Effect of TiB^sub 2^ and ZrB^sub 2^ additions on structure and properties of Fe-7Al based light weight steel

Microstructural modifications and their effect on tensile properties in an Fe-7 wt.% Al alloy by additions of 0.5% TiB2, 0.5% ZrB2 or both has been studied. Alloys are examined in the as-cast as well as in the hot-rolled and annealed conditions. Solidification structure of the Vacuum Arc Remelted pa...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2017-06, Vol.697, p.167
Main Authors: Khaple, Shivkumar, Prasad, VV Satya, Golla, Brahma Raju, Baligidad, RG, Gokhale, AA
Format: Article
Language:English
Subjects:
Alloys
Aluminum base alloys
Annealing
Columnar structure
Dendritic structure
Ductility
Ferrous alloys
Grain refinement
Hot rolling
Ingot casting
Mechanical properties
Solidification
Steel
Strain hardening
Tensile properties
Thermomechanical treatment
Titanium diboride
Weight reduction
Yield strength
Yield stress
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Summary:Microstructural modifications and their effect on tensile properties in an Fe-7 wt.% Al alloy by additions of 0.5% TiB2, 0.5% ZrB2 or both has been studied. Alloys are examined in the as-cast as well as in the hot-rolled and annealed conditions. Solidification structure of the Vacuum Arc Remelted pancake ingots was columnar dendritic. Further, boride modified alloys are found to have finer grains in as-cast as well as in hot-rolled and annealed conditions. In the annealed condition, boride containing alloys were found to have superior tensile yield strength, ductility and strain hardening behaviour. These property improvements are attributed to boride aided grain refinement during casting as well as during thermo-mechanical processing of the steels.
ISSN:0921-5093
1873-4936