Accession Number:

AD0600008

Title:

INVESTIGATION OF FRACTURE TOUGHNESS IN HIGH STRENGTH ALLOYS.

Descriptive Note:

Rept. for 15 Aug 62-15 Aug 63

Corporate Author:

MANLABS INC CAMBRIDGE MASS

Personal Author(s):

• Lement,B. S.
• Kreder,K.
• Tushman,H.

Report Date:

1964-01-01

Pagination or Media Count:

120.0

Abstract:

A comprehensive investigation of the fracture toughness of 4335-V steel tempered in the range of 400 to 800 F was carried out based primarily on precracked Charpy impact and slow bend tests of regular and brittle-boundary specimens with thicknesses in the range of about 0.04 to 0.40 inch. These tests were supplemented by notched and unnotched tensile tests, and by metallographic and fractographic examinations using both light and electron microscopy. Author

Descriptors:

• *FRACTURE(MECHANICS)
• TOUGHNESS
• STEEL
• AIRCRAFT PANELS
• ALLOYS
• TENSILE PROPERTIES
• HEAT TREATMENT
• STRESSES
• METALLOGRAPHY
• GRAIN STRUCTURES(METALLURGY)
• FRACTOGRAPHY

Subject Categories:

• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE