Surface Modification of Machine Parts Made of Iron–Carbon Alloys Operating under Conditions of Friction and Wear

2018 â—½  
Vol 39 (3) â—½  
pp. 227-231
Author(s):  
L. A. Timofeeva â—½  
S. S. Timofeev â—½  
A. Y. Dyomin â—½  
I. I. Fedchenko â—½  
D. G. Voskoboynikov
Keyword(s):  
Surface Modification â—½  
Friction And Wear â—½  
Machine Parts

Study on the friction characteristics of 304 steel with composite surface modification

2017 â—½  
Vol 69 (2) â—½  
pp. 248-258 â—½  
Author(s):  
Wengang Chen â—½  
Xueyuan Liu â—½  
Lili Zheng
Keyword(s):  
Surface Modification â—½  
Friction And Wear â—½  
Steel Surface â—½  
Testing Machine â—½  
Wear Testing â—½  
Tribological Characteristics â—½  
Textured Surface â—½  
Content Type â—½  
Good Basis â—½  
Modified Surface

Purpose This paper aims to clarify the friction properties of 304 steel surface modification. The surface modification includes laser texturing processing and nitriding treatment on 304 steel surface, and then the friction properties’ test was conducted on different friction directions and different upper test samples by using microfriction and wear testing machine. Design/methodology/approach The diameter and spacing of 100-, 150-, 200-, 300-μm pit array on the surface of 304 steel were calculated using a M-DPSS-50 semiconductor laser device. Then, the textured surface was nitriding-treated using a nitriding salt bath device. The chemical composition, surface morphology and surface microhardness of the composite-modified surface were measured by X-ray diffraction and by using an optical microscope and a microhardness tester. The tribological characteristics of the composite-modified surface were tested by MRTR microcomputer-controlled multifunctional friction and wear testing machine. Findings The result showed that a rule pit texture surface was obtained by the texture processing. The microhardness of nitriding treatment surface reached 574.27HV0.1, which significantly higher than 222.58HV0.1 of 304 steel. The composite-modified surface has excellent anti-friction and wear resistance properties when the upper specimen was GCr15 steel and ZrO2, respectively. The composite-modified surface has excellent anti-friction and anti-wear properties after long time friction under different angles. However, the friction coefficient and wear morphology of the friction pairs are not affected by the friction angle. Research limitations/implications Because of the chosen research approach, the research results may lack generalizability. Therefore, researchers are encouraged to test the proposed propositions further. Practical implications The paper conducted a systematic study of the tribological characteristics of 304 steel composite modification surface and provided a good basis for the extensive application of 304 steel. Social implications The study provides a good basis for the extensive application of 304 steel. Originality/value This paper fulfils an identified need to study the extensive application of 304 steel.

Microstructure and Friction Behavior of AISI 52100 and D2 Steels Subjected to Ultrasonic Nanocrystalline Surface Modification (UNSM) Technique at a High Temperature

2016 â—½  
Vol 879 â—½  
pp. 164-168
Author(s):  
Auezhan Amanov â—½  
Jun Hyong Kim â—½  
Young Sik Pyun
Keyword(s):  
Surface Modification â—½  
High Temperature â—½  
Friction And Wear â—½  
Wear Behavior â—½  
Bearing Steel â—½  
Friction Behavior â—½  
Friction And Wear Behavior â—½  
Aisi 52100 â—½  
Before And After â—½  
Dry Conditions

In this study, two different AISI 52100 bearing and D2 tool steels were subjected to ultrasonic nanocrystalline surface modification (UNSM) technique at ambient and high temperature of 500 °C. The objective of this study is to characterize the microstructure and to investigate the effectiveness of UNSM technique on the friction and wear behavior of those steels. The friction and wear behavior of the specimens against AISI52100 bearing steel ball with a diameter of 10 mm was carried out using a micro-tribo tester under dry conditions. The hardness with respect to depth from the top surface was measured using a microhardness. The change in the microstructure of the specimens before and after UNSM treatment was characterized by scanning electron microscopy (SEM). The findings from this preliminary study are expected to be implemented to the bearings and tools to increase the efficiency and performance of the components.

scholarly journals Theoretical justification of the influence of change of dilaton and compression bonds of atoms of materials of machine parts on their tribological effect

2021 â—½  
Vol 100 (2) â—½  
pp. 71-78
Author(s):  
V. Aulin â—½  
â—½  
S. Lysenko â—½  
A. Hrinkiv â—½  
О. Derkach â—½  
...  
Keyword(s):  
Composite Materials â—½  
Friction And Wear â—½  
Composite Coatings â—½  
Point Of View â—½  
Solid State Physics â—½  
Surface Layers â—½  
Theoretical Justification â—½  
Friction Zone â—½  
Machine Parts â—½  
Bulk Content

The course of friction and wear processes in the surface layers of conjugations of machine parts is clarified on the basis of the idea of dilaton and compression bonds of atoms in the materials of parts. Dilaton-compression connections are random in nature, and therefore in this work the theory of destruction of parts by S.M. Zhurkov, thermodynamic and quantum physical approaches. The entropy at the macro-, meso- and microscopic levels and the local regions of the materials of conjugation of the parts subject to friction loading are considered. In the diagram of the state of atomic-molecular bonds the dependence curve Fi(ri) or Ti(ri) is considered and the analysis of transformations of bonds according to the specified diagram is carried out. From the point of view of solid state physics and tribophysics, the manifestation, evolution and consequences of the influence on the characteristics and properties of the friction zone of dilaton and compression bonds of material atoms are considered. Composite materials (composite coatings) are substantiated in more detail. This takes into account the assessment of the concept of material stresses in the friction zone, the ability to relax it, as well as the presence of the SD effect. The fracture process is associated with the modulus of elasticity of the components of the composite material and the bulk content of the filler. An appropriate condition is proposed, which determines the tribological efficiency of composite materials and coatings.

The effect of surface modification on the friction and wear behavior of carbon nanofiber-filled PTFE composites

Wear â—½  
2008 â—½  
Vol 264 (11-12) â—½  
pp. 934-939 â—½  
Author(s):  
Yijun Shi â—½  
Xin Feng â—½  
Huaiyuan Wang â—½  
Xiaohua Lu
Keyword(s):  
Surface Modification â—½  
Friction And Wear â—½  
Carbon Nanofiber â—½  
Wear Behavior â—½  
Friction And Wear Behavior â—½  
Ptfe Composites â—½  
Effect Of Surface

Synergy Effect of Ultrasonic Nanocrystalline Surface Modification and Laser Surface Texturing on Friction and Wear Behavior of Graphite Cast Iron

2016 â—½  
Vol 60 (2) â—½  
pp. 226-237 â—½  
Author(s):  
Khagendra Tripathi â—½  
Gobinda Gyawali â—½  
Auezhan Amanov â—½  
Soo W. Lee
Keyword(s):  
Surface Modification â—½  
Cast Iron â—½  
Friction And Wear â—½  
Wear Behavior â—½  
Surface Texturing â—½  
Laser Surface â—½  
Laser Surface Texturing â—½  
Synergy Effect â—½  
Friction And Wear Behavior â—½  
Graphite Cast Iron

Friction and Wear Characteristics of SUS304 and SUS630 after Ultrasonic Nanocrystal Surface Modification

2011 â—½  
Vol 275 â—½  
pp. 174-177 â—½  
Author(s):  
Young Shik Pyoun â—½  
Jeong Hyeon Park â—½  
Chang Min Suh â—½  
Auezhan Amanov â—½  
Jun Hyong Kim
Keyword(s):  
Stainless Steel â—½  
Surface Modification â—½  
Friction And Wear â—½  
Wear Properties â—½  
Wear Characteristics â—½  
The Coefficient Of Friction â—½  
Micro Dimples â—½  
Pin On Disk â—½  
Lubrication Conditions â—½  
Friction And Wear Characteristics

Owing to the superior properties of stainless steel it is pertinent to make use of it in various applications of automotive, aerospace, nuclear, chemical and cryogenic products. This paper describes a study of friction characteristics of SUS304 and SUS630 stainless steel disk specimens against silicon nitride Si3N4 ball in dry, grease-, and oil-lubricated conditions and wear characteristics in dry condition in sliding contact. The ultrasonic nanocrystal surface modification (UNSM) technology was applied to those disk specimens and its friction and wear properties were compared with polished one. The experiment was conducted with a pin-on-disk tribo tester using ball-on-disk contact geometry at room temperature. The experiment results show that in dry, greased- and oil-lubrication conditions the coefficient of friction of UNSM-treated specimens was lower and constant than polished specimens and in dry condition the wear rate was also smaller than polished one. Micro dimples made by UNSM treatment contribute those effects.

Surface Modification of MoS2 Nanosheets as Effective Lubricant Additives for Reducing Friction and Wear in Poly-α-olefin

2018 â—½  
Vol 57 (23) â—½  
pp. 8105-8114 â—½  
Author(s):  
Xinhu Wu â—½  
Kuiliang Gong â—½  
Gaiqing Zhao â—½  
Wenjing Lou â—½  
Xiaobo Wang â—½  
...  
Keyword(s):  
Surface Modification â—½  
Friction And Wear â—½  
Lubricant Additives â—½  
Mos2 Nanosheets â—½  
Effective Lubricant

scholarly journals Probing the potential of structured and surface functionalized tools for dry cold forging of aluminium

2018 â—½  
Vol 190 â—½  
pp. 14010
Author(s):  
Marco Teller â—½  
Ingo Ross â—½  
Stephan Prünte â—½  
André Temmler â—½  
Moritz Küpper â—½  
...  
Keyword(s):  
Surface Modification â—½  
Tool Steel â—½  
Surface Functionalization â—½  
Friction And Wear â—½  
Steel Surface â—½  
Cold Forging â—½  
Wear Behaviour â—½  
Main Task â—½  
Cold Forming â—½  
Structured Surfaces

In order to reduce friction and wear in cold forging of aluminium and its alloys a tremendous amount of lubricants is used. The main task of the liquid lubricants is the separation of tool and workpiece surfaces to avoid adhesion and abrasion. From an ecological and economical point of view, a reduction of the consumption of lubricants is meaningful. Novel surface modification techniques have been investigated to enable dry cold forming. In previous work, a reduced wear by adhesion of aluminium to an AISI H11 ESR tool steel surface was detected for a combination of laser polishing and a subsequent surface functionalization. Here, structured surfaces combined with surface functionalization are investigated regarding their wear behaviour. Therefore, different structures are realized on AISI H11 ESR tool steel surfaces by laser structuring. These structures are aligned parallel and perpendicular to the material flow direction. Furthermore, different structure depths are generated. It is evident that the laser induced surface melting causes both, a reduced micro roughness as well as a homogenized elementary distribution. Moreover, the surfaces are functionalized with an octadecylphosphonic acid selfassembled monolayer (C18PA-SAM). The SAM’s distal alkyl termini functionalize the tool steel surface und thus only weak van-der-Waals interactions are present in the aluminium-tool steel interface rendering an interaction, which is expected to be similar to the interaction in conventionally lubricated aluminium forming. Finally, the surfaces are appraised regarding their wear behaviour in a compression-torsion-wear tribometer. The different experimental results document the potential of the here investigated combined tool surface modification. Although, the performance of a lubricated process is not completely reached a reduction in friction and wear can be achieved compared to unmodified tools.

809 Surface Modification of PPS by Ion Implantation Method : Surface Properties and Friction and Wear Properties

2001 â—½  
Vol 2001.76 (0) â—½  
pp. _8-17_-_8-18_
Author(s):  
Hidetaka SATO â—½  
Kazuhiko SAKAGUCHI â—½  
Takashi MATSUOKA
Keyword(s):  
Surface Modification â—½  
Ion Implantation â—½  
Surface Properties â—½  
Friction And Wear â—½  
Wear Properties â—½  
Friction And Wear Properties â—½  
Implantation Method
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