Al-Li alloys with low density and high fracture toughness.

摘要

Based alloy UTIL ALUMINUM IN STRUCTURES OF AIRCRAFT AND AEROSPACE HAVING A LOW density, high strength and high fracture resistance consists essentially of the following formula: CUALIBMGCAZREALBAL WHERE A, B, C, D, EY BAL INDICATE QUANTITY IN PERCENTAGE OF WEIGHT aLLOY COMPONENTS AND WHERE LESS THAN LESS THAN 2.4 3.5, 1.35 BOTTOM BOTTOM AB 1.8, O.25 LOWER AC LESS THAN 0.65, AD 0.25 BOTTOM BOTTOM BOTTOM AE 0.65 and 0.08 LESS THAN 0.25, AND alloy has a density of 0.0945 to 0.0960 lbs / IN3.PREFERENTEMENTE, THE RELATIONSHIP BETWEEN THE COMPONENTS OF COPPER AND LITHIUM also contains the following tests: 6.5 BOTTOM BOTTOM AA + 2.5B 7.5, 2B-0.8 BELOW LOWER AA 3.75B-1.9 .