Search

Your search keyword '"Yumei Wu"' showing total 4 results
Start Over Author "Yumei Wu" Journal materials research express
4 results on '"Yumei Wu"'

1. Electroless Cu plating on the microstructure and hardness of Al–Cu powder metallurgy alloy

Author

Yumei Wu, Kong Lingliang, Huiping Li, and Chunzhi Zhang

Subjects
Materials science, Polymers and Plastics, Metallurgy, Alloy, Metals and Alloys, chemistry.chemical_element, Sintering, engineering.material, Microstructure, Copper, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Biomaterials, Surface coating, chemistry, Aluminium, Powder metallurgy, Plating, engineering
Published
2019

2. Effect of Ti substitution on the hardness and electrochemical property of laser clad Zr-Al-Co (Ti) amorphous-nanocrystalline coating

Author

Chunzhi Zhang, Huiping Li, Pengyuan Qiu, Canming Wang, Yumei Wu, and Zhichao Li

Subjects
010302 applied physics, Cladding (metalworking), Materials science, Polymers and Plastics, Metals and Alloys, 02 engineering and technology, engineering.material, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Indentation hardness, Nanocrystalline material, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Corrosion, Amorphous solid, Biomaterials, Surface coating, Coating, 0103 physical sciences, engineering, Composite material, 0210 nano-technology
Abstract

Zr60-xAl15Co25Tix (x = 0, 5, 10, and 15 at%) coatings were fabricated on Q235 steel by laser cladding. The influence of Ti substitution on the properties of the coated specimens was evaluated in terms of microstructure, hardness, and corrosion resistance. Results show that the coating exhibited a sound metallurgical bonding to the substrate. The cladding layer composed of amorphous and nanocrystalline phases led to increased hardness and enhanced corrosion resistance compared with the substrate. Microhardness values of the coatings increased with the substitution of Ti for Zr attributing to the higher content of ZrO2 while lower content of amorphous phase. Both the corrosion potential and corrosion current density show that appropriate addition of Ti (5 at%) can further improve the corrosion resistance. The results offer a better understanding of the development and application of Zr-based amorphous coating for corrosive environment.

Published
2018

Catalog

Books, media, physical & digital resources
See catalog results