摘要
Ⅰ. INTRODUCTION Alloy TiAl with LI_o structure has been of interest for its low density, high strength, corrosion and oxidation resistance, especially the anomalous yield strength dependent on temperature. However, its embrittlement at room temperature limits its application. Despite that manifold origins affect brittleness of some alloys, especially intermetallic compounds, it
基金
Project supported by the National Advanced Materials Committee
