Accession Number : AD0782247

Title :   Machine Casting of Ferrous Alloys.

Descriptive Note : Interim rept. 1 Jan-30 Dec 73,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METALLURGY AND MATERIALS SCIENCE

Personal Author(s) : Flemings,Merton C.

Report Date : APR 1974

Pagination or Media Count : 149

Abstract : Much of the work during this first year has been conducted on low temperature alloys as model systems for ferrous alloys. Emphasis of the work has been on development and testing of innovative concepts that might lead to machine cast ferrous alloys of high quality and at lower costs than is possible today. Extensive work was conducted on casting of semi-solid alloys when highly fluid ('Rheocasting') and when thixotropically gelled (Thixocasting'). In initial phases of the program, copper base alloys and cast iron alloys were prepared with special non-dendritic Rheocast structure by batch processing. Compatibility studies were carried out to select materials suitable for preparing cast iron with the Rheocast structure. Design principles were tested in a low temperature unit, used for casting Sn-15%Pb alloy. Two different types of casting machines were developed and successfully tested in combination with this continuous slurry producer. (Modified author abstract)

Descriptors :   *Casting, *Iron alloys, Solidification, Machines, Costs, Copper alloys, Compatibility, Tin alloys, Lead alloys

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE