【作者】 江河； 叶建水； 董建新； 张麦仓； 姚志浩；

【Author】 Jiang He;Ye Jianshui;Dong Jianxin;Zhang Maicang;Yao Zhihao;School of Material Science and Engineering,University of Science and Technology Beijing;

【机构】 北京科技大学材料科学与工程学院；

【摘要】 随着能源和环境问题日益严峻,超超临界电站的发展成为研究热点。超超临界电站用材料的选材标准严苛,在发展和选材过程中合金的焊接性及焊接工艺是其能否进入实际应用的重要指标之一。本文着重介绍了超超临界电站候选材料740H合金和617B合金焊接后的组织特征,对不同焊件进行显微组织观察和维氏硬度测试。更多还原

【Abstract】 The development of ultra-supercritical(USC) power plants has become a focus recently as to the more and more serious problem of energy and environment.The materials requirements for USC power plants are severe,and the weldability and the welding process are also important criteria in the material choosing process.The welding joints microstructure characteristics of Inconel 740 H and Inconel 617 B,two candidate materials for USC power plants,are elaborated and the hardness tests are carried out in this paper.更多还原