Accession Number : AD0707083

Title :   THE EFFECT OF REVERTED AUSTENITE ON THE MECHANICAL PROPERTIES AND TOUGHNESS OF 12 Ni AND 18 Ni (200) MARAGING STEELS.

Descriptive Note : Technical rept.,

Corporate Author : CARNEGIE INST OF TECH PITTSBURGH PA METALS RESEARCH LAB

Personal Author(s) : Pampillo,Carlos A. ; Paxton,Harold W.

Report Date : 01 JUN 1970

Pagination or Media Count : 39

Abstract : The effect of reverted austenite, of inclusion density, and of overaging of hardening precipitates, separately and together, on the strength and toughness of some maraging steels was investigated. The presence of reverted austenite does not necessarily improve toughness, and can in fact contribute measurably to increased yield strengths. Some speculations are presented on the role of retained austenite in these steels, and on the influence of the dislocations produced during the original austenite-martensite transformation. (Author)

Descriptors :   (*MARAGING STEELS, MECHANICAL PROPERTIES), NICKEL ALLOYS, AUSTENITE, TOUGHNESS, IMPURITIES, TENSILE PROPERTIES, FRACTURE(MECHANICS)

Subject Categories : Metallurgy and Metallography
      Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE