CONTROL OF FISSURING IN INCONEL BY REGULATING PROCESS VARIABLES

Technical Report · Mon Sep 18 00:00:00 EDT 1961

OSTI ID:4814909

Carey, J D; McKittrick, G F

The detection of fissures, the identification of constituents producing fissures, and the means of preventing their formation are discussed, for Inconel welds. It is found that enengy input alone does not measurably affect the degrce of fissuring. A study of postweld heat tratments as a means of eliminating fissures is conducted. Various stringer bead and weaving techniques are evaluated. The weaving shows a substantial decrease in the number of fissures observed in subsequent bend tests. X-ray diffraction and electron microscope studies identify grain boundary constituents, such as niobium carbide, that may promote fissuring. (auth)

• Research Organization: Knolls Atomic Power Lab., Schenectady, N.Y.
• DOE Contract Number: W-31-109-ENG-52
• NSA Number: NSA-16-009166
• OSTI ID: 4814909
• Report Number(s): KAPL-2171
• Country of Publication: United States
• Language: English

Related Subjects

ALUMINUM ALLOYS
CHROMIUM ALLOYS
CRACKS
ELECTRON MICROSCOPY
GRAIN BOUNDARIES
HEAT TREATMENTS
INCONEL ALLOYS
MATERIALS TESTING
METALS, CERAMICS, AND OTHER MATERIALS
NICKEL ALLOYS
NIOBIUM ALLOYS
NIOBIUM CARBIDES
TENSILE PROPERTIES
TITANIUM ALLOYS
WELDS
X RADIATION