribocorrosion behaviors of AISI 316 stainless steel and Ti6Al4V alloys sliding against Al2O3 in artificial seawater using a pin-on-disk test rig were investigated. And the synergistic effect between... The corrosion and tribocorrosion behaviors of AISI 316 stainless steel and Ti6Al4V alloys sliding against Al2O3 in artificial seawater using a pin-on-disk test rig were investigated. And the synergistic effect between corrosion and wear was emphatically evaluated. The results show that the open circuit potentials of both alloys drop down to more negative value due to friction. The corrosion current densities obtained under tribocorrosion condition are much higher than those under corrosion-only condition. Friction obviously accelerates the corrosion of the alloys. The wear loss for both alloys is larger in seawater than that in pure water. Wear loss is obviously accelerated by corrosion. And AISI 316 stainless steel is less resistant to sliding damage than Ti6Al4V alloy. The synergistic effect between wear and corrosion is a significant factor for the materials loss in tribocorrosion. In this surface-on-surface contact geometry friction system, the material loss is large but the ratio of wear-accelerated-corrosion to the total wear loss is very low. 展开更多
关键词 Ti6Al4V alloy AISI 316 stainless steel TRIBOCORROSION synergistic effect
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316L不锈钢微动磨蚀过程力学化学交互作用的迁移行为 被引量:2
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作者 闫建中 吴荫顺 +1 位作者 李久青 张琳 《中国腐蚀与防护学报》 CAS CSCD 2001年第2期88-94,共7页
用球 -平面接触微动设备研究了 316L不锈钢微动损伤速率随微动时间的变化 ,解析了316L不锈钢不同微动阶段的损伤机制 .316L不锈钢微动分三个阶段 :第一阶段为微突体接触机制 ,犁沟损伤严重 ;第二阶段缝隙腐蚀的发生发展成为影响微动的... 用球 -平面接触微动设备研究了 316L不锈钢微动损伤速率随微动时间的变化 ,解析了316L不锈钢不同微动阶段的损伤机制 .316L不锈钢微动分三个阶段 :第一阶段为微突体接触机制 ,犁沟损伤严重 ;第二阶段缝隙腐蚀的发生发展成为影响微动的主导因素 ;第三阶段是腐蚀疲劳微断裂所致剥层机制为主的损伤过程 .力学化学交互作用分量在稳定阶段占损伤的 6 0 %以上 ,对316L不锈钢微动损伤影响显著 ;力学分量随微动过程的进行线性下降 ,腐蚀分量线性增长 。 展开更多
关键词 微动磨蚀 316l不锈钢 迁移特性 力学化学交互作用
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316L不锈钢微动磨蚀过程力学化学交互作用研究
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作者 闫建中 吴荫顺 +1 位作者 李久青 张琳 《腐蚀科学与防护技术》 CAS CSCD 2000年第5期254-259,共6页
采用球 平面接触微动设备 ,对 31 6L不锈钢在不同NaCl溶液中微动过程力学化学交互作用进行了研究 ,并解析了材料微动损伤速率与溶液腐蚀特性之间的关系 .结果表明 ,材料微动过程力学化学作用相互促进 ,力学损伤在微动损伤过程中占居主... 采用球 平面接触微动设备 ,对 31 6L不锈钢在不同NaCl溶液中微动过程力学化学交互作用进行了研究 ,并解析了材料微动损伤速率与溶液腐蚀特性之间的关系 .结果表明 ,材料微动过程力学化学作用相互促进 ,力学损伤在微动损伤过程中占居主导作用 .强碱性、强酸性及溶液富含Cl- 的情况下 ,都可导致材料严重微动损伤 ,而在中性条件下 ,力学因素对化学损伤促进作用最为明显 . 展开更多
关键词 316l不锈钢 力学化学交互作用 微动磨蚀
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曼尼希碱复合缓蚀剂的缓蚀性能研究 被引量:2
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作者 任晓光 周继敏 +1 位作者 宋永吉 於晖 《石油化工腐蚀与防护》 CAS 2010年第5期4-7,共4页
通过CMB-4510A缓蚀剂快速评定仪研究腐蚀溶液中曼尼希碱、硅酸钠及钼酸钠的单一配方以及复配对316L钢的缓蚀作用。结果表明,曼尼希碱、硅酸钠和钼酸钠各自的单一配方对316L钢均具有一定的缓蚀作用,其中曼尼希碱质量分数为0.075%,硅酸钠... 通过CMB-4510A缓蚀剂快速评定仪研究腐蚀溶液中曼尼希碱、硅酸钠及钼酸钠的单一配方以及复配对316L钢的缓蚀作用。结果表明,曼尼希碱、硅酸钠和钼酸钠各自的单一配方对316L钢均具有一定的缓蚀作用,其中曼尼希碱质量分数为0.075%,硅酸钠和钼酸钠质量浓度分别为150 mg/L和200 mg/L时表现出较好的缓蚀效果。当曼尼希碱缓蚀剂为主剂与硅酸钠和钼酸钠复配使用时,曼尼希碱质量分数为0.05%,硅酸钠质量浓度为200 mg/L;曼尼希碱质量分数为0.05%和钼酸钠质量浓度为150 mg/L时二元复配缓蚀荆的缓蚀效果更佳,明显高于单组分缓蚀剂。曼尼希碱质量分数为0.05%,硅酸钠和钼酸钠质量浓度分别为200 mg/L与50 mg/L时缓蚀效果更好,腐蚀速率为0.04mm/a,复配缓蚀剂具有协同效应,并且对316 L钢的,羔蚀有一定的抑制作用。 展开更多
关键词 曼尼希碱 硅酸钠 钼酸钠 协同效应 316l
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