directionally solidified


Also found in: Acronyms.

directionally solidified

A method of manufacturing the turbine blades of gas turbine engines. The blades are cast and removed from the casting furnace in such a way that all the crystals in the metal form columnar grains, extending along the entire length of the blade.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
Effects of composition and growth rate on the microstructure transformation of [beta]-rods/lamellae/a -rods in directionally solidified Mg-Li alloy, Materials & Design, 119:199-207.
Zhang et al., "Effect of currents on the microstructure of directionally solidified Al4.5 wt% Cu alloy," Journal of Crystal Growth, vol.
Lin, "Microstructure and microsegregation of directionally solidified Ti-45Al-8Nb alloy with different solidification rates," Rare Metals, vol.
It is the first furnace able to produce either equiax or directionally solidified crystals, Boutot said.
A GE team conducted creep feed grinding tests on three different nickel-base superalloys: conventionally cast IN-718, single-crystal Rene alloy, and directionally solidified Rene.
Selected longitudinal (parallel to the horizontal growth direction) sections of the directionally solidified specimens at 5, 10, 15, 20, 30, 40, 50, and 60 mm from the metal/mold interface were polished and etched with a solution of 0.5% HF in water for micrograph examination.
In metalcasting, three different grain structures can be achieved: equiax, directionally solidified poly-grain and the single crystal.
A356 with and without strontium modification also was directionally solidified. Other findings from the study include:
A directionally solidified sample (to control shrinkage) is obtained from the melt and machined into a small cylinder.
Fine grain superalloy castings, composite materials and directionally solidified castings required to meet increased operational conditions will be "HIPed" more often.
VI melters are used in both primary and secondary refining to produce powdered metal, Directionally Solidified (DS), equiaxed and Single Crystal (SC) cast parts or wrought products.
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