Accession Number : AD0614277

Title :   HOMOGENIZATION OF HIGH-STRENGTH STEEL AT 2500 F,

Corporate Author : ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS

Personal Author(s) : Quigley,Francis C. ; Ahearn,Paul J.

Report Date : DEC 1964

Pagination or Media Count : 21

Abstract : Unidirectionally solidified high-strength steel was homogenized at 2500 F for extended periods of time. The mechanical properties resulting from such treatments were compared with the properties of the material heat treated in the standard way. The improved ductility associated with the 2500 F homogenization is attributed to a reduction in the extent of micro-segregation with increasing homogenization time. First principles were employed to show that the increase in ductility is a function of time of homogenization and diffusion coefficient of segregated alloying elements over the square of the distance from the surface of the casting to the test location. (Author)

Descriptors :   (*STEEL, HEAT TREATMENT), (*HEAT TREATMENT, STEEL), (*CASTINGS, HEAT TREATMENT), CASTINGS, DUCTILITY, TENSILE PROPERTIES, MECHANICAL PROPERTIES, PHASE STUDIES, DIFFUSION

Distribution Statement : APPROVED FOR PUBLIC RELEASE