Accession Number:

AD0691794

Title:

FATIGUE PROPERTIES OF 17-4 PH AND 15-5 PH STEEL IN THE H-900 AND H-1050 CONDITION

Descriptive Note:

Corporate Author:

BOEING VERTOL CO PHILADELPHIA PA

Personal Author(s):

• Raefsky, M.

Report Date:

1968-07-01

Pagination or Media Count:

34.0

Abstract:

The rotating beam fatigue properties of 17-4 PH and 15-5 PH steels were evaluated for the H-900 and H-1050 conditions. In addition, the effect of shot peening on 15-5 PH was investigated. The results indicate that the two alloys behave similarly. Over aging to the H-1050 results in a 5 decrease in the endurance limit when compared to the H-900 condition. Shot peening improves the finite fatigue life by an order of magnitude.

Descriptors:

• *STAINLESS STEEL
• *HEAT TREATMENT
• MICROSTRUCTURE
• AGING(MATERIALS)
• COPPER ALLOYS
• FATIGUE(MECHANICS)
• NICKEL ALLOYS
• METALLOGRAPHY
• CHROMIUM ALLOYS
• COLD WORKING

Subject Categories:

• Properties of Metals and Alloys
• Fabrication Metallurgy

Distribution Statement:

APPROVED FOR PUBLIC RELEASE