上海大学学报(自然科学版) ›› 2011, Vol. 17 ›› Issue (4): 522-528.doi: 10.3969/j.issn.1007-2861.2011.04.019

• 材料科学 • 上一篇    下一篇

核电站关键材料中的晶界工程问题

夏爽1,李慧2,周邦新1,陈文觉1,姚美意1,李强2,刘文庆2,王均安1,褚于良2,彭建超2,张金龙1   

  1. (1.上海大学 材料研究所,上海 200072; 2.上海大学 微结构重点实验室,上海 200444)
  • 出版日期:2011-08-30 发布日期:2011-08-30
  • 通讯作者: 夏爽(1979~),男,副研究员,博士,研究方向为核电关键材料的晶界工程研究、材料显微组织表征及控制. E-mail:xs@shu.edu.cn
  • 基金资助:

    国家自然科学基金资助项目(50974148);国家重点基础研究发展计划(973计划)资助项目(2006CB605001,2011CB610502);上海市重点学科建设资助项目(S30107)

Grain Boundary Engineering Issues in Key Structural Materials Used for Nuclear Power Plants

XIA Shuang1,LI Hui2,ZHOU Bang-xin1,CHEN Wen-jue1,YAO Mei-yi1,LI Qiang2, LIU Wen-qing2,WANG Jun-an1,CHU Yu-liang2,PENG Jian-chao2,ZHANG Jin-long1   

  1. (1. Institute of Materials Science, Shanghai University, Shanghai 200072, China;2. Laboratory for Microstructures, Shanghai University, Shanghai 20444, China)
  • Online:2011-08-30 Published:2011-08-30

摘要: 简要介绍上海大学“核电站关键材料的基础问题研究”课题组关于690合金晶界工程(grain boundary engineering,GBE)的研究情况.借助上海大学分析测试中心的先进材料分析测试设备,开展了一些有特色的工作.从显微组织的表征与控制的角度,研究材料微观结构对宏观性能的影响.简要介绍690合金晶界元素偏聚、晶界碳化物析出、晶界网络分布控制以及对耐腐蚀性能影响等方面的研究结果.

关键词: 690合金, 核电站关键材料, 晶间腐蚀, 晶界工程, 晶界偏聚, 晶界网络, 碳化物

Abstract: Grain boundary engineering (GBE) issues of Alloy 690 are briefly summarized. The work was carried out by the research group “Fundamental Issues of the Key Structural Materials for Nuclear Power Plants” at Shanghai University. By using advanced material characterization techniques, the microstructures were characterized to establish its relationship with the properties. This article presents the research findings in grain boundary segregation, carbide precipitation, grain boundary network control and its effect on the intergranular corrosion resistance.

Key words: Alloy 690, carbide, grain boundary engineering (GBE), grain boundary network, grain boundary segregation, intergranular corrosion, key structural materials for nuclear power plants

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