Micrographic detection of plastic deformation in nickel-base alloys

Patent · Sat Sep 20 00:00:00 EDT 1980

OSTI ID:5830432

Steeves, A F; Bibb, A E

A method for detecting low levels of plastic deformation in metal articles comprising electrolytically etching a flow free surface of the metal article with nital at a current density of less than about 0.1 amp/cm/sup 2/ and microscopically examining the etched surface to determine the presence of alternating striations. The presence of striations indicates plastic deformation in the article.

• DOE Contract Number: AC12-76SN00052
• Assignee: ERA-08-054544; EDB-83-178510
• Application Number: ON: DE83018035
• OSTI ID: 5830432
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DEFORMATION
DETECTION
NICKEL BASE ALLOYS
NONDESTRUCTIVE TESTING
ETCHING
STRIATIONS
ALLOYS
MATERIALS TESTING
NICKEL ALLOYS
SURFACE FINISHING
TESTING
420500* - Engineering- Materials Testing