Ni-Cr-Al Coating Layer Modified by Friction Stir Processing - Analysis of Microstructure and Element Diffusion

Li Kui Zhu; Xiao Ping Zhou; Ying Ze Fang; Feng Xu

doi:10.4028/www.scientific.net/AMR.1095.616

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Microstructures and Mechanical Properties of Aluminum Coating Produced by Friction Stir Processing
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1095Ni-Cr-Al Coating Layer Modified by Friction Stir...

Ni-Cr-Al Coating Layer Modified by Friction Stir Processing - Analysis of Microstructure and Element Diffusion

Abstract:

Flame thermal spray Ni-Cr-Al coating layer on Q235 steel modified by friction stir processing(FSP) was studied. FSP function area formed a uniform density composite layer, of which internal coating layer formed superfine crystal structure and crystal structure of substrate changed, improved the mechanical properties. The plastic deformation generated by friction stir processing directly influenced the microstructure and mechanical properties. Dynamic recrystallization occurred within a certain range of plastic deformation, temperature and plastic deformation interlocking effect provided advantageous channel to fast element interdiffusion.

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Periodical:

Advanced Materials Research (Volume 1095)

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616-619

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https://doi.org/10.4028/www.scientific.net/AMR.1095.616

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Online since:

March 2015

Authors:

Li Kui Zhu, Xiao Ping Zhou*, Ying Ze Fang, Feng Xu

Keywords:

Element Interdiffusion, Fine Crystallization, FSP, Plastic Deformation

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