使用冷喷涂方法在铸态AZ91D镁合金基体上沉积了纯Al涂层,所得涂层组织致密,厚度均匀,与基体结合良好,孔隙率小于1%.随后用机械减薄的方法使Al涂层的厚度减薄到135 μm,对减薄后的试样在真空加热炉中分别进行了400℃×20 h和400℃×40 h的热处理.结果显示随着保温时间的延长,Al涂层全部转化为较高硬度和较好耐蚀性的Mg17Al12(β相)和Al3 Mg2(γ相)金属间化合物,其整体厚度达到263 μm,远超过热处理前Al涂层的厚度.
参考文献
| [1] | 陈振华.镁台金[M].北京:化学工业出版社,2004:1-5. |
| [2] | 翟春泉,曾小勤,丁文江,王渠东,吕宜振,徐小平.镁合金的开发与应用[J].机械工程材料,2001(01):6-10. |
| [3] | 王渠东 等.[J].材料导报,2000,14:53-56. |
| [4] | Magers n .[J].Light Metals Age,1997,55(7,8):60-62. |
| [5] | 曾荣昌,柯伟,徐永波,韩恩厚,朱自勇.Mg合金的最新发展及应用前景[J].金属学报,2001(07):673-685. |
| [6] | 徐贵东 等.[J].核动力工程,2005,28(02):68-72. |
| [7] | 张文毓.耐蚀镁合金研究与应用[J].轻金属,2007(08):40-43. |
| [8] | J E Gray et al.[J].Journal of Alloys and Compounds,2002,336:86-113. |
| [9] | 孙建刚 等.[J].材料导报,2007,21(5A):324-327. |
| [10] | 张津,麻彦龙,黄福祥,肖锋.镁合金表面铝涂层研究新进展[J].表面技术,2007(05):64-67. |
| [11] | Ying Li;Tao Zhang;Fuhui Wang .Effect of microcrystallization on corrosion resistance of AZ91D alloy[J].Electrochimica Acta,2006(14):2845-2850. |
| [12] | SHI Z M et al.[J].Corrosion Science,2006,48(11):3531-3546. |
| [13] | Umehara H.[J].Materials Science Forum,2003(419 -422):883-889. |
| [14] | Umehara H .[J].Japanese Journal of Institute of Light Metals,2000,50(03):109-117. |
| [15] | Normand B.[J].Surface and Coatings Technology,2000(123):278-287. |
| [16] | Ha Yong Lee.[J].Applied Surface Science,2005(252):1891-1898. |
| [17] | DYKHUIZEN R C et al.[J].Journal of Thermal Spray Technology,1998,7(02):205-212. |
| [18] | A.P.Alkhimov et al.[P].U.S.Patent 5 302 414,1994. |
| [19] | Julio Villafuerte .Corrosion Protection of Magnesium Alloys by Cold Spray[J].Advanced Materials & Processes,2007(9):53-54. |
| [20] | Lee H.[J].Materials Letters,2008(62):1579-1581. |
| [21] | BRIAN DEFORCE;TIMOTHY J. EDEN;HOWARD W. PICKERING .Cold-Sprayed Aluminum Coatings for Magnesium Aircraft Components[J].Materials Performance,2009(2):40-44. |
| [22] | Li W-Y.[J].Applied Surface Science,2007(253):7124-7130. |
| [23] | Xian-Jin Ning.[J].Surface and Coatings Technology,2008(202):1681-1687. |
| [24] | Vlcek J et al.[J].Journal of Thermal Spray Technology,2005,14(01):125-133. |
| [25] | Zhao ZB;Gillispie BA;Smith JR .Coating deposition by the kinetic spray process[J].Surface & Coatings Technology,2006(16/17):4746-4754. |
| [26] | Ning Xian-Jin.[J].Surface and Coatings Technology,2008(202):1681-1687. |
| [27] | Ajdelsztajn L et al.[J].Journal of Thermal Spray Technology,2006,15(02):184-190. |
| [28] | Richer P et al.[J].Journal of Thermal Spray Technology,2006,15(02):246-254. |
| [29] | Ajdelsztajn L;Zuniga A;Jodoin B;Lavernia EJ .Cold gas dynamic spraying of a high temperature Al alloy[J].Surface & Coatings Technology,2006(6):2109-2116. |
| [30] | Zhao ZB;Gillispie BA;Smith JR .Coating deposition by the kinetic spray process[J].Surface & Coatings Technology,2006(16/17):4746-4754. |
| [31] | Ha Yong Lee.[J].Applied Surface Science,2007(253):3496-3502. |
| [32] | Victor K. Champagne .The Repair of Magnesium Rotorcraft Components by Cold Spray[J].Journal of Failure Analysis and Prevention,2008(2):164-175. |
| [33] | Spencer K.[J].Scripta Materialia,2009(61):44-47. |
| [34] | Zhang, MX;Huang, H;Spencer, K;Shi, YN .Nanomechanics of Mg-Al intermetallic compounds[J].Surface & Coatings Technology,2010(14):2118-2122. |
| [35] | Cadney S.[J].Surface and Coatings Technology,2008(202):2801-2806. |
| [36] | Ajdelsztajn L;Zuniga A;Jodoin B;Lavernia EJ .Cold gas dynamic spraying of a high temperature Al alloy[J].Surface & Coatings Technology,2006(6):2109-2116. |
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