Nanostructured Bearing Alloy Studies.
Abstract
Earlier results from this program have shown that the commercial practice that were developed to handle reactive powders such as titanium, is not adequate for nano powders. Using such practice, oxygen content up to 12% was observed in consolidated nano steel samples. A series of improvements has been made recently in powder handling and consolidation. A more inert atmosphere in the glove box is achieved by incorporation of a diffusion pump and an argon purifying line. The powder is heat treated in a 4% hydrogen-argon mixture in the vacuum press prior to compaction. These changes and resulting reduction in oxygen content in the powder compact were presented in the Second Quarterly Report (October 1994). An additional improvement was made during this reporting period which involved the construction and use of a hydrogen retort to further reduce the oxygen and carbon content in the nano powder prior to consolidation. Several consolidations were also made to evaluate the effectiveness of this improvement. jg p.2
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1995
- Accession Number
- ADA299199
Entities
People
- K. Gonsalves
Organizations
- University of Connecticut