%0 Journal Article
%T FRACTURE ANALYSIS OF ROTATING BLADES FOR A FLUE GAS TURBINE<br>烟气轮机动叶片失效分析
%A CHEN Dong-qing
%A <br>陈董清
%J 腐蚀科学与防护技术
%D 2005
%I 
%X The topography,chemical composition and micro structure of one of the fractured totating blades for a flue gas turbine were investigated by SEM/EDAX and metallography.It was shown that the blade underwent severe internal sulphidation along grain boundaries,and simultaneously increase of local stress.The sulphidation and local stress gave rise to the generation of cracks in the blade.The further sulphidation and the concentrated stress partly due to vibration and temperature difference between the blade and turntable accelerated the crack propagation,eventually resulting in the fracture of the blades.
%K gas turbine
%K rotating blade
%K sulphidation
%K corrosion fatigue
%K fracture<br>气轮机动叶片
%K 硫化
%K 腐蚀疲劳
%K 断裂
%K 失效分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=9F6E6EC8BA5BB62698F6640073DDD6E1&aid=BEFEE9C4AEE122E8&yid=2DD7160C83D0ACED&vid=BCA2697F357F2001&iid=E158A972A605785F&sid=7979125BBE749348&eid=B4E8EA49DAAEB84F&journal_id=1002-6495&journal_name=腐蚀科学与防护技术&referenced_num=0&reference_num=6