In order to solve the problem that it is difficult to prepare highly amorphous Ni-B alloy coating, the control variable method was used to explore the influence law of bath composition on the amorphous process of Ni-B alloy coating, and the electrodeposition method was used to prepare high-B amorphous Ni-B composite coating. X-ray diffraction (XRD) was used to characterize the phase structure of the sedimentary layer, and field emission scanning electron microscopy (FESEM) and energy spectrum analysis (EDS) were used to investigate the microscopic morphology and element distribution composition of the sedimentary layer. The results show that the sedimentary layer can be changed from crystalline state to amorphous state by controlling the composition of solution. The resulting sediments are highly amorphous. This system can be electrodeposited to obtain amorphous Ni-B alloy sediments with a complete, close and meticulous surface, and almost no metal crystal diffraction peak. The content of B in the sediments can be increased to 10.21%(mass fraction).
LITVINENKO Y M . Production of metal powders by the rapid cooling of a melt[J]. Powder Metallurgy & Metal Ceramics, 1998, 37 (9): 460- 463.
LV P , WANG H P . Effects of undercooling and cooling rate on peritectic phase crystallization within Ni-Zr alloy melt[J]. Meta-llurgical & Materials Transactions B, 2018, 49 (2): 1- 10.
ZHANG D , CHEN C , WANG X , et al. Synthesis of PtAu alloy nanocrystals in micelle nanoreactors enabled by flash heating and cooling[J]. Particle & Particle Systems Characterization, 2018, 35 (5): 1700413.
GIAMPAOLO A R D , ORDONEZ J G , GUGLIEMACCI J M , et al. Electroless nickel-boron coatings on metal carbides[J]. Surf Coat Tech, 1997, 89 (1): 127- 131.
XUE D , DENG J F . Amorphous Ni-B alloy/ceramic composite membrane prepared by an improved electroless plating technique[J]. Materials Letters, 2001, 47 (4/5): 271- 275.
WEN M , LI L J , LIU Q , et al. The preparation of well-dispersed Ni-B amorphous alloy nanoparticles at room temperature[J]. Journal of Alloys & Compounds, 2008, 455 (1/2): 510- 515.
CORREA E , ZULETA A A , GUERRA L , et al. Coating development during electroless Ni-B plating on magnesium and AZ91D alloy[J]. Surf Coat Tech, 2013, 232, 784- 794.
SUN J , ZHANG X W . Preparation and properties of rare earth modified electroless plating coating on titanium alloy surface[J]. Surface Technology, 2018, 47 (4): 196- 200.
WU W P , JIANG J J . Effect of plating temperature on electroless amorphous Ni-P film on Si wafers in an alkaline bath solution[J]. Applied Nanotechnology, 2017, 7 (6): 325- 333.
HUR K H , JEONG J H , LEE D N . Microstructures and crysta-llization of electroless Ni-P deposits[J]. Journal of Materials Science, 1990, 25 (5): 2573- 2584.
DEHGHANIAN , CHANGIZ , MADAH , et al. Investigations on the wear mechanisms of electroless Ni-B coating during dry sli-ding and endurance life of the worn surfaces[J]. Surface & Coa-tings Technology, 2015, 282, 6- 15.
CELIK I , KARAKAN M , BULBUL F . Investigation of struc-tural and tribological properties of electroless Ni-B coated pure titanium[J]. Proceedings of the Institution of Mechanical Engineers: Part J, 2016, 230 (1): 57- 63.
VITRY V , KANTA A-F , DELAUNOIS F . Mechanical and wear characterization of electroless nickel-boron coatings[J]. Surface and Coatings Technology, 2011, 206 (7): 1879- 1885.
GILLEY K L , NINO J C , RIDDLE Y W , et al. Heat treatments modify the tribological properties of nickel boron coatings[J]. ACS Appl Mater Interfaces, 2012, 4 (6): 3069- 3076.
MUKHOPADHYAY A , DUARI S , BARMAN T K , et al. Tribological performance optimization of electroless Ni-B coating under lubricated condition using hybrid grey fuzzy logic[J]. Journal of the Institution of Engineers, 2016, 97 (2): 215- 231.
BAGHBANAN M , ERB U , PALUMBO G . Towards the application of nanocrystalline metals in MEMS[J]. Physica Status Solidi(A) Applications and Materials, 2006, 203 (6): 1259- 1264.
SHI Z Y , WANG D Q , DING Z M . Surface strengthening pure copper by Ni-B coating[J]. Applied Surface Science, 2004, 221 (1/4): 62- 68.
OGIHARA H , UDAGAWA K , SAJI T . Effect of boron content and crystalline structure on hardness in electrodeposited Ni-B alloy films[J]. Surface and Coatings Technology, 2012, 206 (Su-ppl 11/12): 2933- 2940.
MOHAMMAD M , ALIREZA A . Microstructural characterization of electrodeposited and heat-treated Ni-B coatings[J]. Surface and Coatings Technology, 2018, 349, 442- 451.
SHAKOOR R A , KAHRAMAN R , WAWARE U , et al. Properties of electrodeposited Ni-B-Al2O3 composite coatings[J]. Materials & Design, 2014, 64, 127- 135.
MONTEIRO O R , MURUGESAN S , KHABASHESKU V . Electroplated Ni-B films and Ni-B metal matrix diamond nanocomposite coatings[J]. Surface and Coatings Technology, 2015, 272, 291- 297.
PENG Q Y , FEI J Y , CHEN J T , et al. Fast electrodeposition of amorphous Ni-P/Al2O3composite coatings deposited by Bi-directional pulse[J]. Journal of Materials Engineering, 2018, 46 (3): 81- 90.
WEI S Q , OYANAGI H , LI Z R , et al. X-ray-absorption fine structure study on devitrification of ultrafine amorphous Ni-B alloys[J]. Physical Review B Condensed Matter, 2001, 63 (22): 224201- 1.