Fracture toughness of TiAl-Cr-Nb-Mo alloys produced via centrifugal casting

Frattura ed Integrità Strutturale

D. Pilone¹  F. Felli¹  A. Brotzu² 

[1] ;Dipartimento ICMA, Sapienza Università di Roma, Via Eudossiana 18, 00184 Roma (Italy);

关键词: Titanium aluminides;   

DOI  :  10.3221/IGF-ESIS.22.03

来源: DOAJ

【 摘 要 】

Fracture toughness of a TiAl base intermetallic alloy has been investigated at room temperature. The Ti-48Al-2.5Cr-0.5Nb-2Mo (at. %) alloy produced via centrifugal casting exhibits fine nearly lamellar microstructures, consisting mainly of fine lamellar grains, together with a very small quantity of residual beta phases along lamellar colony boundaries. In order to determine the alloy fracture toughness compact tension specimens were tested and the results were compared with those available in literature.

【 授权许可】

Unknown