Microstructure and creep properties of high Cr resisting weld metal alloyed with Co

被引：5
|
作者：
Wang, Xue [1 ]
Zhan, Liang-fei [1 ]
Pan, Qian-gang [2 ]
Liu, Zhi-jun [2 ]
Liu, Hong [1 ]
Tao, Yong-shun [2 ]
机构：
[1] Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Peoples R China
[2] DongFang Boiler Grp Co Ltd, Zigong 643001, Peoples R China
来源：
JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A | 2010年 / 11卷 / 10期
基金：
中国国家自然科学基金;
关键词：
9Cr steels; Weld metal; Microstructure; Creep properties; POWER-PLANTS; 650-DEGREES-C; STEELS; DESIGN;
D O I：
10.1631/jzus.A1000215
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A 9% Cr ferritic steel weld metal containing 1% Co, partially substituted for nickel, was prepared by submerged arc welding (SAW) processing. The microstructure and creep properties of the weld metal were investigated. The microstructure exhibited a fully tempered martensitic structure free of delta-ferrite. The creep properties of the obtained weld metal were inferior to those of the P92 base metal at 600 and 650 degrees C. The values of A and n for weld metal in the Norton power law constitution at 650 degrees C are 1.1 x 10(-21) and 8.1, respectively.
引用
收藏
页码：756 / 760
页数：5
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