Accession Number:

AD0810880

Title:

ARC MELTING SUPERALLOYS FOR EXTRUSION STUDIES.

Descriptive Note:

Summary rept. Apr 65-Jun 66,

Corporate Author:

AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH

Personal Author(s):

• Inouye, Shingo
• Saul, George

Report Date:

1966-11-01

Pagination or Media Count:

24.0

Abstract:

A comparative study was made of two consumable arc melting techniques for the production of super alloy ingots. One technique utilized a vacuum atmosphere and the other a partial pressure of argon. The argon atmosphere allowed a low arc current to be maintained for hot topping while the vacuum atmosphere would not support a stable low current arc. Greater ingot yields were therefore recovered with the argon technique because a smaller shrinkage cavity was produced. Chemical analyses and tensile data of the two techniques were similar. Both ingot types showed good extrudability. Author

Descriptors:

• *NICKEL ALLOYS)
• (*CONSUMABLE ELECTRODE PROCESS
• (*COBALT ALLOYS
• CONSUMABLE ELECTRODE PROCESS)
• CASTINGS
• VACUUM
• ARGON
• EXTRUSION
• MICROSTRUCTURE
• TENSILE PROPERTIES
• IMPACT TESTS

Subject Categories:

• Properties of Metals and Alloys
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE