Research and Development for Improved Toughness Aluminides
Abstract
The objective of this program was to study and identify the basic mechanisms which can improve the toughness of alloys based on the intermetallic compound Ti3A1. The improved properties offered by these alloys will increase their potential for application in rotating components and critical static parts in advanced aircraft engines. The program was conducted in two separate phases which addressed iterative alloy/processing studies as well as alloy scale up concerns. In the first phase of the program, the effects of solid solution alloying, tough second phase, and dispersoid additions were evaluated in parallel tasks. Subsequently, alloys were designed to make use of additive and/ or synergistic effects by combining the various alloying and processing concepts. In the second phase of the program, three of the more promising compositions were selected for scale up and further microstructural and property evaluations. Keywords: Titanium alloys, Alpha-2, Fracture toughness, Microstructure, processing properties.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 11, 1990
- Accession Number
- ADA226627
Entities
People
- B. J. Marquardt
- C. G. Rhodes
- G. K. Scarr
- H.L. Fraser
- J. C. Chesnutt
Organizations
- GE Aerospace