Accession Number : AD0624911

Title :   A STUDY OF ANTIFRICTION ALLOYS OF THE 'ALCUSIP' TYPE,

Corporate Author : FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Dumchus,M. V. ; Stroeva,K. M.

Report Date : 26 NOV 1965

Pagination or Media Count : 13

Abstract : Alcusip castings over 80 mm in diameter have intolerable liquation of the lead over their height. The microstructure of alcusip is characterized by considerable nonuniformity. The ground mass - the ferrous component AlxFeySiz with CuAl2 crystals - is comparatively hard, while the inclusions of lead and the solid solution of copper in aluminum are soft. As the lead content in the alcusip increases, the strength and hardness decline and the relative elongation increases. Alcusip alloys show wear resistance inferior to that of B-16 alloy. Among the alcusip alloys, AMSK-1 shows the best resistance to wear. Alcusip alloys might be used as a replacement for bronze in light-duty bearings, when the specific pressure is of the order of 20 kg/sq cm and the speed below 3 m/sec. The value of the bearing-materials characteristic Pv < 60 kg.m/sq cm.sec, for the alcusip alloys. (Author)

Descriptors :   (*ALUMINUM ALLOYS, ANTIFRICTION BEARINGS), (*ANTIFRICTION BEARINGS, ALUMINUM ALLOYS), USSR, COPPER ALLOYS, LEAD ALLOYS, SILICON ALLOYS, IRON ALLOYS, CASTINGS, MICROSTRUCTURE, WEAR RESISTANCE

Subject Categories : Properties of Metals and Alloys
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE