Journal
MATERIALS CHEMISTRY AND PHYSICS
Volume 115, Issue 1, Pages 467-472Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2009.01.016
Keywords
Titanium alloy; Nickel-boron coatings; Surface hardening; Diffusion; Induction heating
Categories
Ask authors/readers for more resources
Electroless nickel-boron coatings on Ti-6Al-4V alloy were obtained by immersion in nickel chloride aqueous solutions with sodium borohydride. The diffusion treatments were carried out by induction heating using a superficial magnetic field intensity (current in the coil) that allows to achieve a surface temperature of 1020 degrees C in 100 s. The effect of induction heating on microstructure and mechanical properties of the Ni-B coated samples were evaluated by SEM, energy dispersive X-ray spectroscope (EDS), wavelength-dispersive spectrometry (WDS), glow discharge optical spectrometer (GDOS) and microhardness testing and the results were compared with those obtained previously by heat treatments in oven at 800 degrees C for 40 h. Surface hardness higher than 900 HV100 and depth of hardening thicker than 300 mu m were achieved by diffusion of the Ni-B layer carried out by induction heating. (C) 2008 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available