Accession Number:

AD0818490

Title:

COMMERCIAL SUPERSONIC TRANSPORT PROGRAM. PHASE II-C REPORT. HIGH STRENGTH STEEL EVALUATION FOR SUPERSONIC AIRCRAFT.

Descriptive Note:

Rept. for 1 Nov 65-31 Dec 66,

Corporate Author:

BOEING CO SEATTLE WA SUPERSONIC TRANSPORT DIV

Personal Author(s):

• Guthrie, James L.

Report Date:

1967-03-01

Pagination or Media Count:

246.0

Abstract:

Forged billets of three vacuum melt heats of 4330 V-Modified, H-11 Modified, 9Ni-4Co-0.30C, 9Ni-4Co-0.45, and Maraging 18 percent Ni 250 and two heats of 300M were evaluated to provide high strength steel alloy selection data for heavy section aircraft components. The evaluation included the following types of tests tensile, precracked charpy impact, plane strain fracture toughness, stress corrosion, hydrogen embrittlement susceptibility, elevated temperature stability, and fatigue. The results of the testing are discussed and are related to alloy selection considerations. Author

Descriptors:

• *JET TRANSPORT AIRCRAFT
• *AIRFRAMES
• SUPERSONIC AIRCRAFT
• STEEL
• STRUCTURAL PROPERTIES
• FRACTURE(MECHANICS)
• FATIGUE(MECHANICS)
• STRESS CORROSION
• HYDROGEN EMBRITTLEMENT
• METALLURGY
• STABILITY
• TENSILE PROPERTIES
• CRACKS
• SALT SPRAY TESTS
• THERMAL STRESSES
• NOTCH TOUGHNESS
• TEST METHODS
• MICROPHOTOGRAPHY
• HIGH TEMPERATURE
• NICKEL ALLOYS
• COBALT ALLOYS
• CARBON
• BAINITE
• COMMERCIAL AIRCRAFT

Subject Categories:

• Civilian Aircraft
• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE