%0 Journal Article
%T Oxidation Behevior of Pd-Modified Aluminide Coating at High Temperature<br>Oxidation Behavior of Pd-Modified Aluminide Coating at High Temperature
%A Mengjin LI
%A Xiaofeng SUN
%A Hengrong GUAN
%A Xiaoxia JIANG
%A Zhuangqi HU
%A <br>MengjinLI
%A XiaofengSUN
%A HengrongGUAN
%A XiaoxiaJIANG
%A ZhuangqiHU
%J 材料科学技术学报
%D 2003
%I 
%X (Ni,Pd)Al coating, prepared by low pressure pack cementation on the Ni-base superalloy M38 where Pd-20 wt pct Ni alloy was predeposited, consists of a single β-(Ni,Pd)Al phase. The initial isothermal oxidation behavior of (Ni,Pd)Al coating was investigated by TGA, XRD, SEM/EDS at 800～1100℃. Results show that oxidation kinetics accord preferably with parabolic law at 800, 900 and 1100℃, but not at 1000℃.θ-Al2O3 was observed at 800～1100℃. It is found that Pd plays an important role in accelerating the diffusion of Ti from the substrate to the coating surface in the aluminide coating.
%K (Ni
%K Pd)Al coating
%K High temperature oxidation
%K Oxidation kinetics<br>钯
%K 铝
%K 镍合金
%K 动力学
%K 钛
%K 超耐热合金
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=84529CA2B2E519AC&jid=324DC3CAB22330DB19158AE0A9B7BFA5&aid=69737AC5FE20A46E&yid=D43C4A19B2EE3C0A&vid=2A8D03AD8076A2E3&iid=38B194292C032A66&sid=527AEE9F3446633A&eid=F9F74EC1AA08A7B9&journal_id=1005-0302&journal_name=材料科学技术学报&referenced_num=0&reference_num=21