Abrasive wear of Hilong BoTN hardfacings

International Conference on Mechanical Engineering and Applied Composite Materials

机械制造;材料科学

Fedorova, L.^1 ; Fedorov, S.^1 ; Sadovnikov, A.^1 ; Ivanova, Y.^2 ; Voronina, M.^3

D.Sc. in Engineering Bauman Moscow State Technical University, Moscow, Russia^1

Bauman Moscow State Technical University, Moscow, Russia^2

Saint-Petersburg Mining University, Russia^3

关键词: Abrasive action;    Geological formation;    Hard facing materials;    Low hardness;    Outside diameter;    Wear resistant;    Wear resistant materials;    Weld seam;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/307/1/012038/pdf
DOI  :  10.1088/1757-899X/307/1/012038

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The spread of steels, which are used to produce locks of steel drill pipes, adversely affects their wear resistance, which, in combination with low hardness of HV 24002800 MPa as well as of the thread of screw, results in low wear resistance and the need for their reconstruction at the pipe control shop. An efficient way of improving the quality of drill pipe jonts is to hard-face them by the outside diameter with wear-resistant materials (hardbanding). One of the companies engaged in the development of hardfacing materials and hardbanding is Hilong (China) with weld seams of the brand BoTn. According to the results of the studies the following conclusion can be made: hardfacing increases the durability of the hardware, contributing to an increase in wear resistance of locks of DP under the conditions of abrasive action of aggressive geological formations; the usage of DP without wear-resistant weld seams is impermissible, because their further operation, as part of the drill-stem, can lead to emergency consequences; application of the pipes with the hardfacing collars together with the collars without hardfacing, due to varying degree of wear of jonts in the drill-stem, is also impermissible.