New Copper-Based Composites for Heavy-Loaded Friction Units

被引:0
作者
T. A. Roik
O. A. Gavrysh
Iu. Iu. Vitsiuk
O. I. Khmiliarchuk
机构
[1] National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”,
来源
Powder Metallurgy and Metal Ceramics | 2018年 / 56卷
关键词
bearing bushing; copper; composite material; solid lubricant; technology; friction films; wear resistance; chassis;
D O I
暂无
中图分类号
学科分类号
摘要
Constraints in the use of bushings produced of the new copper-based bearing composite material alloyed with nickel and molybdenum and containing the additives of CaF2 (DN5M3KF9) solid lubricant are analyzed. The structure and tribotechnical properties are examined during reverse friction under heavy load (temperature 400–600°C and load up to 6.0 MPa in air). The study focuses on the distribution of CaF2 in a composite with Cu–Ni–Mo matrix, the role of calcium fluoride in the self-lubrication of the material, and the distribution of chemical elements of friction pair and CaF2 in the friction zone under extreme operating conditions. It is shown that the solid lubricant is evenly distributed along the contact surfaces as it envelops the entire friction zone during reverse friction under heavy load. It is established that tribofilms formed in the presence of CaF2 solid lubricant provide high wear resistance. Also, the new material possesses high thermal conductivity. These properties extend the application of new cooper-based composite bearing bushings in a chassis.
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页码:516 / 522
页数:6
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共 38 条
[31]   Effect of factors governing dry friction on structure formation for the tribological synthesis zone in composites based on copper [J].
Kostornov, A. G. ;
Simeonova, Yu. M. ;
Fushchich, O. I. ;
Chevychelova, T. M. ;
Sotirov, G. E. ;
Kostenko, A. D. .
POWDER METALLURGY AND METAL CERAMICS, 2006, 45 (3-4) :118-123
[32]   Effect of factors governing dry friction on structure formation for the tribological synthesis zone in composites based on copper [J].
A. G. Kostornov ;
Yu. M. Simeonova ;
O. I. Fushchich ;
T. M. Chevychelova ;
G. E. Sotirov ;
A. D. Kostenko .
Powder Metallurgy and Metal Ceramics, 2006, 45 :118-123
[33]   INFLUENCE OF MOLYBDENUM DISULFIDE PARTICLE SIZE ON FRICTION AND WEAR CHARACTERISTICS OF NON-ASBESTOS-BASED COPPER-FREE BRAKE FRICTION COMPOSITES [J].
Vijay, R. ;
Singaravelu, D. Lenin ;
Filip, Peter .
SURFACE REVIEW AND LETTERS, 2020, 27 (01)
[34]   Effect of Composition on Friction Co-efficient of Copper based Cu-Sn-MoS2 Composites [J].
Kumar, P. Senthil ;
Manisekar, K. .
INTERNATIONAL JOURNAL OF ENGINEERING, 2015, 28 (01) :115-120
[35]   Effect of ceramic reinforcement particle on mechanical and tribological properties of sintered copper-based brake composite friction materials using pin-on-disc tribometer [J].
Petchiappan, Raja ;
Ramkumar, P. .
JURNAL TRIBOLOGI, 2023, 39 :117-133
[36]   The effect of copper concentration on the wear resistance of composites based on recycled ShKh15 steel during friction with current collection [J].
Fadin, V. V. ;
Aleutdinova, M. I. .
JOURNAL OF FRICTION AND WEAR, 2009, 30 (06) :449-454
[37]   The effect of copper concentration on the wear resistance of composites based on recycled ShKh15 steel during friction with current collection [J].
V. V. Fadin ;
M. I. Aleutdinova .
Journal of Friction and Wear, 2009, 30 :449-454
[38]   Synthesis and structural characterization of two new 2D isophthalate-bridged copper(II) polymers based on tricopper units [J].
Zhang, Q ;
Ye, BH ;
Ren, CX ;
Chen, XM .
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2003, 629 (11) :2053-2057