A TIAL BASE ALLOY INGOT HAVING DUCTILITY AT ROOM TEMPERATURE

摘要

A titanium-aluminum based alloy ingot having ductility at room temperature according to the present invention has a lamellar structure regularly arranged with α2 phases and γ phases in turn. The thickness ratio between an α2 phase and a γ phase, namely γ/α is supposed to be 2 or higher. The thickness of the γ phase is between 100 mm and 200 mm. The thickness of the α2 phase is 100 mm or less. [Reference numerals] (AA) Comparative example 2;(BB) Example 1