Accession Number : AD0702289

Title :   INVESTIGATION OF WEAR RESISTANCE OF ALUMINUM ALLOYS V95, VAD23 AND D16,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Kestner,O. E. ; Spektorova,S. I. ; Gerasimova,I. I. ; Kondrashina,M. V.

Report Date : 24 OCT 1969

Pagination or Media Count : 11

Abstract : In some domains of technology it has become necessary to use aluminum alloys as the materials of parts of gear and friction drives (gearings, cams, etc.) which must meet high requirements for wear resistance and precision dimensioning. Analysis shows that the most suitable alloys for this purpose are the alloys V95, VAD23 and D16 provided that they are subjected to the following regimes of heat treatment to assure satisfactory dimensional stability and mechanical properties: (a) V95, quenching from 470 plus or minus 5 degrees centigrade, cooling in 80 degrees centigrade water, aging at 140 plus or minus 5 degrees centigrade for 16 hr; (b) D16, quenching from 500 plus or minus 5 degrees centigrade, cooling in 80 degrees centigrade water, aging at 190 plus or minus 5 degrees centigrade for 12 hr; (c) VAD23, quenching from 525 plus or minus 5 degrees centigrade, cooling in 20 degrees centigrade water, aging at 190 plus or minus 5 degrees centigrade for 12 hr. Accordingly, following this heat treatment, specimens of the above alloys were subjected to wear tests in Kh-2 and Amsler friction machines. These tests showed that the maximum wear resistance is displayed by the alloy V95 when hardened by means of heat treatment to a Brinell hardness of 150-180 kg/sq mm. (Author)

Descriptors :   (*ALUMINUM ALLOYS, WEAR RESISTANCE), (*HEAT TREATMENT, ALUMINUM ALLOYS), FRICTION, ANODIC COATINGS, USSR

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE