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Internal stresses in wear and corrosion resistant amorphous metallic coatings of (W/0.6/Re/0.4/)76B24 and (Mo/0.6/Ru/0.4/)82B18Hard protective coatings in the W-Re-B and Mo-Ru-B alloy systems have been deposited by magnetron sputtering onto soda-lime glass and heat-treated AISI 52100 steel substrates. X-ray diffraction has confirmed the amorphous nature of the as-deposited coatings, and their crystallization temperatures were determined by differential thermal analysis to be 1000 and 790 C for W-Re-B and Mo-Ru-B coatings, respectively. Both coatings exhibit high microhardness; Mo-Ru-B, in addition, has excellent corrosion resistance by comparison with pure Mo at high anodic potentials. Attention is given to the influence of internal stresses on the protective properties of the coatings deposited under different conditions.
Document ID
19850058230
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Thakoor, A. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Lamb, J. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Williams, R. M.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Khanna, S. K.
(California Institute of Technology Jet Propulsion Laboratory, Pasadena, United States)
Date Acquired
August 12, 2013
Publication Date
June 1, 1985
Publication Information
Publication: Journal of Vacuum Science and Technology A
Volume: 3
ISSN: 0734-2101
Subject Category
Metallic Materials
Accession Number
85A40381
Distribution Limits
Public
Copyright
Other

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