Accession Number : AD0772417

Title :   Evaluation of High Strength Steels for Heavy Section Applications.

Descriptive Note : Engineering technical rept.,

Corporate Author : MCDONNELL DOUGLAS CORP LONG BEACH CALIF DOUGLAS AIRCRAFT DIV

Personal Author(s) : Thrash,C. V.

Report Date : 29 NOV 1965

Pagination or Media Count : 145

Abstract : Static and dynamic properties of these high strength steels were determined: Marage 250, Marage 300, HP 9 Ni-4 Co-45C (martensitic), HP 9Ni-4Co-45C (bainitic), 4340 (260 to 280 Ksi), 433OV and Hy-Tuf. The properties investigated were: tensile and notch tensile; axial fatigue, notched (K sub t = three) and unnotched (K sub t = one); fracture toughness, face crack and through crack; Charpy V-notch impact; resistance to hydrogen embrittlement cracking; sustained load and resistance to stress corrosion cracking. (Modified aouthor abstract)

Descriptors :   *Steel, High strength alloys, Maraging steels, Airframes, Aircraft, Mechanical properties, Stress corrosion, Hydrogen embrittlement, Fatigue(Mechanics), Tensile properties, Fracture(Mechanics), Impact strength

Subject Categories : Aircraft
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE