期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0921-5093(00)02002-5
关键词
9Cr steel; tungsten; tempered martensite; creep rated; creep rupture strength
The creep deformation behavior has been investigated for simple 9Cr-W and solute modified 9Cr-WVTa steels containing high W, where Fe2W Laves phase precipitates during creep. Creep tests were carried out at 823, 873 and 923 K for up to 15 000 h. The precipitation of Fe2W effectively decreases a minimum creep rate, but the large coarsening of Fe2W promotes the acceleration of creep rate after reaching a minimum creep rate. As a result, the effect of Fe2W on the extension of creep rupture time is rather small, The fine MC carbides are significantly effective for the stabilization of lath martensitic microstructure. (C) 2001 Elsevier Science B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据