Stellite 12 alloy was cladded on the surface of Thrust runner of a main pump using HIP technology. After product testing, lots of corrosions were found on the hard layer. SEM and EDS analysis technologies were used in order to find out the causes and mechanism inducing these corrosions. SEM results indicated that two kinds of corrosions locating on the hard layer. One type is central corrosion pit, another type is Selective Phase Corrosion (SPC).EDS showed that the central and adjacent corrosive areas were rich in carbon, low in cobalt, chromium and tungsten elements for the first type of corrosion. As for the second type of corrosion, EDS indicated that the corrosive zones were typically high in tungsten, chromium and carbon, and low in cobalt. Meanwhile, the presence of sulfur and chlorine elements may aggravate the initiation and continuation of corrosion.
Skip Nav Destination
2017 25th International Conference on Nuclear Engineering
July 2–6, 2017
Shanghai, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5780-9
PROCEEDINGS PAPER
Study on Corrosion Mechanism of Stellite Hard Alloy Layer of a Main Pump Component
Zhang Wenguang,
Zhang Wenguang
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Yang Chenggang,
Yang Chenggang
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Yi Zilong,
Yi Zilong
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Li Chan,
Li Chan
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Pu Chenghao,
Pu Chenghao
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Xu Yuting,
Xu Yuting
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Han Dongao
Han Dongao
Nuclear and Radiation Safety Center, MEP, Beijing, China
Search for other works by this author on:
Zhang Wenguang
Nuclear and Radiation Safety Center, MEP, Beijing, China
Yang Chenggang
Nuclear and Radiation Safety Center, MEP, Beijing, China
Yi Zilong
Nuclear and Radiation Safety Center, MEP, Beijing, China
Li Chan
Nuclear and Radiation Safety Center, MEP, Beijing, China
Pu Chenghao
Nuclear and Radiation Safety Center, MEP, Beijing, China
Xu Yuting
Nuclear and Radiation Safety Center, MEP, Beijing, China
Han Dongao
Nuclear and Radiation Safety Center, MEP, Beijing, China
Paper No:
ICONE25-67697, V002T03A108; 4 pages
Published Online:
October 17, 2017
Citation
Wenguang, Z, Chenggang, Y, Zilong, Y, Chan, L, Chenghao, P, Yuting, X, & Dongao, H. "Study on Corrosion Mechanism of Stellite Hard Alloy Layer of a Main Pump Component." Proceedings of the 2017 25th International Conference on Nuclear Engineering. Volume 2: Plant Systems, Structures, Components and Materials. Shanghai, China. July 2–6, 2017. V002T03A108. ASME. https://doi.org/10.1115/ICONE25-67697
Download citation file:
31
Views
Related Articles
Hot Corrosion of Gas Turbine Components
J. Eng. Power (January,1979)
Improving Precision in Aluminum Alloy Machining Due to the Application of Diamond-Like Carbon Thin Film
J. Tribol (July,2021)
Hydrogen Damage in Power Boilers
J. Eng. Power (July,1964)
Related Chapters
Effects of Residual Elements on the General Corrosion Resistance of Austenitic Stainless Steels
Effects of Residual Elements on Properties of Austenitic Stainless Steels
Climate Control Isn't Natural
Hot Air Rises and Heat Sinks: Everything You Know about Cooling Electronics Is Wrong
Influence of Transition Elements Fe, Cr, and V on Long-Time Corrosion in PWRs
Zirconium in the Nuclear Industry: Twelfth International Symposium