Accession Number:

AD1015232

Title:

Effect of Water Vapor Pressure on Fatigue Crack Growth in Al-Zn-Cu-Mg Alloy Over Wide-Range Stress Intensity Factor Loading

Descriptive Note:

Journal Article

Corporate Author:

United States Air Force Academy Air Force Academy United States

Personal Author(s):

• Burns,J. T.
• Bush,R. W.
• Ai,J.
• Jones,J. L.
• Lee,Yongwon
• Gangloff,R. P.

Report Date:

2014-05-07

Pagination or Media Count:

51.0

Abstract:

The object of this research is to broaden understanding of the deleterious effect of high purity water vapor on fatigue crack growth rate dadN in aluminum alloy 7075-T651, with focus on the low dadN regime.

Descriptors:

• WATER VAPOR
• vapor pressure
• FATIGUE CRACKING
• ALUMINUM ALLOYS
• LOADS (FORCES)
• stresses
• HYDROGEN EMBRITTLEMENT
• LAMINAR FLOW
• CRACK TIPS
• diffusion

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE