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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1015232.pdf


Report Date : 07 May 2014


Pagination or Media Count : 51


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


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


Distribution Statement : APPROVED FOR PUBLIC RELEASE