Amorphous Glassy Metal and Microcrystalline Alloys for Aerospace Applications.
Abstract
This report discusses the results of a program, initiated in January, 1975, for the preparation and examination of the mechanical characteristics of amorphous and rapidly-quenched polycrystalline alloys with properties relevant to aerospace applications. In it are described (a) the preparation and properties of a rapidly quenched Ti-6Al-4V alloy powder substitute, and its successful consolidation by vacuum-hot-pressing and hot-isostatic-pressing into test shapes from which were machined tensile bars and compression-test specimens. Composition was found to be retained, and the properties of the wrought starting material were essentially recovered; (b) the preparation by sputtering, splat quenching, melt spinning and melt extraction of 30 metallic glass candidate alloys, and the measurement of several of their properties. The performance of 'solution strengthening' studies on a well-categorized metallic glass basic alloy, FE80P13C7, and the preparation and examination of the properties of an advanced high-specific-strength Ti-base Be-free metallic-glass alloy; (c) the examination of melt-extracted rapidly-quenched-polycrystalline solution- and precipitate-strengthened Ti-base fibers, and the preparation and properties of a ductile polycrystalline Ti-base fiber with specific strength comparable to that of the best metallic glass ribbon fiber presently available. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1978
- Accession Number
- ADA060353
Entities
People
- C. E. Mobley
- E. W. Collings
- R. E. Maringer
Organizations
- Battelle Memorial Institute