Effects of post-spraying heat treatment on wear resistance of WC–Co nanocomposite coatings

作者: J.H. Kim , K.H. Baik , B.G. Seong , S.Y. Hwang

DOI: 10.1016/J.MSEA.2006.02.320

关键词:

摘要: Abstract The potential of post-spraying heat treatment to improve the wear resistance WC–Co nanocomposite coating has been investigated in present study. Since thermally sprayed coatings are much susceptible detrimental reactions decarburization and WC decomposition, there is certain limitation optimization spray parameters performance. Heat can offer alternative solution for promotion resistance. High velocity oxyfuel was heat-treated at a range temperatures between 400 1000 °C, abrasive then evaluated. influence discussed terms microstructural features hardness coatings. greatly improved by proper temperature.

参考文章(11)
K. Jia, T.E. Fischer, B. Gallois, Microstructure, hardness and toughness of nanostructured and conventional WC-Co composites Nanostructured Materials. ,vol. 10, pp. 875- 891 ,(1998) , 10.1016/S0965-9773(98)00123-8
D.A Stewart, P.H Shipway, D.G McCartney, Influence of heat treatment on the abrasive wear behaviour of HVOF sprayed WC–Co coatings Surface & Coatings Technology. ,vol. 105, pp. 13- 24 ,(1998) , 10.1016/S0257-8972(98)00444-7
B.R. Marple, J. Voyer, J.-F. Bisson, C. Moreau, Thermal spraying of nanostructured cermet coatings Journal of Materials Processing Technology. ,vol. 117, pp. 418- 423 ,(2001) , 10.1016/S0924-0136(01)00798-1
B.H Kear, G Skandan, R.K Sadangi, Factors controlling decarburization in HVOF sprayed nano-WC/Co hardcoatings Scripta Materialia. ,vol. 44, pp. 1703- 1707 ,(2001) , 10.1016/S1359-6462(01)00867-3
Jianhong He, Julie M Schoenung, A review on nanostructured WC–Co coatings Surface & Coatings Technology. ,vol. 157, pp. 72- 79 ,(2002) , 10.1016/S0257-8972(02)00141-X
Jianhong He, Michael Ice, Enrique J. Lavernia, Steven Dallek, Synthesis of nanostructured WC-12 Pct Co coating using mechanical milling and high velocity oxygen fuel thermal spraying Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 31, pp. 541- 553 ,(2000) , 10.1007/S11661-000-0289-6
D.A. Stewart, P.H. Shipway, D.G. McCartney, Abrasive wear behaviour of conventional and nanocomposite HVOF-sprayed WC–Co coatings Wear. ,vol. 225, pp. 789- 798 ,(1999) , 10.1016/S0043-1648(99)00032-0