2013 年 54 巻 625 号 p. 181-185
A material with comparable tensile properties to conventional TiAl intermetallic compounds was fabricated by compression shearing at room temperature. Pure Ti and pure Al powders were mixed by ball milling. Mixing time was varied between 10 and 540 min. The tensile properties of the formed samples were measured. The results reveal that the Ti/Al thin plates were not mechanically alloyed. Rather, they consisted of separate Ti and Al phases. Tensile strength increased from 100 to 500 MPa when the milling time was increased from 10 to 540 min. Thin Ti/Al plates that were milled for 360 and 540 min were found to have similar tensile strength to conventional TiAl intermetallic compounds.