00000nam 2200000zi 4500 9.953833 CaOODSP 20250916140858 m o d f cr |n||||||||| 250806e199411 bccad obt f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- DR52-11/19-1994E-PDF Lenard, D. R., author. The effects of hard anodizing on the stress corrosion cracking of aluminium alloys / by D.R. Lenard and D.L. Starratt. Victoria, B.C. : Defence Research Establishment Pacific = Centre de recherches pour la défense pacifique : Research and Development Branch, Department of National Defence, November 1994. 1 online resource (29 pages, 3 unnumbered pages) : illustrations, charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier Technical memorandum ; 94-126 Digitized edition from print [produced by Defence Research and Development Canada]. "Unclassified." Includes bibliographical references (pages 23-25). "The breaking load method was used to determine the effect of alternate immersion in sea water on uncoated, sulphuric acid anodized and hard anodized specimens of AA 7075-T651 in order to evaluate the benefits of anodizing the aluminum pressure hull of an autonomous underwater vehicle to reduce the risk of stress corrosion cracking. The original test method showed that anodizing delayed the onset of stress corrosion cracking of specimens subjected to an externaly-applied stress of 69 Mpa, with hard anodizing providing a greater benefit than sulphuric acide anodizing. Anodizing was also shown to delay the onset of intergranular cracking in the absence of an external stress"--Abstract. Stress corrosion. Aluminum alloys. Submarines (Ships) Corrosion sous tension. Aluminium Alliages. Sous-marins. Defence Research Establishment Pacific, issuing body. Canada. Department of National Defence. Research and Development Branch, issuing body. Technical memorandum (Defence Research Establishment Pacific) 94-126. (CaOODSP)9.936067 PDF 1.35 MB https://publications.gc.ca/collections/collection_2025/rddc-drdc/DR52-11-19-1994-eng.pdf