Microstructural response of rapidly solidified 304 stainless steel powder to three consolidation techniques
Some of the characteristics of rapidly solidified metals, such as reduced chemical segregation and extremely fine grain size, can result in improved material properties and performance. However, these same characteristics present a challenge to the metallographer examining the microstructures of these materials, and frequently more than one technique is required to characterize the features present. This paper describes the vastly different microstructure produced in centrifugally atomized 304 stainless steel powder after consolidation by three different processes: hot isostatic pressing, extrusion, and explosive consolidation. Characterization of microstructural features depended upon a combination of optical, scanning electron, and transmission electron techniques.
- Research Organization:
- EG and G Idaho, Inc., Idaho Falls (USA)
- DOE Contract Number:
- AC07-76ID01570
- OSTI ID:
- 7123388
- Report Number(s):
- EGG-M-18286; CONF-8608153-2; ON: DE87000439
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360102* -- Metals & Alloys-- Structure & Phase Studies
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
COMPACTING
CORROSION RESISTANT ALLOYS
CRYSTAL STRUCTURE
ELECTRON MICROSCOPY
EXPLOSIVE FORMING
EXTRUSION
FABRICATION
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HOT PRESSING
IRON ALLOYS
IRON BASE ALLOYS
MATERIALS
MATERIALS WORKING
MICROSCOPY
MICROSTRUCTURE
NICKEL ALLOYS
POWDERS
PRESSING
STAINLESS STEEL-304
STAINLESS STEELS
STEELS