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Your search keyword '"Das, J"' showing total 16 results
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16 results on '"Das, J"'

15. Influence of annealing on the microstructure and hardness of Ti67.79Fe28.36Sn3.85 nanocomposite rods

Author

Van Steenberge, N., Das, J., Concustell, A., Sort, J., Suriñach, S., Eckert, J., and Baró, M.D.

Subjects
*METAL quenching, *COOLING, *HEAT treatment of metals, *COMPOSITE materials
Abstract

The microstructure of a rod with composition Ti67.79Fe28.36Sn3.85 prepared by suction casting consists of nanometer-sized eutectic lamellae of FeTi and β-Ti and a few β-Ti dendrites. A coarsening of the microstructure is observed from the edge towards the center of the rod. The hardness along the rod radius was evaluated by nanoindentation. The annealing effects on the microstructure of the alloy were investigated. Large hardness values are preserved even after annealing to 650°C for several hours. [Copyright &y& Elsevier]

Published
2006
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16. Effect of casting conditions on microstructure and mechanical properties of high-strength Zr73.5Nb9Cu7Ni1Al9.5 in situ composites

Author

Das, J., Güth, A., Klauß, H.-J., Mickel, C., Löser, W., Eckert, J., Roy, S.K., and Schultz, L.

Subjects
*ZIRCONIUM, *MECHANICAL properties of metals, *COPPER, *AMORPHOUS substances
Abstract

A novel Zr73.5Nb9Cu7Ni1Al9.5 composite consisting of dendrites in a nanocrystalline/amorphous matrix was developed. Room temperature compression tests reveal an unusual combination of high strength (1740 MPa) and ductility (4.0–17.5% strain to failure), which sensitively depends on bimodal size distribution of the phases and the casting technique employed. [Copyright &y& Elsevier]

Published
2003
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