Accession Number : AD0475697

Title :   PREPARATION AND INVESTIGATION OF HIGH STRENGTH WIRES.

Descriptive Note : Summary technical rept. no. 1, 1 Jun 64-31 May 65,

Corporate Author : OHIO STATE UNIV RESEARCH FOUNDATION COLUMBUS

Personal Author(s) : Davis, J. A. ; Moazed, K. L.

Report Date : OCT 1965

Pagination or Media Count : 40

Abstract : An investigation was conducted to determine the effect of oxide coatings on the mechanical properties of iron wires. The most desirable oxide coatings were formed at 600 and 700 C for a controlled argon-hydrogen-water vapor atmospheres in which only wustite (FeO) was stable. During mechanical testing of oxidized wires, the following factors were found to increase the strength levels of the wires: (1) decreasing the annealing time prior to oxidation; (2) increasing the oxidizing time; (3) decreasing the oxidizing temperature; and (4) increasing the strain rate. Thirty to 40% of the strengthening of the oxidized wires was found to be a consequence of oxide-dislocation interactions and 60 to 70% was due to higher carbon, oxygen, nitrogen, and hydrogen contents in the oxidized specimens. (Author)

Descriptors :   (*WIRE, MECHANICAL PROPERTIES), (*COATINGS, WIRE), IRON, OXIDES, ENVIRONMENTAL TESTS, OXIDATION, ADHESION, TENSILE PROPERTIES, ANNEALING, CHEMICAL ANALYSIS, ELASTIC PROPERTIES, MAGNETITE, VAPORS, HYDROGEN, WATER VAPOR, ARGON, STABILITY.

Subject Categories : Fabrication Metallurgy
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE