Accession Number : AD0430978


Title :   STRESS-AGING: A NEW TREATMENT FOR ALLOYS PART ONE: EFFECT ON STANDARD TENSILE PROPERTIES OF STAINLESS STEELS,


Corporate Author : WATERVLIET ARSENAL N Y


Personal Author(s) : Harrington,R H


Report Date : Nov 1963


Pagination or Media Count : 56


Abstract : Stress-Aging is a new treatment for alloys that results in concurrent increases of proportional limit, 0.1% offset yield strength, percent elongation and percent reduction of area. In general, for the three stainless steels (177PH, 17-4PH and AM355), the proportional limit (conservative measure of practical elasticity) may be increased by 100%, the 0.1% offset yield strength (a design factor) may be increased by 50,000 psi, with concurrent increases of 25-40% in percent elongation and 50% in percent reduction of area. Possible stress-aging reactions are discussed relative to the measured changes in properties that have been observed. Similar effects have been observed in other iron-base alloys and in copper-base and aluminum-base alloys. Ensuing reports will describe similar improvements currently being found in a typical gun steel and in four low-alloy ultra-high strength steels. (Author)


Descriptors :   *ALLOYS , *STAINLESS STEEL , *STRESSES , HARDENING , HARDENING , AGING(MATERIALS) , TENSILE PROPERTIES , DUCTILITY , ELASTIC PROPERTIES , TEMPERATURE , TIME , SOLID SOLUTIONS , ELECTRICAL CONDUCTIVITY , COPPER ALLOYS , TIN ALLOYS , HEAT TREATMENT , STRAIN(MECHANICS)


Distribution Statement : APPROVED FOR PUBLIC RELEASE