CANCELLED - The Effect of High Energy Ball-milling process on Mechanical Alloying of WC-Hastelloy Material

Monday, May 5, 2025: 2:10 PM
Room 2 (Vancouver Convention Centre)
Mr. Jinhe YANG , BGRIMM Technology Group, Beijing, Beijing, China
Dr. Feng GAO , BGRIMM Technology Group, Beijing, Beijing, China
Ms. Xinyu KE , China Nuclear Power Engineering Co.,LTD, Beijing, Beijing, China
Dr. Lei HUANG , BGRIMM Technology Group, Beijing, Beijing, China
Ms. Keyi HUANG , BGRIMM Technology Group, Beijing, Beijing, China
Mr. Jie LI , BGRIMM Technology Group, Beijing, Beijing, China
Mrs. Luyan WANG , BGRIMM Technology Group, Beijing, Beijing, China
Mr. Zhengliang LI , BGRIMM Technology Group, Beijing, Beijing, China
In this paper, the effect of high-energy ball-milling process and sintering activator on the powder preparation of WC-Hastelloy were investigated and the corrosion resistance of WC-Hastelloy coatings were tested. By studying the effects of ball-milling time and ball-milling speed on the distribution of Ni, Fe, and Cr in WC-Hastelloy powder, the optimal ball-milling process parameters were determined. The experimental results show that the powder has the best uniformity when the ball-milling time is 2 hours and the ball-milling speed is 350 r/min. The effect of nickel phosphide as sintering activator on powder densification were studied. In addition, the acid corrosion resistance of HVOF WC-Hastelloy coatings were tested by salt spray and electrochemical polarization. It showed a better acid corrosion resistance compared to the HVOF WC-10Co4Cr and WC-12Co cermet coating.
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