%0 Journal Article
%T STUDY ON FRACTOGRAPHY OF TRANSGRANULAR SCC OF 70Cu-3OZn IN AN AMMONIACAL SOLUTION
%A SQ Li
%A JI Dickson
%A JP Bailon
%A Beijing
%A China
%A <br>S.Q.Li
%A J.I.Dickson
%A J.P.Bailon
%J 金属学报(英文版)
%D 1998
%I 
%X The microfractography of transgranular stress corrosion cracking (TSCC) of 70Cu-30Zn a-brass in ammoniacal solution was studied. The observations indicate that on a very microscale, the crack path of TSCC of or-brass follows {111} planes. The crack path very often alternates between {111} Planes to result in "cleavage-like"facet, the usual average orientation of which is {110} with preferential microscopic crack propagation in (100) and (112) directions. The average orientation of wide secondary facets is often close to {100}. The size of {111} microfacets increases with incrmsing stress intensity K, which indicates that the microscopic crack path follows {111} planes on which some localized slip has occurred. Possible TSCC mechanisms which appear to be consistent with the microfraphic features observed in the present study are also discussed.
%K fractography
%K transgranular stress corrosion cracking (TSCC)
%K 70Cu-30Zn a-brass
%K face-centered cubic (FCC) metal<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=4DF5F46B87478D97DCAFF3F11E4995A8&yid=8CAA3A429E3EA654&vid=708DD6B15D2464E8&iid=94C357A881DFC066&sid=15251AE9C02726D3&eid=FA88DCCE84EA0A56&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=29