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Plain-bearing fatigue testing
LITERATURE AND CURRENT EVENTS
523
influence of material and certain construction factors on intensity of cavitating decay of blades. The main cause of decay is the presence of bolt holes. Diagrams, photographs. 5 ref. Conditions of Intensity ofCavitation Erosion. (in Russian) K. K. Shal’nev. Ixvestila Akademir Nauk XSSR. Otdelenie Teknicheskikh Nauk, I 95h. no. I. Jan. 1956, p, 3-20 1 h plates. Pecularities of cavitation erosion of hydraulic equipment, particularly turbines. Effect of h>-drodynamic factors. Micrographs, photographs, graphs, diagrams, tables. 83 ref. Wear of Metals by Sand Erosion. Werner .\. Stauffer. Metal Puogvrss, 1’. hg, jan. 1’]5h, 1’. 102-107. .i I 5-h test is able to determine sand erosion of various constructional materials to 1_,5O,, reproducibility and the results correlate with experience on hydraulic turbines. I)iagram. graphs, photographs, tables. Determination of Cavitation by Means of Brittle Coatings. (in Russian) E. \‘. Trifonox- and V. I. I)umov. Eizeugomashi~~ostvoenic, ,955, no. 1, Oct., p. r.s-~0. f‘omposition and application technology for varnish coatings. I!se in study of cavitation in centrifugal pumps. Causes of cavitation. Photographs, graphs. 4 ref. 4.2.2. Fwttiug Corrosion A Study of Fretting Wear in Mineral Oil. D. Godfrey. I.uhvication Engineering, v. 12, Jan.-Feb. 1956, p. 37-41; disc., p. 41-42. Factors involved in lubricated-fretting were determined by experiments in mineral oil under carefully controlled conditions. Tests with initially unlubricated specimens show marked effect of humidity. Graphs, diagrams, table. 6 ref. Characteristics and Prevention of Fretting Corrosion. R. B. Waterhouse. ~~~~~~~~ l?esigrz, v. 28, Jan. 26, 1956, p. TO&,x06, 108. General considerations of the damaging results and preventive measures. The Prevention of Fretting Corrosion. R. R. U’aterbouse. Corvosio+a Preuentiox and Control, v. 3, Mar. 19.56, p. 37-39. ‘This corrosion develops when two surfaces in contact and nominally at rest with respect to each other, experience slight periodic relative movement. r6 ref. 4.3. Machine
Parts
Hrarings Plain-Bearing Fatigue Testing. E. D. Rrailey and %V. J. Donnelly. ~o~~z~~~.~-
4.3.1.
VOL. 1
(~9.57158)
mtiorzs and Electronics, v. 3, Jan. 1956, p.
r6-
18.
Testing of engine-bearing systems using electronic and hydraulic techniques. I)iagrams, photographs, graph. Interpreting Service Damage in RollingType Bearings. Robert C. Case. Burecc~sof.Slzips Jourml, v. 5,
Oct. 10.56,p.
6-12.
before and tluring mounting; results of Improper mounting: inadequate Iubrication; wear from abrasives; corrosion; seizure and smearing; passage of electric current; fatigue. .\buse
Antidotes for Sleeve Bearing Failures. Anthony F. Kaminskas. 1~0% and St& AHgineer, v. 32, Oct. Igjj,p. 82-89; disc., 1,. 89. (‘onsiders failures due to improper design and improper maintenance, which can be more specifically attributed to insufficient clearsnce, poor alinement, clirt, overloading, and high temperature. Photographs, diagrams, graphs. Wear Life of Aluminum Gears. ;\. 11. Ylaschmeycr. Pvodzrct E~zgi~ee~~iug.Y. 27, Sept. 7956, p. 160-166. Development of analytical procedure for estimating probable Jife of Al gears; modification of Hertz’s theoretical equations ttt conform to actual test results; comparison of anodized and lInanodi~e(l gears. The Devefopment of Metal-Bonded Carbon Bearings. Harvey J3. Nudelman, (‘ord H. Sump, and Walter C. Troy. .4ST,tf Ruileti+?, 1956, no. 2x3, Apr. 1956, p. 62-69. A new metal-bonded (: bearing was developed to combine the desirable properties of C and metallic materials. Emphasis was placetl on the interpretation of wear technology in bearing research. Photographs, tables, graphs, micrographs. 1-5ref. 1.3.r. ~;mr apzd f. C. 6nginP.s Change in Hardness of Friction Surface of Engine Cylinders During Breaking-In. (in Russian) L. A. I)em’ianov and Fi. .\. Iiolobovniko\*. J%SflZik9%ZShi%XtYO~?Ziiff, V. 3,j, JJ<,.IL, f kC. ,955, 1'. 28-29. Rate and depth of hardening; time, load. lubrication, and wear factors. Relation between breaking-in rate and service life of parts. Graphs, micrograph, diagram. 3 ref. Methods for Studying Wear of Case-Hardened Steel Used in Manufacture of Gears. (in Russian) 1,. hI. I~el’dman and M. A Ralter. %~~uodskoicz laboratoviia, v. 21, no. i 2. 1955, p. r.501-1503. Studies of variation in microhardness during wear. Effects of temperature and contact stresses, Graphs, diagrams, micrograph.
523
influence of material and certain construction factors on intensity of cavitating decay of blades. The main cause of decay is the presence of bolt holes. Diagrams, photographs. 5 ref. Conditions of Intensity ofCavitation Erosion. (in Russian) K. K. Shal’nev. Ixvestila Akademir Nauk XSSR. Otdelenie Teknicheskikh Nauk, I 95h. no. I. Jan. 1956, p, 3-20 1 h plates. Pecularities of cavitation erosion of hydraulic equipment, particularly turbines. Effect of h>-drodynamic factors. Micrographs, photographs, graphs, diagrams, tables. 83 ref. Wear of Metals by Sand Erosion. Werner .\. Stauffer. Metal Puogvrss, 1’. hg, jan. 1’]5h, 1’. 102-107. .i I 5-h test is able to determine sand erosion of various constructional materials to 1_,5O,, reproducibility and the results correlate with experience on hydraulic turbines. I)iagram. graphs, photographs, tables. Determination of Cavitation by Means of Brittle Coatings. (in Russian) E. \‘. Trifonox- and V. I. I)umov. Eizeugomashi~~ostvoenic, ,955, no. 1, Oct., p. r.s-~0. f‘omposition and application technology for varnish coatings. I!se in study of cavitation in centrifugal pumps. Causes of cavitation. Photographs, graphs. 4 ref. 4.2.2. Fwttiug Corrosion A Study of Fretting Wear in Mineral Oil. D. Godfrey. I.uhvication Engineering, v. 12, Jan.-Feb. 1956, p. 37-41; disc., p. 41-42. Factors involved in lubricated-fretting were determined by experiments in mineral oil under carefully controlled conditions. Tests with initially unlubricated specimens show marked effect of humidity. Graphs, diagrams, table. 6 ref. Characteristics and Prevention of Fretting Corrosion. R. B. Waterhouse. ~~~~~~~~ l?esigrz, v. 28, Jan. 26, 1956, p. TO&,x06, 108. General considerations of the damaging results and preventive measures. The Prevention of Fretting Corrosion. R. R. U’aterbouse. Corvosio+a Preuentiox and Control, v. 3, Mar. 19.56, p. 37-39. ‘This corrosion develops when two surfaces in contact and nominally at rest with respect to each other, experience slight periodic relative movement. r6 ref. 4.3. Machine
Parts
Hrarings Plain-Bearing Fatigue Testing. E. D. Rrailey and %V. J. Donnelly. ~o~~z~~~.~-
4.3.1.
VOL. 1
(~9.57158)
mtiorzs and Electronics, v. 3, Jan. 1956, p.
r6-
18.
Testing of engine-bearing systems using electronic and hydraulic techniques. I)iagrams, photographs, graph. Interpreting Service Damage in RollingType Bearings. Robert C. Case. Burecc~sof.Slzips Jourml, v. 5,
Oct. 10.56,p.
6-12.
before and tluring mounting; results of Improper mounting: inadequate Iubrication; wear from abrasives; corrosion; seizure and smearing; passage of electric current; fatigue. .\buse
Antidotes for Sleeve Bearing Failures. Anthony F. Kaminskas. 1~0% and St& AHgineer, v. 32, Oct. Igjj,p. 82-89; disc., 1,. 89. (‘onsiders failures due to improper design and improper maintenance, which can be more specifically attributed to insufficient clearsnce, poor alinement, clirt, overloading, and high temperature. Photographs, diagrams, graphs. Wear Life of Aluminum Gears. ;\. 11. Ylaschmeycr. Pvodzrct E~zgi~ee~~iug.Y. 27, Sept. 7956, p. 160-166. Development of analytical procedure for estimating probable Jife of Al gears; modification of Hertz’s theoretical equations ttt conform to actual test results; comparison of anodized and lInanodi~e(l gears. The Devefopment of Metal-Bonded Carbon Bearings. Harvey J3. Nudelman, (‘ord H. Sump, and Walter C. Troy. .4ST,tf Ruileti+?, 1956, no. 2x3, Apr. 1956, p. 62-69. A new metal-bonded (: bearing was developed to combine the desirable properties of C and metallic materials. Emphasis was placetl on the interpretation of wear technology in bearing research. Photographs, tables, graphs, micrographs. 1-5ref. 1.3.r. ~;mr apzd f. C. 6nginP.s Change in Hardness of Friction Surface of Engine Cylinders During Breaking-In. (in Russian) L. A. I)em’ianov and Fi. .\. Iiolobovniko\*. J%SflZik9%ZShi%XtYO~?Ziiff, V. 3,j, JJ<,.IL, f kC. ,955, 1'. 28-29. Rate and depth of hardening; time, load. lubrication, and wear factors. Relation between breaking-in rate and service life of parts. Graphs, micrograph, diagram. 3 ref. Methods for Studying Wear of Case-Hardened Steel Used in Manufacture of Gears. (in Russian) 1,. hI. I~el’dman and M. A Ralter. %~~uodskoicz laboratoviia, v. 21, no. i 2. 1955, p. r.501-1503. Studies of variation in microhardness during wear. Effects of temperature and contact stresses, Graphs, diagrams, micrograph.