Results 21 to 30 of about 13,468 (252)

Effect of White Layer Obtained by Hard Cutting on the Friction and Wear Performances of GCr15 Bearing Steel Surface [PDF]

Cailiao Baohu, 2022
In order to study the effect of the white layer obtained by hard cutting on the friction and wear performances of the specimen surface, the polycrystalline cubic boron nitride tool was used to cut the GCr15 bearing steel hardly. The hardness of the white
ZOU Pian, YU Ai - bing, WU Qi - liang, WANG Gui - lin, LI Ke - fan, WU Sen - kai
doaj   +1 more source

Tribological Behaviors of Polycrystalline Cubic Boron Nitride Sliding against Bearing Steel in Vacuum Conditions

Coatings, 2022
In order to understand the surface and interface conditions of polycrystalline cubic boron nitride (PcBN) sliding against bearing steel in vacuum environments, the effects of different loads on the tribological behaviors of PcBN and bearing steel AISI ...
Fan Yang, Zhengbo Wu, D. Meng, W. Qin, Ding-shun She   +4 more
semanticscholar   +1 more source

Influence of binder systems on sintering characteristics, microstructures, and mechanical properties of PcBN composites fabricated by SPS

Journal of Advanced Ceramics, 2022
Cubic boron nitride (cBN) with high hardness, thermal conductivity, wear resistance, and chemical inertness has become the most promising abrasive and machining material.
Shuna Chen, Hengzhong Fan, Yunfeng Su, Wensheng Li, Jicheng Li, Bing Yan, Junjie Song, Litian Hu, Yongsheng Zhang   +8 more
doaj   +1 more source

Feasibility of orbital friction stir welding on clad pipes of API X65 steel and Inconel 625

Scientific Reports, 2023
Orbital friction stir welding (FSW) has been applied to clad pipes, which is certainly of interest to the oil and gas industry. In this context, an FSW system capable of performing sound joints in one pass with full tool penetration was developed ...
C. V. Amavisca, L. Bergmann, C. R. de L. Lessa, J. G. Schroeder, F. D. Ramos, G. V. B. Lemos, A. Reguly, B. Klusemann   +7 more
doaj   +1 more source

Estimation of technological and thermobaric features of hardened steels machining: description of phenomena in the contact zone by cutting with blade tools from PCNB group BL

Технічна інженерія, 2022
So far, the development of modern tribology in the mechanical assembly industry requires the search for new tool materials, consideration of technological capabilities of cutting tools and determine the optimal characteristics and process conditions with
Ya.P. , P.P. , V.A.
doaj   +1 more source

Effect of nanostructuration on compressibility of cubic BN [PDF]

, 2012
Compressibility of high-purity nanostructured cBN has been studied under quasi-hydrostatic conditions at 300 K up to 35 GPa using diamond anvil cell and angle-dispersive synchrotron X-ray powder diffraction.
A. Dewaele, A. Latapie, F. Birch, F. Datchi, G. Garbarino, H. Couvy, H.K. Mao, J. Furthmuller, J. Zhao, J.A. Lupo, J.S. Zhang, K. Albe, K. Karch, K. Takemura, M. Mezouar, O. O. Kurakevych, O. Yeheskel, P. Munsch, P. Vinet, S.J. Zhao, V. L. Solozhenko, V.L. Solozhenko, V.L. Solozhenko, W.B. Holzapfel, Y. Le Godec, Y. Zhao   +25 more
core   +4 more sources

Tribological behaviors of polycrystalline cubic boron nitride sliding against silicon nitride in air and vacuum conditions

Ceramics International, 2021
In order to evaluate the friction and wear properties of polycrystalline cubic boron nitride (PCBN) based on the drilling tools cutting, the ball-on-disk tribological experiments of PCBN sliding against silicon nitride (Si3N4) were carried out in air and
Jinmeng Cui, D. Meng, Zhengbo Wu, W. Qin, Ding-shun She, Jia-jie Kang, Zhang Ran, Chengbiao Wang, W. Yue   +8 more
semanticscholar   +1 more source

The practice of using a cutting tool with PCNB group BL in the processing of hardened steels

Технічна інженерія, 2021
The industry is increasingly using the technological capabilities of metalworking using tools made of superhard materials, in particular polycrystalline cubic boron nitride (PCВN) group BL.
Ya.P. , P.P.
doaj   +1 more source

Solid-state metathesis reactions under pressure: A rapid route to crystalline gallium nitride [PDF]

, 1998
High pressure chemistry has traditionally involved applying pressure and increasing temperature until conditions become thermodynamically favorable for phase transitions or reactions to occur.
Heath, James R., Kaner, Richard B., Kim, Sang-Ho, Nicol, Malcolm, Rao, Lin, Rose, Garry A., Wallace, Charles H.   +6 more
core   +1 more source

Bioinspired PcBN/hBN fibrous monolithic ceramic: High-temperature crack resistance responses and self-lubricating performances

Journal of Advanced Ceramics, 2022
The high strength and toughness of natural materials are mainly determined by a combination of mechanisms operating at different length scales, which can be used as a strategy to reduce the intrinsic brittleness of ceramics. Inspired by the architectures
Shu-na Chen, Hengzhong Fan, Yunfeng Su, Jicheng Li, Junjie Song, Litian Hu, Yongsheng Zhang   +6 more
doaj   +1 more source