Structure and hardness of explosively consolidated molybdenum
- 1. Oregon Graduate Center, Beaverton (USA)
- 2. Climax Molybdenum Co. of Michigan, Ann Arbor (USA)
- 3. Northwest Technical Industries Inc., Sequim, WA (USA)
- 4. New Mexico Inst. of Mining and Technology, Socorro (USA)
Description
The structure of explosively consolidated molybdenum powder was observed to consist of inhomogeneous mixtures of both very fine grains and coarser grains, ranging from 1 to 25 μm in diameter. Both the fine and the coarse grains contain subgrain structures characterized by grain boundary misorientations averaging 60; the average subgrain size ranges from 0.1 to 1 μm. The hardness of the explosively consolidated molybdenum powder, about 380 HV10, is similar to that observed for shock-loaded molybdenum sheet, but the microstructures of the two materials differ. The hardness of the explosively consolidated powder and its change as a function of 1 h annealing temperature were observed to be considerably different from the hardness levels and changes in hardness observed for unsintered molybdenum extrusions and conventionally processed P/M molybdenum bars. (Auth.)
Additional details
Publishing Information
- Journal Title
- Mater. Sci. Eng.
- Journal Volume
- 57
- Journal Issue
- 1
- Series
- Mater. Sci. Eng.
- Journal Page Range
- 107-111
- ISSN
- 0025-5416
INIS
- Country of Publication
- Switzerland
- Country of Input or Organization
- Switzerland
- INIS RN
- 14754218
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNEALING; DISLOCATIONS; EXPERIMENTAL DATA; GRAIN SIZE; HARDNESS; MEDIUM TEMPERATURE; MOLYBDENUM; POWDERS; VERY HIGH TEMPERATURE
- Descriptors DEC
- CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; ELEMENTS; HEAT TREATMENTS; INFORMATION; LINE DEFECTS; MECHANICAL PROPERTIES; METALS; MICROSTRUCTURE; NUMERICAL DATA; SIZE; TRANSITION ELEMENTS