Electrochemical Behavior and Passive Film Properties of Hastelloy C22 Alloy, Laser Cladding C22 Coating, and Ti–6al–4v Alloy in Sulfuric Acid Dew Point Corrosion Environment

Laser cladding technology is a reliable and efficient surface modification technology, which has been widely used in surface alloying and composite processing of steel materials. Firstly, the characteristics of laser cladding technology were introduced, and the effects of process control and the material system on the geometric shape, size, microstructure, and properties of cladding coating were analyzed by summarizing the research results of laser cladding on steel surfaces. The results show that with the increase of laser power, the dilution rate and width of the cladding coating increase, and the grain becomes coarse. Thus, the wear resistance deteriorates. Compared with alloy cladding coating, composite cladding coating exhibits better wear and corrosion resistance, but the plastic toughness is worse than alloy cladding coating. The research progress of surface alloying and composite processing of steel worldwide was analyzed from various aspects. Current results suggest that laser cladding alloying and compounding can enhance the wear resistance and corrosion resistance of steel materials. Based on the summary of the current research results, the development prospect and planning of laser cladding technology in the field of surface alloying and composite processing of steel are further pointed out.

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Research Progress on Laser Cladding Alloying and Composite Processing of Steel Materials

Han

Zhou

Chen

et al. 2022

Metals

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Electrochemical Behavior and Passive Film Properties of Hastelloy C22 Alloy, Laser Cladding C22 Coating, and Ti–6al–4v Alloy in Sulfuric Acid Dew Point Corrosion Environment

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Research Progress on Laser Cladding Alloying and Composite Processing of Steel Materials

Research Progress on Laser Cladding Alloying and Composite Processing of Steel Materials

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