超超临界汽轮机用ZG13Cr9Mo2Co1VNbNB钢的组织与性能研究  

Study on Structure and Performance of Ultra Supercritical Steam Turbines ZG13Cr9Mo2Co1VNbNB Steel

作　　者：赵义瀚[1] 孙福民[1] 彭建强[1] 张宏涛[1] 李季[2] 

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046 [2]大庆石化公司热电厂,大庆163714

出　　处：《汽轮机技术》2016年第3期235-237,共3页Turbine Technology

摘　　要：介绍了1000MW等级超超临界汽轮机组大型铸件用材ZG13Cr9Mo2Co1VNbNB钢。通过相图计算、模拟焊后热处理,对比了材料的组织性能变化。试验结果表明:ZG13Cr9Mo2Co1VNbNB钢正火+高温回火后为典型的板条马氏体组织;材料中未形成Laves相;模拟焊后热处理降低了材料的屈服强度和韧性,塑性有所提高。This article describes the ultra-supercritical steam turbine ZG13Cr9Mo2ColVNbNB casting steel. By calculating the phase diagram, the simulated post-weld heat treatment, compared to the changes in microstructure and properties of materials. The results show that： the microstructure of ZG13Cr9Mo2Col VNbNB steel were lath martensite after normalizing and tempering; Laves phase is not formed; the simulated post-weld heat treatment reduced the toughness, improved the plastic.

关 键 词：超超临界汽轮机组 ZG13Cr9Mo2Co1VNbNB钢 板条马氏体组织 

分 类 号：TK265[动力工程及工程热物理—动力机械及工程]