中國(guó)有色金屬學(xué)報(bào)(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 14 No. 1 February 2004 |
pure nickel in molten LiCl-Li2O①
WANG Xiu-min(王秀敏), ZHU Mei-Li(祝美麗)
（Department of Materials Engineering, Dalian University of Technology, Dalian 116024, China）
Abstract:The pack boriding process was used to treat pure nickel at a boriding temperature of 950℃for a boriding time of 5 h. A dense and continuous borided layer with 40μm thickness was obtained on pure nickel. Corrosion behavior of the borided layer was investigated in molten LiCl-10%Li2O(mass fraction) at 750℃in air. The mass loss of the boriding coating was 8.4 mg·cm-2after being corroded for 50 h in the melt, which is about three times lower than that of unborided pure nickel. The preferential corrosion of B in borided layer effectively prevents the corrosion of nickel, which improves the corrosion resistance of pure nickel in molten LiCl-Li2O.
Key words: pure nickel; borided nickel; molten LiCl-Li2O; corrosion
