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 : NOV 1966
Pagination or Media Count : 24
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
Distribution Statement : APPROVED FOR PUBLIC RELEASE