Toughness anisotropy and the ductile brittle transition of warm-rolled, hot-rolled, and beta-treated uranium plate

Technical Report · Fri Apr 24 04:00:00 EDT 1987

OSTI ID:6481908

Wood, D H; Jackson, R J; Thomas, R L ^[1]

---

1. ed.

Three different plate fabrication processes were used to produce unalloyed uranium plates having three different microstructures. Each plate type had distinctively different crystallographic textures and each had different levels of strain hardening. Standard Charpy V-notch bars were machined from the plates at five different orientations with respect to the rolling direction. These bars were tested at temperatures from -60 to +200/sup 0/C at 20/sup 0/ intervals, and ductile-brittle transition temperature (DBTT) curves were constructed. A strong directional effect of the DBTT was observed and explained in terms of crystallographic texture anisotropy. Similarly, a strong, non-directional effect on the DBTT was observed and explained in terms of hydrogen content and the level of strain hardening.

• Research Organization: Rockwell International Corp., Golden, CO (USA). Rocky Flats Plant
• DOE Contract Number: AC04-76DP03533
• OSTI ID: 6481908
• Report Number(s): RFP-3987; ON: DE87012303
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ACTINIDES
ANISOTROPY
CHARPY TEST
CRYSTAL STRUCTURE
DESTRUCTIVE TESTING
DUCTILE-BRITTLE TRANSITIONS
ELEMENTS
FABRICATION
HARDENING
HOT WORKING
IMPACT TESTS
MATERIALS TESTING
MATERIALS WORKING
MECHANICAL TESTS
METALS
MICROSTRUCTURE
PHYSICAL PROPERTIES
PLATES
QUENCHING
ROLLING
STRAIN HARDENING
TESTING
TEXTURE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
URANIUM