High Temperature Behavior of Cr3C2-NiCr Coatings in the Actual Coal-Fired Boiler Environment

被引：17
作者：
Bhatia, Rakesh [1 ]
Sidhu, Hazoor Singh [1 ]
Sidhu, Buta Singh [2 ]
机构：
[1] Punjabi Univ, Yadavindra Coll Engn, G K Campus,Talwandi Sabo, Bathinda 151302, Punjab, India
[2] Punjab Tech Univ, Kapurtala, Punjab, India
来源：
METALLURGICAL AND MATERIALS TRANSACTIONS E-MATERIALS FOR ENERGY SYSTEMS | 2015年 / 2卷 / 01期
关键词：
D O I：
10.1007/s40553-015-0045-x
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Erosion-corrosion is a serious problem observed in steam-powered electricity generation plants, and industrial waste incinerators. In the present study, four compositions of Cr3C2-(Ni-20Cr) alloy coating powder were deposited by high-velocity oxy-fuel spray technique on T-91 boiler tube steel. The cyclic studies were performed in a coal-fired boiler at 1123 K +/- 10 K (850 degrees C +/- 10 degrees C). X-ray diffraction, scanning electron microscopy/energy dispersive X-ray analysis and elemental mapping analysis techniques were used to analyze the corrosion products. All the coatings deposited on T-91 boiler tube steel imparted hot corrosion resistance. The 65 pctCr(3)C(2)-35 pct (Ni-20Cr)-coated T-91 steel sample performed better than all other coated samples in the given environment.
引用
收藏
页码：70 / 86
页数：17
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