Accession Number:

AD0606552

Title:

ROTATING BEAM FATIGUE AND CORROSION FATIGUE PROPERTIES OF ALUMINUM AND MAGNESIUM ALLOYS,

Descriptive Note:

Corporate Author:

ARMY BALLISTIC MISSILE AGENCY REDSTONE ARSENAL ALA

Personal Author(s):

Report Date:

1958-02-20

Pagination or Media Count:

24.0

Abstract:

The S-N curves indicate that the materials in order of decreasing fatigue resistance at all stress levels are 2014-T6, 2024-T4, 5086-H34, 5052-H34, 5052-H32, and AZ 31B. The fatigue resistance of the heat treated aluminum alloys, 2014-T6 and 2024-T4, is much superior to the fatigue resistance of the strain hardened alloys, 5086-H34, 5052-H34, and 5052-H32.... The S-N curves for the corrosion fatigugue tests indicate that the materials in order of decreasing corrosion fatigue resistance at stresses up to 150 percent of their endurance limits are 5086-H34, 5052-H34, 2024-T4, 2014-T6, 5052-H32, and AZ 31B. In this stress range, 5086-H34 aluminum is much superior to the other materials. At stresses above 150 percent of their endurance limits, the materials in order of decreasing corrosion fatigue resistance are 2014T6, 2024T4, 5086-H34, 5052-H34, 5052-H32, and AZ 31B. The corrosion fatigue resistance of AZ 31B was very poor at all stresses. Author

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE