为研究高温下掺入Ag的CrN涂层的组织性能,在沉积温度为800℃的条件下采用直流反应磁控溅射技术制备CrN/Ag硬质涂层.采用扫描电镜(SEM)、EDS能谱仪、X射线衍射(XRD)和维氏硬度计,综合分析了800℃沉积温度下,对不同Ag掺杂情况下CrN/Ag涂层的组织结构和性能特点,以及700℃热处理工艺对其的影响.结果表明,Ag添加导致CrN晶相生长由(200)择优取向向无择优取向转变,并使得CrN/Ag涂层表面粗糙化;少量Ag(7％(原子分数))添加可提高涂层硬度,过多Ag(21％(原子分数))添加明显降低涂层硬度;高温热处理(700℃/1h)后,纯CrN涂层的氧化并不明显,但是,随Ag含量增加,涂层氧化程度逐渐增加,且在高Ag(21％(原子分数))涂层中Ag溢出现象显著;涂层氧化及Ag溢出导致涂层硬度显著降低.
参考文献
| [1] | Cunha L;Andritschky M;Pischow K .Microstructure of CrN coatings produced by PVD techniques[J].Thin Solid Coatings,1993,355-356:465-471. |
| [2] | 韩增虎,田家万,戴嘉维,张慧娟,李戈扬.磁控溅射CrNx薄膜的制备与力学性能[J].功能材料,2002(05):500-502. |
| [3] | 周庆刚,白新德,徐健,马文军,王玉岭,任永岗,王殿儒.CrN/Cr镀膜改性的H13钢摩擦学性能[J].清华大学学报(自然科学版),2003(06):762-765. |
| [4] | Krishnamurthy S;Reimanis I .Multiple cracking in CrN and Cr2N films on brass[J].Surface & Coatings Technology,2005(2/3):291-298. |
| [5] | Gunter B;Christoph F;Erhard B .Development of chromium nitride coatings substituting titanium nitride[J].Surface and Coatings Technology,1996,86-87:184-191. |
| [6] | Polcar T;Kubart T;Novak R;Kopecky L;Siroky P .Comparison of tribological behaviour of TiN, TiCN and CrN at elevated temperatures[J].Surface & Coatings Technology,2005(1/3):192-199. |
| [7] | Endrino JL.;Nainaparampil JJ.;Krzanowski JE. .Microstructure and vacuum tribology of TiC-Ag composite coatings deposited by magnetron sputtering-pulsed laser deposition[J].Surface & Coatings Technology,2002(1):95-101. |
| [8] | Lince J R .Tribology of co-sputtered nanocomposite Au/MoS2 solid lubricant coatings over a wide contact stress range[J].Tribology Letters,2004,17(03):419-428. |
| [9] | Mulligan CP;Gall D .CrN-Ag self-lubricating hard coatings[J].Surface & Coatings Technology,2005(5/6):1495-1500. |
| [10] | Harald Kostenbauer;Gerardo A. Fontalvo;Christian Mitterer;Jozef Keckes .Tribological Properties of TiN/Ag Nanocomposite Coatings[J].Tribology letters,2008(1):53-60. |
| [11] | Kutschej K;Mitterer C;Mulligan C P et al.High-temperature tribological behavior of CrN-Ag self-lubricating coatings[J].Advanced Engineer Materials,2006,8(11):1125-1129. |
| [12] | C. P. Mulligan;T. A. Blanchet;D. Gall .CrN-Ag nanocomposite coatings: High-temperature tribological response[J].Wear: an International Journal on the Science and Technology of Friction, Lubrication and Wear,2010(1/2):125-131. |
| [13] | Mulligan, CP;Blanchet, TA;Gall, D .CrN-Ag nanocomposite coatings: Effect of growth temperature on the microstructure[J].Surface & Coatings Technology,2008(5/7):584-587. |
| [14] | Mckenzie D R;Yin Y;Mcfall W D .The orientation dependence of elastic strain energy in cubic crystalsand its application to preferred orientation in titanium nitrides thin coatings[J].Journal of Physics,1996,32:5883-5890. |
| [15] | Zhang, XH;Jiang, JQ;Yuqiao, Z;Lin, JL;Wang, FL;Moore, JJ .Effect of carbon on TiAlCN coatings deposited by reactive magnetron sputtering[J].Surface & Coatings Technology,2008(5/7):594-597. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%