Effects of thermal annealing on the chemical and physical properties of shear bands. [Metglas 2826]
- Univ. of Rochester, NY (USA)
Inhomogeneous flow in metallic glasses is revealed in the form of shear bands. A study of the effect of annealing on the chemical etchability of shear bands in Metglas 2826 (Fe{sub 40}Ni{sub 40}P{sub 14}B{sub 6}) and BNi{sub 2}(Ni{sub 69.2}B{sub 13.7}Si{sub 7.9}Cr{sub 6.6}Fe{sub 2.6}) brazing alloy was performed. It is found that the etchability of shear bands could be eliminated after a certain time period characteristic of the isothermal annealing temperature. This property was used to determine the apparent activation energy of the loss of chemical etchability of the bands. In the BNi{sub 2} alloy, the etching properties following annealing are compared to the effect of annealing on the reverse shear behavior of the shear bands.
- OSTI ID:
- 5363370
- Report Number(s):
- CONF-840909--
- Journal Information:
- TMS (The Metallurgical Society) Paper Selection; (USA), Journal Name: TMS (The Metallurgical Society) Paper Selection; (USA) Vol. 56; ISSN TMPSA; ISSN 0197-1689
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ACTIVATION ENERGY
ALLOYS
ANNEALING
BORIDES
BORON COMPOUNDS
CHROMIUM COMPOUNDS
CORRELATIONS
ENERGY
ETCHING
FLUID FLOW
HEAT TREATMENTS
IRON BORIDES
IRON COMPOUNDS
MECHANICAL PROPERTIES
METALLIC GLASSES
NICKEL BORIDES
NICKEL COMPOUNDS
PHOSPHORUS COMPOUNDS
PHYSICAL PROPERTIES
SHEAR PROPERTIES
SILICON COMPOUNDS
SURFACE FINISHING
TRANSITION ELEMENT COMPOUNDS
UNSTEADY FLOW