Accession Number : AD0428861


Title :   DEFORMATION PROCESSING OF ANISOTROPIC METALS.


Descriptive Note : Progress rept. no. 2, 1 Sep-31 Oct 63,


Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE METALS PROCESSING LAB


Personal Author(s) : Avery,D H ; Backofen,W A


Report Date : Dec 1963


Pagination or Media Count : 3


Abstract : Work was carried out primarily in two related areas: (1) further exploration of the planestrain deformation of the alpha (2.5 Sn - 5 Al) titanium alloy; (2) and the variation of plastic anisotropy with temperature and strain. One of the problems in an evaluation of plane-strain compression data is determining the friction-hill contribution to the measured load. Currently, plane-strain indentations are being made with a series of indentors of increasing width, Mos2 and 2-mil Teflon film are the lubricants. Other experiments have been based on plane-strain tension tests to avoid frictional complications. In this case plane-strain is enforced by milling a groove, across both faces of a strip specimen, at right angles to the loading axis; and producing a reduced section with a thickness of only 15% of that of the sheet, a length 4 times the thickness, and a width 40 times the thickness. Stress-strain curves from these samples are parallel to the compression curves and approximately 10% lower. (Author)


Descriptors :   *METALS , *TITANIUM ALLOYS , DEFORMATION , ANISOTROPY , STRAIN(MECHANICS) , TEMPERATURE , TEST METHODS , STRESSES , PLASTIC PROPERTIES , ROLLING(METALLURGY) , HIGH TEMPERATURE , TIN ALLOYS , ALUMINUM ALLOYS


Distribution Statement : APPROVED FOR PUBLIC RELEASE