Mechanical properties of electron-beam-melted molybdenum and dilute molybdenum-rhenium alloys. [Less than 10 at. % Re]

Technical Report · Thu Jun 01 04:00:00 EDT 1972

OSTI ID:5563845

Klopp, W D; Witzke, W R

A study of molybdenum and three dilute molybdenum-rhenium alloys was undertaken to determine the effects of rhenium on the low-temperature ductility and other mechanical properties of molybdenum. Alloys containing 3.9, 5.9, and 7.7 atomic percent rhenium all exhibited lower ductile-brittle transition temperatures than did the unalloyed molybdenum. The maximum improvement in the annealed condition was observed for molybdenum - 7.7 rhenium, which had a ductile-brittle transition temperature approximately 200/sup 0/C (360/sup 0/F) lower than that for unalloyed molybdenum. Rhenium additions also increased the low- and high-temperature tensile strengths and the high-temperature creep strength of molybdenum. The mechanical behavior of dilute molybdenum-rhenium alloys is similar to that observed previously for dilute tungsten-rhenium alloys.

• Research Organization: National Aeronautics and Space Administration, Cleveland, OH (USA). Lewis Research Center
• OSTI ID: 5563845
• Report Number(s): NASA-TM-X-2576; ON: DE83903092
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360103* -- Metals & Alloys-- Mechanical Properties
ALLOYS
BENDING
CREEP
CRYSTAL STRUCTURE
DATA
DUCTILE-BRITTLE TRANSITIONS
DUCTILITY
ELEMENTS
EXPERIMENTAL DATA
GRAIN SIZE
INFORMATION
MECHANICAL PROPERTIES
METALS
MICROSTRUCTURE
MOLYBDENUM
MOLYBDENUM ALLOYS
MOLYBDENUM BASE ALLOYS
NUMERICAL DATA
RECRYSTALLIZATION
RHENIUM ALLOYS
SIZE
TEMPERATURE DEPENDENCE
TENSILE PROPERTIES
TRANSITION ELEMENTS