摘要
The effects of rare earth (RE) on the composition, phase structures, surface morphologies and hardness of electrodeposited RE Ni W B SiC composite coatings were discussed. The results show that W and SiC contents in the coatings increase with the increase of RE in the bath. When RE is added in the coatings, the grains are refined and the trend of formation of amorphous coatings is increased. Moreover, the thermal stability of the RE Ni W B SiC composite coatings is enhanced. The hardness of the coatings is increased with the increase of heat treatment temperature, and it reaches the peak value when heated at 400 ℃. Besides, the hardness of the RE Ni W B SiC coatings is higher than that of the Ni W B SiC coatings.
The effects of rare earth (RE) on the composition, phase structures, surface morphologies and hardness of electrodeposited RE-Ni-W-B-SiC composite coatings were discussed. The results show that W and SiC contents in the coatings increase with the increase of RE in the bath. When RE is added in the coatings, the grains are refined and the trend of formation of amorphous coatings is increased. Moreover, the thermal stability of the RE-Ni-W-B-SiC composite coatings is enhanced. The hardness of the coatings is increased with the increase of heat treatment temperature, and it reaches the peak value when heated at 400 degrees C. Besides, the hardness of the RE-Ni-W-B-SiC coatings is higher than that of the Ni-W-B-SiC coatings.
出处
《中国有色金属学会会刊：英文版》
CSCD
2000年第4期538-541,共4页
Transactions of Nonferrous Metals Society of China
基金
Project ( 95B11-5 )supportedbyYunnanProvinceScienceandTechnologyFunds
