Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution
By adding an electrochemical test system on a PLINT fretting wear test machine,the fretting corrosion behavior of an NC30 Fe heat transfer tube in a sodium chloride solution was investigated using cross-contacting configuration under different loading conditions,i. e.,three different normal loads of...
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| Format: | Article |
| Language: | zho |
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Science Press
2015-10-01
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| Series: | 工程科学学报 |
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| Online Access: | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.10.014 |
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| author | LI Fang REN Ping-di ZHANG Xiao-yu XIANG Hong-xian REN Si-cong CAI Zhen-bing |
| author_facet | LI Fang REN Ping-di ZHANG Xiao-yu XIANG Hong-xian REN Si-cong CAI Zhen-bing |
| author_sort | LI Fang |
| collection | DOAJ |
| description | By adding an electrochemical test system on a PLINT fretting wear test machine,the fretting corrosion behavior of an NC30 Fe heat transfer tube in a sodium chloride solution was investigated using cross-contacting configuration under different loading conditions,i. e.,three different normal loads of 20,50 and 80 N with a 100 μm reciprocating amplitude. An electrochemical workstation was used to record the open circuit potential during the fretting corrosion process,and the polarization curves were measured by the potential scanning method. The morphology of wear scars was observed by scanning electron microscopy. The 3D morphology and wear volume loss were determined by optical profilometry. It is found that metal atoms in the worn area are more active and more prone to corrosion because of fretting motion,leading to accelerated corrosion of NC30 Fe alloy. As a result of lubrication action by the corrosion product film,the friction coefficient in the sodium chloride solution is smaller than that in pure water. However,the wear volume loss in the sodium chloride solution is greater than that in pure water due to the interaction of corrosion and wear. Abrasive wear and delamination are considered to be the main wear mechanism in the sodium chloride solution. |
| format | Article |
| id | doaj-art-ea7a706e930c4d2e88e8c416096cfa91 |
| institution | OA Journals |
| issn | 2095-9389 |
| language | zho |
| publishDate | 2015-10-01 |
| publisher | Science Press |
| record_format | Article |
| series | 工程科学学报 |
| spelling | doaj-art-ea7a706e930c4d2e88e8c416096cfa912025-08-20T02:16:59ZzhoScience Press工程科学学报2095-93892015-10-0137101344134910.13374/j.issn2095-9389.2015.10.014Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solutionLI Fang0REN Ping-di1ZHANG Xiao-yu2XIANG Hong-xian3REN Si-cong4CAI Zhen-bing5Tribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaTribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaTribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaTribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaTribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaTribology Research Institute, Southwest Jiaotong University, Chengdu 610031, ChinaBy adding an electrochemical test system on a PLINT fretting wear test machine,the fretting corrosion behavior of an NC30 Fe heat transfer tube in a sodium chloride solution was investigated using cross-contacting configuration under different loading conditions,i. e.,three different normal loads of 20,50 and 80 N with a 100 μm reciprocating amplitude. An electrochemical workstation was used to record the open circuit potential during the fretting corrosion process,and the polarization curves were measured by the potential scanning method. The morphology of wear scars was observed by scanning electron microscopy. The 3D morphology and wear volume loss were determined by optical profilometry. It is found that metal atoms in the worn area are more active and more prone to corrosion because of fretting motion,leading to accelerated corrosion of NC30 Fe alloy. As a result of lubrication action by the corrosion product film,the friction coefficient in the sodium chloride solution is smaller than that in pure water. However,the wear volume loss in the sodium chloride solution is greater than that in pure water due to the interaction of corrosion and wear. Abrasive wear and delamination are considered to be the main wear mechanism in the sodium chloride solution.http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.10.014nickel chromium iron alloyssodium chloride solutionsfretting corrosioncorrosion characteristicspolarization curvesinteraction |
| spellingShingle | LI Fang REN Ping-di ZHANG Xiao-yu XIANG Hong-xian REN Si-cong CAI Zhen-bing Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution 工程科学学报 nickel chromium iron alloys sodium chloride solutions fretting corrosion corrosion characteristics polarization curves interaction |
| title | Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution |
| title_full | Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution |
| title_fullStr | Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution |
| title_full_unstemmed | Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution |
| title_short | Fretting corrosion characteristics of NC30Fe alloy in a sodium chloride solution |
| title_sort | fretting corrosion characteristics of nc30fe alloy in a sodium chloride solution |
| topic | nickel chromium iron alloys sodium chloride solutions fretting corrosion corrosion characteristics polarization curves interaction |
| url | http://cje.ustb.edu.cn/article/doi/10.13374/j.issn2095-9389.2015.10.014 |
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