研究了高硅钢(0.49%Si,质量分数)在不同浸镀温度(440,480,520,560,600℃)和不同浸镀时间(1,3,5,10min)下的热镀锌试样镀层组织,探讨了浸镀温度和浸锌时间对镀层组织的影响.SEM/EDS结果表明:440℃和480℃热镀锌,镀层由薄而连续δ层和破碎的块状ζ相组成,无Γ相.ζ相生长过快,镀层过厚、灰暗、黏附性差,镀层生长主要由界面反应机制控制;520℃热镀锌时,镀层由极薄的Γ层、致密δk层和疏松的δp层组成,镀层生长主要受扩散机制控制; 560℃和600℃镀锌时,镀层为Γ层和致密的δ相层,部分δ粒子弥散分布在η层中,镀层生长为扩散机制控制并伴随有显著的δ溶解过程.最佳高温镀锌温度应在520～560℃.
参考文献
| [1] | N. Pistofidis;G. Vourlias;S. Konidaris;E. Pavlidou;A. Stergiou;G. Stergioudis .Microstructure of zinc hot-dip galvanized coatings used for corrosion protection[J].Materials Letters,2006(6):786-789. |
| [2] | Marder AR. .The metallurgy of zinc-coated steel [Review][J].Progress in materials science,2000(3):191-271. |
| [3] | CHEN Z W;KENNON N F;SEE J B et al.Technigalva and other developments in bath hot-dip galvanizing[J].Journal of Metals,1992,44(01):22-26. |
| [4] | FOCT J;PERROT P;REUMONT G.Understanding of the sandelin phenomena and remedies based on thermodynamics and thermo-kinetics[A].France:Paris,1994 |
| [5] | DREULLE N .Zinc Alloy and Galvanizing Process[P].U S Patent:4238532,1980-12-09. |
| [6] | LEE H J;KIM J S .Effect of Ni addition in zinc bath on formation of inhibition layer during galvannealing of hot-dip galvanized sheet steels[J].Journal of Materials Science Letters,2001,20(10):955-957. |
| [7] | Shibli SMA;Manu R;Dilimon VS .Effect of nickel-rich barrier layer on improvement of hot-dip zinc coating[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/4):179-185. |
| [8] | DIAZ L B;RAMANAUSKAS R;BARTOLO P P .Mn oxide film as corrosion inhibition of Zn-Mn coatings[J].Corrosion Reviews,2000,18(01):41-51. |
| [9] | Kazumi NISHIMURA;Hidetoshi SHINDO;Hiromasa NOMURA .Corrosion Resistance of Hot Dip Zn-Mg Galvanized Steel Sheet[J].鉄と鋼,2003(1):174-179. |
| [10] | 许乔瑜,桂艳,卢锦堂,孔纲,车淳山.热浸Zn-Ti合金镀层的显微组织与耐蚀性能[J].华南理工大学学报（自然科学版）,2008(07):82-86. |
| [11] | VERMA A R B;VAN OOIJ W J .High-temperature batch hot-dip galvanizing.Part 2:comparison of coatings formed in the temperature range 520-555℃[J].Surface and Coatings Technology,1997,89(1-2):143-150. |
| [12] | Jianhua Wang;Hao Tu;Bicao Peng .The effects of zinc bath temperature on the coating growth behavior of reactive steel[J].Materials Characterization,2009(11):1276-1279. |
| [13] | Jae-Hwa Hong;Sei-Jin Oh;Soon Ju Kwon .Mossbauer analysis of the iron-zinc intermetallic phases[J].Intermetallics,2003(3):207-213. |
| [14] | 潘金生;仝健民;田民波.材料科学基础[M].北京:清华大学出版社,1998 |
| [15] | Dybkov, V. I. .Regularities of reaction diffusion and phase formation in the binary Ni-Bi, Ni-Zn, and Co-Zn systems[J].Порошковая Металлургия,2001(7/8):131-137. |
| [16] | Jordan CE.;Marder AR. .FE-ZN PHASE FORMATION IN INTERSTITIAL-FREE STEELS HOT-DIP GALVANIZED AT 450 DEGREES-C .1. 0.00 WT-PERCENT AL-ZN BATHS[J].Journal of Materials Science,1997(21):5593-5602. |
| [17] | X. Su;F. Yin;Z. Li .Thermodynamic calculation of the Fe-Zn-Si system[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2005(1/2):156-163. |
| [18] | HABRAKEM L.Contribution to a scientific explanation of the metallurgical phenomena occurring in the iron-zinc reaction[A].London:Zinc Development Association,1979:121-123. |
| [19] | MACKOWIAK J;SHORT N R .Metallurgy of galvanized coatings[J].International Metals Reviews,1979,24(01):1-19. |
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