Aluminum-lithium alloys

Details Aluminum-lithium alloys Aluminum-lithium alloys

1985-12-23

1989-05-23

Dean, R.

Alloys or metallic compositions

Aluminum base

420529, 420531, 420532, 420533, 420534, 420535, 420540, 420541, 420542, C22C 2100

Patent

active

048329100

ABSTRACT:
Disclosed is an aluminum-lithium alloy containing a predetermined amount of lanthanides which provides the alloy with an improved combination of strength and fracture toughness relative to a baseline alloy not containing lanthanides but otherwise having the alloy's composition.

REFERENCES:
patent: 3795505 (1974-03-01), Corradini
"Microstructure and Toughness of High-Strength Aluminum Alloys", J. T. Staley, Properties Related to Fracture Toughness, ASTM STP 605, American Society for Testing and Materials, 1976, pp. 71-103.
"Development of the Short Rod Method of Fracture Toughness Measurement", L. M. Barker, presented at the ASM Conference on Wear and Fracture Prevention, Peoria, Ill., May 21-22, 1980, pp. 1-30.
"Comparisons of Fracture Toughness Measurements by the Short Rod and ASTM Standard Method of Test for Plane-Strain Fracture Toughness of Metallic Materials (E 399-78)", L. M. Barker & F. I. Baratta, Journal of Testing and Evaluation, JTEVA, vol. 8, No. 3, May 1980, pp. 97-102.
"Oxidation of Aluminum-Lithium Alloys and Methods of Protection", L. V. Kuz'michev, L. Ya. Maizlin, A. Ya. Radin & B. D. Guryeyev, pp. 1-8.

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