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

被引：18

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

页码：70 / 86

页数：17

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