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Measurement of metallic film densities by an optical technique
LITERATURE AND CURRENT EVENTS Experimental Study of Spline Wear and Lubrication Effects. W. D. Weatherford, Jr., M. L. Valtierra and P. M. Ku, ASLE Trans., 9 (1966) 171-178. The development of a laboratory method for simulating the wear experienced by misaligned splines is described, and typical experimental data are presented. The experimental program involves the use of matched spline specimens subjected to relative oscillatory motion simulating angular misalignment, under the influence of an applied torque. The test specimens are maintained at 250”F, either with or without lubrication, in the presence of dry air, most air, JP-5 fuel, or JP-6 fuel. The extent of spline wear is quantitatively monitored on a continuous basis. The experimental results obtained with above environments and seven different greases reveal significantly different wear mitigation characteristics for the various greases. Moreover, the influences of the spline environments differ for the different greases. 6. MEASUREMENTS
AND TESTING
Design Criteria for Wear Testing Machines ; Application of Design Criteria to Existing Wear Testing Machines. (in French) J. P. Vichard and M. Godet, Compt. Rend., 260 (1965)
5472;
262 (1966)
532.
The design of wear-testing machines should follow five fundamental principles. Some currently used bench tests (4-ball, Bartel I. F. E., TIMKEN-Disc, Pin-and-disc) are examined in the light of these principles.
409 alignment, surface tension, bulk modulus of the glass capillary, density of the pressurizing gas, and solubility at the gas-liquid interface are discussed. Internal repeatability, as well as correlation with the ASME pressure-viscosity project, falling-ball viscometer, is shown. Viscosity-pressure data for several fluids and the effect of dissolved gas on the pressure-viscosity properties are demonstrated. Measurement of Metallic Film Densities by an Optical Technique. A. R. Wolter, J. Appl. Phys., 36 (8) (1965) 2377-2381.
Detecting Cross-contamination of Lubricants Using Non-licensed Amounts of a Radioisotope. R. L. Anderson and R. E. Black, Lubrication Eng., ar (II) (1965) 474-478; 3 figs., 3 refs. A radiometric procedure for detecting fluid leakage between the differential and automatic transmission sections of a transaxle has been developed. Measurements of radioactivity in samples of automatic transmission fluid provide a direct indication of the amount of gear lubricant contaminant present. 7. METAL
A Note on the Role of Microscopically Trapped Lubricant at the Tool-Work Interface. H. Kudo, Intern. J. Mech. Sci., 7 (5) (1965) 383-388.
For abstract (1966)
Development of a Precision Capillary-type Pressure Viscometer. E. E. Klaus, R. H. Johnson and G. P. Fresco, ASLE
Trans.,
9 (1966)
113-120.
The design, calibration, and use of a PRL high-pressure capillary viscometer for the range of o to 10,000 p.s.i.g. is presented. The effects of drainage, kinetic-energy correction,
WORKING
see Appl.
Mech.
Rev.,
19
(2)
183.
Performance of Tungsten Carbide, Titanium Carbide, and Oxide Tools in Finish Turning of C-30 Gray Iron. I. Ham, T. Hoshi and G. L. Thuering, Trans. ASME,
87B
For abstract (1966)
(3) (1965) 344-348. see A#. Mech.
(J. Eng. Ind.) Rev., 19 (I)
35. Wear,
g (1966)
398-409
New Books, Proceedings, Reports, Documentation Materials
Science
Irreversible Effects of High Pressure and Temperature on Materials. (ASTM Materials Science Series, Vol. 7.) A Symposium presented at the International Conference on Materials, Philadelphia, Pa., Feb. 1964. ASTM Spec. Tech. Publ. No. 374. Am. Sot. Testing Materials, Philadelphia, 1965, 173 pp. ; price: $ 8.50.
The subject matter presented in six lectures included nonmetallic inorganic materials, organic materials, electronic materials, metals and alloys. Although not directly related to problems of friction and wear some of the results, e.g. on the change in hardness and more general plastic properties, are of interest to wear technologists. New materials formed by high-pressure reactions may one day find application in friction couples. Wear, 9 (1966) 409-414
AND TESTING
Design Criteria for Wear Testing Machines ; Application of Design Criteria to Existing Wear Testing Machines. (in French) J. P. Vichard and M. Godet, Compt. Rend., 260 (1965)
5472;
262 (1966)
532.
The design of wear-testing machines should follow five fundamental principles. Some currently used bench tests (4-ball, Bartel I. F. E., TIMKEN-Disc, Pin-and-disc) are examined in the light of these principles.
409 alignment, surface tension, bulk modulus of the glass capillary, density of the pressurizing gas, and solubility at the gas-liquid interface are discussed. Internal repeatability, as well as correlation with the ASME pressure-viscosity project, falling-ball viscometer, is shown. Viscosity-pressure data for several fluids and the effect of dissolved gas on the pressure-viscosity properties are demonstrated. Measurement of Metallic Film Densities by an Optical Technique. A. R. Wolter, J. Appl. Phys., 36 (8) (1965) 2377-2381.
Detecting Cross-contamination of Lubricants Using Non-licensed Amounts of a Radioisotope. R. L. Anderson and R. E. Black, Lubrication Eng., ar (II) (1965) 474-478; 3 figs., 3 refs. A radiometric procedure for detecting fluid leakage between the differential and automatic transmission sections of a transaxle has been developed. Measurements of radioactivity in samples of automatic transmission fluid provide a direct indication of the amount of gear lubricant contaminant present. 7. METAL
A Note on the Role of Microscopically Trapped Lubricant at the Tool-Work Interface. H. Kudo, Intern. J. Mech. Sci., 7 (5) (1965) 383-388.
For abstract (1966)
Development of a Precision Capillary-type Pressure Viscometer. E. E. Klaus, R. H. Johnson and G. P. Fresco, ASLE
Trans.,
9 (1966)
113-120.
The design, calibration, and use of a PRL high-pressure capillary viscometer for the range of o to 10,000 p.s.i.g. is presented. The effects of drainage, kinetic-energy correction,
WORKING
see Appl.
Mech.
Rev.,
19
(2)
183.
Performance of Tungsten Carbide, Titanium Carbide, and Oxide Tools in Finish Turning of C-30 Gray Iron. I. Ham, T. Hoshi and G. L. Thuering, Trans. ASME,
87B
For abstract (1966)
(3) (1965) 344-348. see A#. Mech.
(J. Eng. Ind.) Rev., 19 (I)
35. Wear,
g (1966)
398-409
New Books, Proceedings, Reports, Documentation Materials
Science
Irreversible Effects of High Pressure and Temperature on Materials. (ASTM Materials Science Series, Vol. 7.) A Symposium presented at the International Conference on Materials, Philadelphia, Pa., Feb. 1964. ASTM Spec. Tech. Publ. No. 374. Am. Sot. Testing Materials, Philadelphia, 1965, 173 pp. ; price: $ 8.50.
The subject matter presented in six lectures included nonmetallic inorganic materials, organic materials, electronic materials, metals and alloys. Although not directly related to problems of friction and wear some of the results, e.g. on the change in hardness and more general plastic properties, are of interest to wear technologists. New materials formed by high-pressure reactions may one day find application in friction couples. Wear, 9 (1966) 409-414