Tribological tests of wear-resistant coatings used in the production of drill bits of horizontal and inclined drilling

13th International Conference on Films and Coatings

Maslov, A.L.^1 ; Markova, I.Yu.^1 ; Zakharova, E.S.^1 ; Polushin, N.I.^1 ; Laptev, A.I.^1

National University of Science and Technology MISiS, Moscow, Russia^1

关键词: Contact areas;    Crack resistance;    Drilling bit;    Micro-structural;    Tribological tests;    Wear-resistant coating;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/857/1/012029/pdf
DOI  :  10.1088/1742-6596/857/1/012029

来源: IOP

【 摘 要 】

It is known that modern drilling bit body undergoes significant abrasive wear in the contact area with the solid and the retracted cuttings. For protection of the body rationally use wear-resistant coating, which is welded directly to the body of bit. Before mass use of the developed coverings they need to be investigated by various methods that it was possible to characterize coatings and on the basis of the obtained data to perform optimization of both composition of coatings and technology. Such methods include microstructural studies tribological tests, crack resistance and others. This work is devoted to the tribological tests of imported brand of coatings WokaDur NiA and and domestic brand of coating HR-6750 (both brands manufactured by Ltd "Oerlikon Metco Rus"), used to protect the bit body from abrasive wear.