LUBRICATION OF TITANIUM. Period covered : December 15, 1957 to December 15, 1958
S>The adaptation of the crossed-cylinder specimen associated with specimen preparation in the investigation of various titaniuni-lubricant systems. It is shown that the crossed-cylinder test results correlate closely with the Shell Four-Ball test results. The crossedcylinder tester was used to evaluate the wear resistance of cyanided and electroless-nickel plated specimens of six titanium alloys. The results show that electrolessnickel plated titanium, using conventional lubricants, is superior to the best cyanided titanium systems studied. Significant differences are shown between the wear resistance of the six nickel plated alloys in the same lubricant, and the same may be said for the various cyanided titanium alloys. The best lubricants to use with cyanided titanium alloys are the same as for the untreated alloys; Halocarbon 11-14 is generally superior to polypropylene glycol 1025, while the lubricants normally used for steel and electroless nickel are definitely inferior to these two. The comparison of wear rates for two metals having widely different moduli of elasticity has been considered, and a method of handling the problem proposed. On this basis it is shown that the wear rate of the best electroless nickel- plated titanium alloys is equivalent to 52100 steel. Carburized iron-plated titanium was also investigated to a limited extent and found to give results approaching 52100 steel. (auth)
- Research Organization:
- Clevite Research Center, Cleveland
- DOE Contract Number:
- AF33(616)-3350
- NSA Number:
- NSA-13-011871
- OSTI ID:
- 4274661
- Report Number(s):
- WADC-TR-57-61(Pt. 3)
- Resource Relation:
- Other Information: Project title: METALLIC MATERIALS. Task title: TITANIUM METAL AND ALLOYS. Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- United States
- Language:
- English
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