1 Key Laboratory of Advanced Structural Materials and Application Technology of Jiangsu Province, Nanjing 211167, China 2 School of Materials Engineering, Nanjing Institute of Technology, Nanjing 211167, China
Ni based composite coatings containing micro-and nano-TiC particles were prepared by dipulse electrodepositing in Watt's nickel solution.The effect of nano-TiC content in the solution on the micro morphology, microstructure, hardness and wear resistance of composite coatings was investigated.The results show that the agglomeration of composite coatings of Ni-TiC appears and the density decreases by adding nano-TiC particles in electrolyte, the microstructure of coatings consists of Ni and TiC phase; the hardness of composite coatings firstly increases and then decreases with increasing the content of nano-TiC in bath; however, the friction coefficient of coatings firstly decreases and then increases, the maximum value of microhardness of coating with 445HV is achieved when containing 6.0g/L nano-TiC in bath, at the same time, the smaller friction coefficient of coating is about 0.22.The wear mechanism is mainly abrasive wear.Coatings under the oxidation condition at 900℃ for 100h show the best oxidation resistance which the mass gain with 6.828mg/cm2 is 1/2 of that of micro-TiC composite coating.
SOLDAN J , MUSIL J . Structure and mechanical properties of DC magnetron sputtered TiC/Cu films[J]. Vacuum, 2006, 81 (4): 531- 538.
doi: 10.1016/j.vacuum.2006.07.013
2
AKHTAR F , ASKARI S J , SHAH J A , et al. Processing microstructure and mechanical properties of TiC-465 stainless steel/465 stainless steel layer composites[J]. Journal of Alloys and Compounds, 2007, 439 (1-2): 287- 293.
doi: 10.1016/j.jallcom.2006.08.073
YAN S X , DONG S Y , XU B S , et al. Effect of preheating temperature on microstructure and property of laser clad Ni-based alloy coating on gray cast iron substrate[J]. Journal of Materials Engineering, 2015, 43 (1): 30- 36.
4
WILSON J M , SHIN Y C . Microstructure and wear properties of laser-deposited functionally graded Inconel 690 reinforced with TiC[J]. Surface and Coatings Technology, 2012, 207, 517- 522.
doi: 10.1016/j.surfcoat.2012.07.058
HOU D H , WANG Y M , LIU X M , et al. Microstructure and properties of Ni/TiC composite coating prepared with laser clad TiC[J]. Journal of Changchun University of Technology (Natural Science Edition), 2008, 29 (2): 121- 124.
QU T Y , ZHAO H Y , OUYANG J . Study of high-temperature stability of a TiC/Ni-Al composite coating prepared by laser deposition[J]. Rare Metals and Cemented Carbides, 2008, 36 (1): 11- 15.
7
YUAN X Y , LIU G H , JIN H B , et al. In situ synthesis of TiC reinforced metal matrix composite (MMC) coating by self propagating high temperature synthesis (SHS)[J]. Journal of Alloys and Compounds, 2011, 509 (30): L301- L303.
doi: 10.1016/j.jallcom.2011.04.150
8
SHANAGHI A , CHU P K , ALI REZA S R , et al. Structure and corrosion resistance of Ti/TiC coatings fabricated by plasma immersion ion implantation and deposition on nickel-titanium[J]. Surface and Coatings Technology, 2013, 229, 151- 155.
doi: 10.1016/j.surfcoat.2012.07.063
WU Y P , LIN P H , CAO M , et al. Cavitation erosion characteristics of Ni60+TiC plasma cladding layer[J]. Transactions of Materials and Heat Treatment, 2007, 28 (5): 128- 133.
LIU Y F , LIU X B , ZHANG W , et al. Microstructure and wear resistance of plasma clad TiC/γ-(Fe, Ni) composite coating[J]. Transactions of Materials and Heat Treatment, 2012, 33 (3): 119- 123.
11
QI X , EIGENG N , AUST E , et al. Two-body abrasive wear of nano-and microcrystalline TiC-Ni-based thermal spray coatings[J]. Surface and Coatings Technology, 2006, 200 (16-17): 5037- 5047.
doi: 10.1016/j.surfcoat.2005.05.007
12
KARBASI M , YAZDIAN N , VAHIDIAN A . Development of electro-co-deposited Ni-TiC nano-particle reinforced nanocomposite coatings[J]. Surface and Coatings Technology, 2012, 207, 587- 593.
doi: 10.1016/j.surfcoat.2012.07.083
13
AFROUKHTEH S , DEHGHANIAN C , EMAMY M . Preparation of the Ni-P composite coating co-deposited by nano TiC particles and evaluation of its corrosion property[J]. Applied Surface Science, 2012, 258 (7): 2597- 2601.
doi: 10.1016/j.apsusc.2011.10.101
14
SAHAR A , CHANGIZ D , MASSOOD E . Corrosion behavior of Ni-P/nano-TiC composite coating prepared in electroless baths containing different types of surfactant[J]. Progress in Natural Science:Materials International, 2012, 22 (5): 480- 487.
doi: 10.1016/j.pnsc.2012.10.005
MA H T , GE X L . Effect of silicon carbide particles size on wear resistance of electroless nickel-phosphorous-silicon carbide composite coatings of magnesium alloy substrate[J]. Materials Protection, 2013, 46 (4): 13- 15.
16
SRIVASTAVA M , GRIPS V K W , JAIN A , et al. Influence of SiC particle size on the structure and tribological properties of Ni-Co composites[J]. Surface and Coatings Technology, 2007, 202 (2): 310- 318.
doi: 10.1016/j.surfcoat.2007.05.078