caa a22 4500 463229177 CHVBK 20180405153236.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0784-2 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0784-2 Role of coarse intermetallic particles on the environmentally assisted cracking behavior of peak aged and over aged Al-Zn-Mg-Cu-Zr alloy during slow strain rate testing [Elektronische Daten] [M. Bobby Kannan, V. Raja] Coarse intermetallic particles (larger than 1μm in size) in Al-Zn-Mg-Cu-Zr (7010) alloy were found to significantly influence the crack initiation of the over aged alloy while not affecting the more susceptible peak aged alloy, when subjected to slow strain rate testing (SSRT) in 3.5% NaCl solution. A detailed study was undertaken to examine the causes of such an observation. The study shows that the galvanic action and/or dealloying of the coarse intermetallic particles are responsible for the crack initiation in the over aged alloy. However, this phenomenon is not seen in the peak aged alloy due to its inherent environmentally assisted cracking (EAC) susceptibility and the consequent failure in shorter duration, before the coarse particles can exert an influence. Springer Science+Business Media, LLC, 2007 Bobby Kannan M. Corrosion Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut Raja V. Corrosion Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5458-5464 0022-2461 42:14<5458 2007 42 10853 https://doi.org/10.1007/s10853-006-0784-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0784-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bobby Kannan M. Corrosion Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut NATIONALLICENCE 700 1- Raja V. Corrosion Science and Engineering, Indian Institute of Technology Bombay, Powai, 400076, Mumbai, India aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5458-5464 0022-2461 42:14<5458 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer