Accession Number : AD0258858

Title :   AN INVESTIGATION OF THE MECHANICAL PROPERTIES ON THE METHOD OF ADDITION OF IRON TO ELECTROLYTICALLY PRODUCED TITANIUM

Corporate Author : CHICAGO DEVELOPMENT CORP RIVERDALE MD

Personal Author(s) : DEAN,R.S. ; GULLETT,W.W.

Report Date : 30 APR 1961

Pagination or Media Count : 14

Abstract : IRON INTRODUCED INTO ELECTROLYTIC Ti crystals during electrolysis did not increase the hardness of the crystals but had a large effect on button hardness. A combination of Fe and O introduced by melting showed only a slight variation in hardness from an additive relationship, Fe lowered the hardening effect of O in the range of 0.3 to 0.4% Fe. The amount of intrinsic Fe present was reflected most accurately in the remanent magnetism of the alloys at high fields. The results indicate that the remanent magnetism of button samples is affected by O added on melting in the same way as hardness. Metallographic examination of samples with high remanent magnetism showed a typical basket weave structure indicating a precipitation on preferred lattice planes. The unusual structure and properties of the cast samples with high intrinsic Fe were obliterated by hot work. The cold worked samples showed a load-elongation curve indicating an increased apparent modulus within the elastic range. (Author)

Descriptors :   *FERROMAGNETIC MATERIALS, *PROCESSING, *TITANIUM, *TITANIUM ALLOYS, ADDITIVES, CRYSTAL STRUCTURE, ELECTROLYSIS, ELECTROLYTIC CELLS, HARDNESS, IRON, IRON ALLOYS, MAGNETIC PROPERTIES, MECHANICAL PROPERTIES, MELTING, MICROSTRUCTURE, OXYGEN

Distribution Statement : APPROVED FOR PUBLIC RELEASE