DOAJ Open Access 2018

Secondary hardening in laser rapidly solidified Fe68(MoWCrVCoNiAlCu)32 medium-entropy high-speed steel coatings

Hui Zhang Bang Dou Hao Tang Yizhu He Sheng Guo

Abstrak

Novel Fe68(MoWCrVCoNiAlCu)32 (at.%) medium-entropy high-speed steel (ME-HSS) coatings, containing various carbon contents from 0.65 to 1.05 wt%, are prepared by laser rapid solidification. The newly prepared ME-HSS coatings are characterized by a hard martensitic matrix enhanced by secondary hardening, and specifically by coherent nano-sized M2C. The secondary hardening effect is enhanced with the increasing carbon content. The high amount of alloying elements in ME-HSS coatings results in excellent oxidative wear resistance, without leading to serious compositional segregation and coarsening of carbides. Keywords: High speed steel, Coating, Medium-entropy alloy, Secondary hardening, Martensite

Topik & Kata Kunci

Materials of engineering and construction. Mechanics of materials

Penulis (5)

Hui Zhang

Bang Dou

Hao Tang

Yizhu He

Sheng Guo

Format Sitasi

APA MLA BibTeX

Zhang, H., Dou, B., Tang, H., He, Y., Guo, S. (2018). Secondary hardening in laser rapidly solidified Fe68(MoWCrVCoNiAlCu)32 medium-entropy high-speed steel coatings. https://doi.org/10.1016/j.matdes.2018.08.050

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Informasi Jurnal

Tahun Terbit: 2018
Sumber Database: DOAJ
DOI: 10.1016/j.matdes.2018.08.050
Akses: Open Access ✓