Research on chromium-base alloys exhibiting high-temperature strength, low-temperature ductility, and oxidation resistance /
Carl S. Wukusick.

Description

Main Author

Wukusick, Carl S.

Related Names

United States. Air Force.
General Electric Company. Nuclear Materials and Propulsion Operation

Language(s)

English

Published

Wright-Patterson Air Force Base, Ohio : Directorate of Materials and Processes, Aeronautical Systems Division, Air Force Systems Command, United States Air Force, 1963.

Subjects

Oxidation.
Chromium alloys.
Brittleness.
Alloys > Alloys / Mechanical properties.
Oxidation.
Alloys > Alloys / Ductility.
Brittleness.
Alloys > Alloys / Mechanical properties.
Chromium alloys.

Summary

Improvements in ductility, strength, and oxida tion resistance of chromium were obtained by combinations of small amounts of rhenium and reactial additions (yttrium, thorium, and hafnium). Dispersions, formed by reactions be tween impurities and reactive metal additions or by the addition of dispersoid-forming elements, resulted in increased ductility and strength. Combinations of reactive metal additions were more effective in improving ductility and oxida tion resistance than single additions. Possible mechanisms are outlined. Two alloys exhibited resistance to nitrification for 100 hours at 2500 F in thick sections. These were a Cr - 10 wt-% Re Y, Th, and Hf alloy and a Cr - 15 volume percent Y2O3 - 1 wt-% Y cermet. Thin sections exhibited less resistance to nitrification.

Note

AD0411116 (From http://www.dtic.mil).
"June 1963."

Physical Description

vi, 73 pages : illustrations, tables ; 28 cm.

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