Aspects of the tribological behaviour of powders recycled from rapid steel treated sub-zero*

13th International Conference on Tribology

Radu, S.^1 ; Ciobanu, M.^1

Department of Engineering and Management of Technological Systems, Faculty of Mechanics, University of Craiova, Str. Al. I. Cuza 13, Craiova

200585, Romania^1

关键词: Conventional methods;    Cylindrical samples;    High-alloyed steels;    Rapid steels;    Re-sharpening;    Subcritical annealing;    Tribological behaviour;    Tribometers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/174/1/012027/pdf
DOI  :  10.1088/1757-899X/174/1/012027

来源: IOP

【 摘 要 】

The recycling of high-alloyed steels represents a significant opportunity in Powder Metallurgy as it permits the use of raw materials with relatively low prices compared to the conventional methods. Recycling can be achieved by two methods: from spraying debris resulted from worn cutting tools and processes obtained from processing chip drilling and re-sharpening of tools. The research aims to confirm that wastes from rapid steels can become, by the successive processing, metal powders that can thereafter be used for cutting tools of lathe type removable plate. After pressing and sintering the recycling powder, cylindrical samples were obtained that were subsequently applied a subcritical annealing. Wear tests conducted on a tribometer type TRB-01-02541 confirmed that their wear resistance is superior to the same samples that were sintered, hardened and tempered in oil.