Today is Email Alert  RSS

Analysis on Film Forming Mechanism of Chromium-Free Passivation Agent for Aluminum Alloy Wheel Hub

Expand
  • (1.Zhejiang Jinfei Automobile and Motorcycle Parts Technology Research Institute Co., Ltd., Jinhua 321016, China;2.Zhejiang Jinfei Motorcycle Research Institute Co., Ltd., Jinhua 321036, China;3.Zhejiang Jinfei Kaida Wheel Co., Ltd., Jinhua 321000, China; 4.Anhui Surface Engineering Research Center, Hefei 230088, China)

Received date: 2023-03-28

  Revised date: 2023-04-12

  Accepted date: 2023-05-20

  Online published: 2023-09-15

Abstract

In order to study the film forming mechanism of chromium-free passivation film for aluminum alloy wheel hub, the film-forming effect and mechanism of chromium-free chemical conversion film on aluminum alloy automobile wheel hub were studied by electrochemical method combined with X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM).Results showed that during the formation of chemical conversion film, organics, zirconium and oxygen compounds would grow competitively.At the initial stage of film formation,inorganic zirconium and oxygen compounds had faster reaction and film forming rate.With the extension of film forming time, silane and resin,organic components, slowly formed chemical bonds to form a film, forming an inorganic/organic complete continuum, thus playing a better corrosion resistance coordination role.

Cite this article

CHEN Yingjiao, CHEN Bihong, YAN Liqiang, LI Heng, LIU Wanqing . Analysis on Film Forming Mechanism of Chromium-Free Passivation Agent for Aluminum Alloy Wheel Hub[J]. Materials Protection, 2023 , 56(9) : 125 -128 . DOI: 10.16577/j.issn.1001-1560.2023.0223

References

[1] 曹楚南.腐蚀电化学原理(第二版)[M].北京: 化学工业出版社, 2004: 232-298.CAO C N.Principles of Corrosion Electrochemistry (Second Edition) [M].Beijing: Chemical Industry Press, 2004:232-298.

[2] 朱祖芳.铝合金化学转化膜处理技术的进展及工业应用[J].材料保护, 2003, 36(3): 1-4.ZHU Z F.Progress and Industrial Application of Chemical Conversion Film Treatment Technology for Aluminum Alloys[J].Materials Protection, 2003, 36(3): 1-4.

[3] 刘 洋, 侯佳新, 张志壮.A356 铝合金低压铸造轮毂轮缘缺陷分析及改进[J].铸造, 2017, 66(10): 1 112-1 114.LIU Y, HOU J X, ZHANG Z Z.Analysis and Improvement of Defects in A356 Aluminum Alloy Low Pressure Casting Wheel[J].Foundry, 2017, 66(10): 1 112-1 114.

[4] 牟清举, 陈佰江.6061 铝合金轮毂锻造成形过程动态再结晶分析[J].铸造技术, 2016, 37(12): 2 711-2 713.MOU Q J,CHEN B J.Dynamic Recrystallization Analysis of 6061 Aluminum Alloy Wheel Forging Process[J].Foundry Technology, 2016, 37(12): 2 711-2 713.

[5] 田晓生, 刘 杰, 张明新, 等.液态模锻A356 铝合金汽车轮毂的微观组织及性能[J].热加工工艺, 2016, 45(17): 150-151.TIAN X S, LIU J, ZHANG M X, et al.Microstructure and Properties of Liquid Die Forged A356 Aluminum Alloy Automotive Wheel Hub[J].Hot Working Process, 2016, 45(17): 150-151.

[6] LAHA P, SCHRAM T, TERRYN H.Use of spectroscopic ellipsometry to study Zr/Ti films on Al [J].Surface and Interface Analysis, 2002, 34(1): 677-680.

[7] 印仁和,万宗跃,徐群杰,等.植酸自组装单分子膜对白铜B30 缓蚀作用的研究[J].功能材料, 2007, 38(4):562-564.YIN R H, WAN Z Y, XU Q J, et al.Study on the corrosion inhibition effect of phytic acid self-assembled monolayer on white copper B30[J].Functional Materials, 2007, 38(4):562-564.

[8] 秦振华, 李红玲.6061 铝合金表面氟钛酸盐转化新工艺[J].腐蚀与防护, 2014, 35(7): 742-745.QIN Z H, LI H L.New technology of fluoro Titanate conversion on 6061 aluminum alloy surface[J].Corrosion and Protection, 2014, 35(7): 742-745.

[9] 王双红.A357 铝合金轮毂无铬终钝化膜的制备与耐蚀性[J].电镀与精饰, 2019, 38(23): 1 291-1 294.WANG S H.Preparation and Corrosion Resistance of Chromium Free Final Passivation Film on A357 Aluminum Alloy Wheel Hub[J].Plating & Finishing, 2019, 38(23):1 291-1 294.

Outlines

/