Effect of pulse current on the diffusion behavior of FeCoCrNiMox-Al couples

Xie, Siyao; Li, Ruidi; Tang, Linjun; Yuan, Tiechui

doi:10.1016/j.matlet.2019.07.004

Cited by 18 publications

(1 citation statement)

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“…The pulse current has a significant effect on the microstructure and properties of the alloy [28][29][30][31][32][33]. Xie Siyao et al [34] studied the diffusion behaviour of Al in FeCoCrNiMox HEAs in the temperature range of 773-873 K with and without pulse current. The results show that the diffusion coefficient (D) of pulsed current increases hundreds of times and the exponential factor (D 0 ) of diffusion is greatly increased compared with that without current.…”

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confidence: 99%

Comparison between heat treatment and SPS treatment on CoCrFeMnNi/WC coatings

Zhou

Yang

Zhang

2022

Surface Engineering

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In this study, spark plasma sintering (SPS) was used for the thermoelectric composite treatment of CrMnFeCoNi/WC plasma transfer arc welding (PTA) coating to explore the difference compared with common heat treatment (HT). X-ray diffraction (XRD) was used to detect the phase composition, and a combination of scanning electron microscopy (SEM) and transmission electron microscopy (TEM) was used to characterize the microstructure. The performance of nano-indentation was tested. The results show that the coating after PTA has a large dislocation density due to internal stress, while HT and SPS treatment significantly reduce the internal stress and dislocation density of the coating. Nanoindentation test shows that the hardness of the coating after PTA is 4.24 GPa, and after HT, the hardness decreases to 4.05 GPa. However, the coating after SPS treatment has significant precipitation-strengthening effect due to the wide existence of the precipitated phase, and the hardness rises to 4.78 GPa.

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