Review of Recent Developments in the Technology of Tungsten


Book Description

This memorandum briefly reviews a number of current developments of general interest in the technology of tungsten. Most of this information was received during the period Aug through Oct 1961. Included in the discussion are: procedures for making W sheet; extrusion; annealing of W foils; fiber metallurgy; fabrication of W and W alloy single crystals; W alloys; and oxidation of W.



















Review of Recent Developments in the Evaluation of Special Metal Properties


Book Description

A brief review is presented of techniques for special testing of materials, test results and sources of information on special testing procedures. Test data on tensile properties are presented for sheet Al and Ti alloys and for AISI 31O stainless steel to -423F. A paper on the compression testing of sheet at elevated temperatures with compression testing jigs and associated techniques is discussed briefly as well as a report on burst tests on deep-drawn pressure vessels.




The Use of Nickel-base Alloys in the Rotating Parts of Gas Turbines for Aerospace Applications


Book Description

Unclassified information is presented on the use of nickel-base alloys in rotating machinery for aircraft, missiles, and related ground-support equipment. Less emphasis is placed on aircraft propulsion units, because a large bibliography already exists for these applications; only recent developments are included here. Rather, primary attention is placed on auxiliary power units and starters for aircraft, ground-support equipment, and turbopump units for missiles. This memorandum is concerned primarily with materials. Because the operational parameters are vastly different for the various turbines, the choice of alloy for a given application depends upon the wide variety of mechanical and physical requirements demanded by the service conditions. In addition, a summary of present and proposed manufacturing and fabrication methods is included. (Author).