Pressurized Crystallization of Aluminum Alloy AA 5086.
Abstract
The effects of applying pressure to a solidifying aluminum alloy were studied using a factorial experimental design with independent variables of (1) mold temperature, (2) melt temperature, (3) pressure, and (4) extent of rolling. The tensile yield stress, ultimate tensile strength, percent elongation, and the ratio NTS/YS (notched tensile strength/yield strength) were measured. The properties of the pressurized ingots were generally superior to those of the unpressurized ingots. Yield stress was but slightly affected by pressure application. Ultimate tensile strength was occasionally increased by pressure application. Ductility was almost always increased by pressurization. The toughness, as measured by the NTS/YS ratio, showed no dependence on the elongation to failure. Originator-supplied keywords included: Casting, Squeeze Casting, Pressurized Crystallization, Aluminum Alloys, Liquid Metal Forging.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 04, 1984
- Accession Number
- ADA152662
Entities
People
- A. Divecha
- H. Dejarnette
- S. Karmarkar
- W. Willard
Organizations
- Naval Ordnance Laboratory