APPLIED LASER, Volume. 41, Issue 6, 1189(2021)
Effect of TiC Content on the Properties of Fe Based Coating by Laser Cladding
A 10 kW fiber laser was used to conduct the experimental study on the Fe-based TiC coating by laser cladding in this paper .Effect of different TiC content on the macroscopic quality of Fe-based cladding was discussed. Optical microscope was adopted to reveal the microstructure and phase structure of the coatings. Furthermore, a MM-U10G type friction wear tester was used to measure the wear resistance of the coatings. Results show that, the surface of laser cladding layer with different TiC content is formed smoothly. With the improvement of TiC mass fraction, Ti content of cladding layer increases continuously and the cracking tendency increases. When the TiC mass fraction was 0, the microstructure of the cladding layer was mainly dendrite with uniform microstructure. When the TiC mass fraction was 10%, the second phase occurs. And with the increase of TiC content, the number of the second phase increases, the particle size is larger, the distribution is denser, and the microhardness of cladding layer also increases. When the TiC mass fraction is 30%, the hardness of the cladding layer is the highest overall, which is ranging from 920-1 400 HV. The wear resistance of cladding layer is also increasing with the improvement of TiC content.
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Zhou Dan, Guo Jishan, Xiong Dahui, Wang Aihua, Yang Zhixiang, Ye Bing. Effect of TiC Content on the Properties of Fe Based Coating by Laser Cladding[J]. APPLIED LASER, 2021, 41(6): 1189
Received: Dec. 10, 2020
Accepted: --
Published Online: Feb. 17, 2022
The Author Email: Dan Zhou (zhoudan0609@126.com)