A Review Of Some Electron Microscopic Fractographic Studies Of Aluminum Alloys
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Stress-corrosion Cracking of Aluminum Alloys
Author | : J. D. Jackson |
Publisher | : |
Total Pages | : 22 |
Release | : 1965 |
Genre | : Aluminum alloys |
ISBN | : |
Report on the Fourth Maraging-steel Project Review
Author | : Albert M. Hall |
Publisher | : |
Total Pages | : 26 |
Release | : 1964 |
Genre | : Maraging steel |
ISBN | : |
Summary of the Ninth Meeting of the Refractory Composites Working Group
Author | : E. S. Bartlett |
Publisher | : |
Total Pages | : 26 |
Release | : 1965 |
Genre | : Heat resistant materials |
ISBN | : |
Summary of the Eighth Meeting of the Refractory Composites Working Group
Author | : E. S. Bartlett |
Publisher | : |
Total Pages | : 26 |
Release | : 1964 |
Genre | : Refractory materials |
ISBN | : |
This memorandum summarizes information on refractory materials and composites as presented at the Eighth Meeting of the Refractory Composites Working Group in Fort Worth, Texas, January 14-16, 1964. This memorandum is based on 45 papers covering a wide variety of subjects ranging from basic studies on oxidation mechanisms to the development of specific pieces of hardware. The papers are reviewed and discussed briefly within the framework of the following four broad areas: materials technology, process technology, specific hardware applications, and evaluation techniques. Included in the section on materials technology are discussions dealing with bulk refractory materials and coatedmetal systems. Hot spraying, chemical vapor deposition, powder processes, joining, and extrusion are discussed in the section on process technology. The specific hardware applications cover rocket-motor components, nose caps, leading edges, hot skins, and fasteners. (Author).
Index to DMIC Reports and Memoranda
Author | : Battelle Memorial Institute. Defense Metals Information Center |
Publisher | : |
Total Pages | : 38 |
Release | : 1968 |
Genre | : Alloys |
ISBN | : |
Surface Damage in Machined Beryllium
Author | : Stanley W. Porembka |
Publisher | : |
Total Pages | : 18 |
Release | : 1965 |
Genre | : Beryllium |
ISBN | : |
A review of machining damage effects in beryllium was made. Surface damage is caused by twinning and microcracking as a result of various machining operations. Twinning is a result of surface working while microcracks initiate at intersections of twins and grain boundaries, at twin-matrix interfaces, at impurity particles, and in heavily twinned regions. These phenomena may be due to residual stresses in wrought products as well as machining parameters such as tool type, feed, and speed and depth of cut. The loss of mechanical properties due to machining damage is reviewed. Also presented is a study of surface damage actually encountered with machining of the shingles for the Gemini spacecraft.