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Effect of Thermo-Mechanical Processing on the Mechanical Properties of Molybdenum - 2 Volume % Lanthana.

DE2005835081

Publication Date	2005
Personal Author	Mueller, A. J.; Shields, J. A.; Buckman, R. W.
Page Count	16
Abstract	Variations in oxide species and consolidation method have been shown to have a significant effect on the mechanical properties of oxide dispersion strengthened (ODS) molybdenum material. The mechanical behavior of molybdenum - 2 Volume % La(sub)2O(sub)3 mill product forms, produced by a wet doping process, were characterized over the temperature range of -150 degrees C to 1800 degrees C. The various mill product forms evaluated ranged from thin sheet stock to bar stock. Tensile properties of the material in the various product forms were not significantly affected by the vast difference in total cold work. Creep properties, however, were sensitive to the total amount of cold work as well as the starting microstructure. Stress-relieved material had superior creep rupture properties to recrystallized material at 1200 degrees C, while at 1500 degrees C and above the opposite was observed. Thus it is necessary to match the appropriate thermo-mechanical processing and microstructure of molybdenum - 2 volume % LA(sub)2O(sub)3 to the demands of the application being considered.
Keywords	Mechanical properties Molybdenum Lanthanum oxides Theromechanical treatments Tensile properties Creep
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Bettis Atomic Power Lab., West Mifflin, PA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200521

Effect of Thermo-Mechanical Processing on the Mechanical Properties of Molybdenum - 2 Volume % Lanthana.

Effect of Thermo-Mechanical Processing on the Mechanical Properties of Molybdenum - 2 Volume % Lanthana.
DE2005835081

Publication Date	2005
Personal Author	Mueller, A. J.; Shields, J. A.; Buckman, R. W.
Page Count	16
Abstract	Variations in oxide species and consolidation method have been shown to have a significant effect on the mechanical properties of oxide dispersion strengthened (ODS) molybdenum material. The mechanical behavior of molybdenum - 2 Volume % La(sub)2O(sub)3 mill product forms, produced by a wet doping process, were characterized over the temperature range of -150 degrees C to 1800 degrees C. The various mill product forms evaluated ranged from thin sheet stock to bar stock. Tensile properties of the material in the various product forms were not significantly affected by the vast difference in total cold work. Creep properties, however, were sensitive to the total amount of cold work as well as the starting microstructure. Stress-relieved material had superior creep rupture properties to recrystallized material at 1200 degrees C, while at 1500 degrees C and above the opposite was observed. Thus it is necessary to match the appropriate thermo-mechanical processing and microstructure of molybdenum - 2 volume % LA(sub)2O(sub)3 to the demands of the application being considered.
Keywords	Mechanical properties Molybdenum Lanthanum oxides Theromechanical treatments Tensile properties Creep
Source Agency	Technical Information Center Oak Ridge Tennessee
Corporate Authors	Bettis Atomic Power Lab., West Mifflin, PA.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	200521