High strength and high ductility tial-based intermetallic compou

Details High strength and high ductility tial-based intermetallic compou High strength and high ductility tial-based intermetallic compou

1994-07-11

1996-05-07

Kastler, Scott

Alloys or metallic compositions

Titanium base

Aluminum containing

420418, C22C 1400

Patent

active

055143334

ABSTRACT:
A high strength and high ductility TiAl-based intermetallic compound includes a content of aluminum in a range represented by 42.0 atom %.ltoreq.Al.ltoreq.50.0 atom %, a content of vanadium in a range represented by 1.0 atom %.ltoreq.V.ltoreq.3.0 atom %, a content of niobium in a range represented by 1.0 atom %.ltoreq.Nb.ltoreq.10.0 atom %, a content of boron in a range represented by 0.03 atom %.ltoreq.B.ltoreq.2.2 atom %, and the balance of titanium and unavoidable impurities. A product of the TiAl-based intermetallic compound is formed by only casting or casting followed by a homogenizing thermal treatment.

REFERENCES:
patent: H887 (1991-02-01), Venkataraman et al.
patent: 4842820 (1992-05-01), Huang
patent: 4857268 (1989-08-01), Huang
patent: 4897127 (1990-01-01), Huang
patent: 5205984 (1993-04-01), Rowe
English language Abstract of JP 1-298127 Dec. 1989.
"Micromechanics of Shear Ligament Toughening", K. Chan, Sep. 1991-Metallurgical Transactions.

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