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Preliminary Investigation of Surface Treatments to Enhance the Wear Resistance of 60-NitinolThe use of protective surface treatments on 60-Nitinol (60wt%Ni-40wt%Ti) was studied. Various nitriding techniques as well as a (Ti, Al)N coating were evaluated visually, microscopically, and by hardness and scratch testing. The chemical composition of the surface treatments was investigated by x-ray techniques. The results indicate that very hard (greater than 1,000 HK) and adherent surface layers can be produced on 60-Nitinol. Further work is needed to determine the tribological properties of these surface treatments in relevant operating environments.
Document ID
20160009222
Acquisition Source
Glenn Research Center
Document Type
Technical Memorandum (TM)
Authors
Stanford, Malcolm K. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
July 20, 2016
Publication Date
July 1, 2016
Subject Category
Metals And Metallic Materials
Report/Patent Number
E-19245
NASA/TM-2016-219121
GRC-E-DAA-TN32806
Funding Number(s)
WBS: WBS 109492.02.03.02.01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Nitinol
hardness testing
surface treatments

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