ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In this paper, boron films were deposited on W6Mo5Cr4V2 high speed steel (HSS) via ion beamsputtering of boron target and implanted with polyenergetic(50 keV, 30 keV, 10 keV) nitrogen ions.The mechanical properties of the implanted layer were tested by Vicker`s hardness and SKODA weartester. The microstructure of the implanted layer was analysed by X-ray Photoelectron Spectroscopy(XPS) and Fourier Infrared (IR) spectroscopy. Experimental results showed that the HSS substratewas intensified obviously after the implantation of boron and nitrogen ion. When the nitrogen doseequals to 12.8×1017 ions/cm2, the hardness reaches its highest value, HV1982 and the relativewearability was increased for about ten times under the load of 30N. XPS depth concentration profilesshow an interfacial mixing between film and substrate, and compared with monoenergetic ionimplantation, polyenergetic ion implanted layer have an even N/B distribution. Combined with XPSand IR analysis results, It can conclude that boron exists in the form of boron nitride and first as a-BNor h-BN, with the depth decreasing, it has a tendency to transform to c-BN
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/57/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.373-374.396.pdf
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