SOME EFFECTS OF VARIATION OF HOT-PRESSING TEMPERATURE UPON THE AGGLOMERATION OF MGO IN A DISPERSION STRENGTHENED NICKEL-MGO ALLOY
Abstract
Agglomeration of oxides in a Ni-MgO composite increased with hot-pressing temperatures ranging from 1800 to 2400 F and was influenced by the presence of impurity oxides. The most encouraging result of the investigation was that the hot-pressing method seemed adaptable to producing a dispersoid in a metal matrix approaching dimensions in those of Al - Al2O3 SAP-type alloys. The finest dispersions were obtained in extruded products by using the lowest hot-pressing temperature prior to extrusion and the finest metallic powders. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1962
- Accession Number
- AD0273314
Entities
People
- John W. Weeton
- Max Quatinetz
- Robert J. Schafer
Organizations
- National Aeronautics and Space Administration