الفهرس 
AcknowledgementOnly 14 pages are availabe for public view
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Abstract
Materials & methods: The specimens were equally divided into 2groups according to alloys ten specimens of miling
titanium alloy and ten specimens of casting Ni-Cr (25mm x3mm x 0.5 mm). The specimens in each group were further
divided into 2 subgroups according to the rate of cooling Rapid: lowering the plat form to most inferior position
and removing spacemen from furnace and allowing to cool to room temperature.