氧化膜對14Cr12Ni2WMoVNb鋼QPQ滲層的室溫摩擦磨損和腐蝕性能的影響

張樂; 張津; 余強; 李洪; 連勇; 高文; 任青松

doi:10.13374/j.issn2095-9389.2017.07.010

氧化膜對14Cr12Ni2WMoVNb鋼QPQ滲層的室溫摩擦磨損和腐蝕性能的影響

doi: 10.13374/j.issn2095-9389.2017.07.010

張樂^1,2,
張津^1,2, ,,
余強¹,
李洪³,
連勇^1,2,
高文^1,2,
任青松⁴

1) 北京科技大學新材料技術研究院, 北京 100083
2) 北京市腐蝕、磨蝕與表面技術重點實驗室, 北京 100083
3) 廣東省新材料研究所, 廣州 510650
4) 重慶建設工業(集團)有限責任公司制造技術部, 重慶 400054

基金項目:

北京市腐蝕、磨蝕與表面技術重點實驗室和北京市教委共建資助項目(SYS100080419)

詳細信息

中圖分類號: TG156.8
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- 文章訪問數: 607
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- 被引次數: 0
出版歷程
- 收稿日期: 2017-02-23

Effect of oxide film on tribological properties at room temperature and corrosion performance of QPQ nitride layers on 14Cr12Ni2WMoVNb steel

ZHANG Le^1,2,
ZHANG Jin^{1,2
, ,},
YU Qiang¹,
LI Hong³,
LIAN Yong^1,2,
GAO Wen^1,2,
REN Qing-song⁴

1) Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
2) Beijing Key Laboratory for Corrosion, Erosion and Surface Technology, Beijing 100083, China
3) Guangdong Institute of New Materials, Guangzhou 510650, China
4) Manufacturing Technology Department, Chongqing Jianshe Industry(Group) Co. Ltd, Chongqing 400054, China

摘要

摘要: 為了研究14Cr12Ni2WMoVNb鋼QPQ(淬火-拋光-淬火)處理后的氧化膜對滲層室溫摩擦磨損和腐蝕性能的影響,利用金相、X射線衍射分析、掃描電鏡、能譜分析、劃痕儀、摩擦磨損試驗機和電化學工作站對試樣進行了表征.結果表明:氧化膜對滲層室溫摩擦學性能的影響與載荷大小有關.在摩擦時間均為4 min情況下,載荷較小(50 N)時,氧化膜可以降低摩擦系數和體積磨損率;載荷較大(100 N)時,氧化膜被破壞無法降低體積磨損率.氧化膜可明顯提高滲層的耐腐蝕性能.含氧化膜試樣的極化曲線有明顯的鈍化區,點蝕電位為-13 mV,去除氧化膜試樣在鹽霧腐蝕12 h后表面有大范圍的腐蝕區域,而含氧化膜試樣鹽霧腐蝕48 h后才有大區域腐蝕發生.
- 14Cr12Ni2WMoVNb鋼 /
- 氧化膜 /
- 摩擦學性能 /
- 腐蝕性能
Abstract: This study analyzed the effects of the oxide film of 14Cr12Ni2WMoVNb steel with QPQ (quench-polish-quench) treatment on tribological properties at room temperature and corrosion resistance of the layers. The microstructure and properties of specimens with and without oxide film were studied by metallographic analysis, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), a scratch tester, friction and wear tester, and at an electrochemical workstation. Results show that the effects of the oxide film on tribological properties of the layers are related to load. When the friction time is 4 min and the load is low (50 N), the friction coefficient of the oxide film and the volume wear rate are effectively decreased. However, with a friction time of 4 min and a high load (100 N), the oxide film is destroyed, there is thus no reduction in the volume wear rate. The study also shows that the oxide film obviously improves the corrosion resistance of the layers. The Tafel polarization curve of the specimen with oxide film has an obvious passivation region, and the pitting potential is-13 mV. The surface of the specimen with the oxide film removed has a wide area of corrosion after salt spray corrosion for 12 h, whereas a large area of corrosion only occurs after 48 h of salt spray for the specimen with the oxide film.
- 14Cr12Ni2WMoVNb steel /
- oxide film /
- tribological properties /
- corrosion resistance

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