Formation of diamond-cubic eta phase in Type 316 stainless steel exposed to thermal aging or irradiation environments

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Scr. Metall.; (United States)

DOI:https://doi.org/10.1016/0036-9748(79)90121-2· OSTI ID:5941149

Maziasz, P J

Precipitation in Type 316 stainless steel in thermal aging, fast reactor or mixed spectrum reactor environments was examined by many workers. Many properties such as strength, corrosion resistance or swelling resistance can be sensitive either to precipitation directly or to changes in the composition of the matrix induced by the precipitation. After irradiation in the Experimental Breeder reactor II (EBR-II) or High Flux Isotope Reactor (HFIR) or after thermal aging, eta phase is found in solution-annealed 316 (1 h at 1050/sup 0/C) and 20% cold-worked 316. Based upon data reported in the literature, the widespread appearance and dominance of the diamond-cubic eta phase in Type 316 already investigated, whether thermally aged or irradiated, should at least be considered a distinct possibility because the phase has been found in this heat of Type 316 and because it can be difficult to detect. The direct relation between alloy composition, microstructure and properties means that it is important that precipitation behavior be characterized and understood in order to improve elevated-temperature performance and to support predictions of properties.

• Research Organization: Oak Ridge National Lab., TN
• DOE Contract Number: W-7405-ENG-26
• OSTI ID: 5941149
• Journal Information: Scr. Metall.; (United States), Journal Name: Scr. Metall.; (United States) Vol. 13:7; ISSN SCRMB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
360102* -- Metals & Alloys-- Structure & Phase Studies
360103 -- Metals & Alloys-- Mechanical Properties
AGING
ALLOYS
ANNEALING
CHEMICAL COMPOSITION
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COLD WORKING
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS WORKING
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
PHASE STUDIES
PHYSICAL RADIATION EFFECTS
PRECIPITATION
RADIATION EFFECTS
SEPARATION PROCESSES
STAINLESS STEEL-316
STAINLESS STEELS
STEELS
YIELD STRENGTH