An Investigation in Wear and Friction of Oil Seal for Rubbing by Flame-Sprayed Alloy and Ceramic on Lower Carbon Steel

2021 ◽  
Vol 319 ◽  
pp. 52-57
Author(s):  
Chao Ping Huang ◽  
Sheng Yen Hu ◽  
Tung Ying Li ◽  
Yuan Kang
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Ceramic Powder ◽  
Surface Friction ◽  
Bearing Steel ◽  
Coating Materials ◽  
Aisi 52100 ◽  
Wear And Friction ◽  
Sprayed Coating ◽  
Lower Carbon

In this paper, the effect of sprayed coating on the surface of carbon steel on friction and abrasion properties of oil seals which are rubbed by various anti-wear coating materials on is investigated experimentally, and compared with the uncoated AISI 52100 bearing steel. We used the block vs ring tester to explore the friction coefficient of hard surface friction of 5 commonly used rubber seal to 4 different coating layers of bearing steel under oil/no oil conditions. Four coating materials are used, which are Ni-Cr-B-Si alloy, Ni-Cr-WC alloy, ceramics, and ceramics. Five varieties of the oil seal material named HNBR, NBR, FKM, ACM, and SIL are subjected to wear tests for the measurements of friction and abrasion. The experimental results show that HNBR has better wear resistance and less friction, ceramics have higher friction and wear resistance than other coatings due to higher hardness. In terms of oil seal and sprayed coating, Ni-Cr-B-Si alloy and ceramic powder are more suitable for surface wear resistance, because of its hardness and wear resistance and the degree of damage to the oil seal are more excellent. Generally, the greater the wear resistance of the oil seal material, the greater its friction with the coating.

Analysis of Stress Distribution for Powder Compression Molding by Finite Element Method

2019 ◽  
Vol 891 ◽  
pp. 269-274 ◽  
Author(s):  
Prakorb Chartpuk ◽  
Chaiwat Chaimahapuk
Keyword(s):  
Stress Distribution ◽  
Natural Frequency ◽  
Ceramic Powder ◽  
Bearing Steel ◽  
Outer Diameter ◽  
Maximum Compression ◽  
Aisi 52100 ◽  
Steel Aisi ◽  
The Difference ◽  
Powder Compression

The ultrasonic mold was designed for the ceramic powder compression. CAD and CAE were used in the design to analyze the mold strength and its natural frequency. The study of stress distribution and compression in upper and lower punch, mold body and waveguide comparison of stresses was analyzed by FEA experiments under maximum compression at 50,000 N to validate the results of both methods and the mold natural frequency. The difference between FEA and experimental analysis was 3-7%, acceptable. The redesign results in a cylindrical mold body with the outer diameter of 80 mm, the height of 100 mm, and the upper punch of 125 mm in length. The six sides are 26 mm of the high waveguide with 100 mm height. The internal and external diameters are 80 and 110 mm, respectively. The mold has been redesigned and can support the maximum compression force of 1,500 kN. with the bearing steel, AISI 52100, obtainable hardness 65 HRC, the stress concentration occurs at the neck of the upper punch using the ultrasonic at 12.00 to 12.45 kHz.

Effect of Deep Cryogenic Treatment on Wear Resistance of AISI 52100 Bearing Steel

2014 ◽  
Vol 67 (6) ◽  
pp. 909-917 ◽  
Author(s):  
Ibrahim Gunes ◽  
Adem Cicek ◽  
Kubilay Aslantas ◽  
Fuat Kara
Keyword(s):  
Wear Resistance ◽  
Cryogenic Treatment ◽  
Bearing Steel ◽  
Deep Cryogenic Treatment ◽  
Aisi 52100

scholarly journals Microstructure and Wear Behavior of TiC/AISI 1020 Metal Matrix Composites Produced by Liquid Pressing Infiltration

2021 ◽  
Vol 11 (20) ◽  
pp. 9682
Author(s):  
Heejeong Kim ◽  
Jungyu Park ◽  
Sangmin Shin ◽  
Seungchan Cho ◽  
Junghwan Kim ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Metal Matrix Composite ◽  
Matrix Composite ◽  
Metal Matrix ◽  
Microstructural Analysis ◽  
Bearing Steel ◽  
Steel Matrix ◽  
Heat Treated ◽  
Aisi 52100

A metal matrix composite was developed through a unique liquid pressing infiltration process to study the wear mechanism of a TiC reinforced AISI 1020 steel matrix. The microstructure, hardness, and wear behaviors of the TiC/AISI 1020 composite were compared with commercial AISI 52100 bearing steel. Microstructural analysis showed that there were no defects, such as pores or agglomeration of reinforcement particles, and about 60% of the volume of TiC was uniformly dispersed. In the case of the AISI 52100 alloy, the hardness was 62.42 HRC, which was similar to the 62.84 HRC value of the as-cast TiC/AISI 1020 composite. After the quenching heat treatment, the Rockwell hardness of the composite increased to 76.64 HRC, which was attributed to the martensitic transformation of the AISI 1020 matrix. As a result of the pin-on-disc wear test with high contact pressure, the wear width of AISI 52100 was 2937 μm, which was approximately 4.3 times wider than that of the heat-treated metal matrix composite (682 μm). The wear depths of AISI 52100 and the heat-treated composite were 2.6 μm and 0.5 μm, respectively, indicating that TiC/AISI 1020 exhibited excellent wear resistance compared with bearing steel. Improved wear resistance of the TiC/AISI 1020 composite originates from uniformly distributed TiC, with an increase in the hardness due to the heat treatment.

scholarly journals Enhancement of Medium-Carbon Steel Corrosion and Wear Resistance by Plasma Electrolytic Nitriding and Polishing

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1599
Author(s):  
Andrey Apelfeld ◽  
Anatoly Borisov ◽  
Ilya Dyakov ◽  
Sergey Grigoriev ◽  
Boris Krit ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Steel Corrosion ◽  
Corrosion Current ◽  
Bearing Steel ◽  
Medium Carbon Steel ◽  
Surface Phase ◽  
Technological Parameters ◽  
Medium Carbon ◽  
Plasma Electrolytic

The influence of technological parameters of plasma electrolytic nitriding and polishing on the wear resistance and corrosion resistance of medium-carbon steel is considered. The morphology and roughness of the surface, phase composition and microhardness of the modified layer have been investigated. Wear resistance was studied under dry friction conditions with bearing steel as counter-body. It was found that plasma electrolytic polishing removes the loose part of the oxide layer and provides a two-fold decrease in surface roughness compared with untreated steel, and 2.8 times compared with the nitrided one. Combined processing at optimal technological parameters leads to an increase in microhardness up to 1130 HV, an increase in wear resistance by 70 times, and a decrease in the corrosion current density by almost 3 times in comparison with untreated steel.

Study on Wear and Friction Resistance of CrTiAlMoN Coatings Deposited by Magnetron Sputtering

2011 ◽  
Vol 413 ◽  
pp. 295-299
Author(s):  
Tao Wang ◽  
Guo Jun Zhang ◽  
Bai Ling Jiang
Keyword(s):  
Carbon Steel ◽  
Magnetron Sputtering ◽  
Adhesive Wear ◽  
High Hardness ◽  
Bearing Steel ◽  
Friction Resistance ◽  
Wear And Friction ◽  
Pin On Disc ◽  
Friction Performance ◽  
Steel Substrates

The present research aims to synthesize a nanoscale multilayer CrTiAlMoN hard coating for the modification of wear and friction performance, as compare to CrTiAlN coatings. CrTiAlMoN coatings were deposited on 1045 carbon steel substrates by magnetron sputtering at different Mo target current. The wear and friction resistance were characterized by pin-on-disc test. When a WC-Co ball was used as the counterpart, the coefficients of friction of CrTiAlMoN coatings were found to decrease with the increase of Mo target current, with the lowest value (0.34) being only one half that of CrTiAlN coating (0.76). The combination of high hardness above 36GPa and low coefficients of friction reduces the specific wear rate of the CrTiAlMoN coatings to only 10% of CrTiAlN coatings. When tested against a bearing steel ball, results demonstrate that the effect of Mo on reducing friction of the CrTiAlMoN coatings is not significant and even negative due to adhesive wear.

Wear and Friction of Diamondlike-Carbon Coated and Uncoated Steel Roller Bearings Under High Contact Pressure Oil Lubricated Rolling/Sliding Conditions

2014 ◽  
Vol 136 (2) ◽  
Author(s):  
P. A. Dearnley ◽  
A. M. Elwafi ◽  
R. J. Chittenden ◽  
D. C. Barton
Keyword(s):  
Bearing Steel ◽  
Rolling Contact ◽  
Friction Behavior ◽  
Coating Materials ◽  
Research Attention ◽  
Dlc Coatings ◽  
Roller Bearings ◽  
Coated Materials ◽  
Wear And Friction ◽  
Diamondlike Carbon

Diamondlike-carbon (DLC) coatings have received a lot of research attention by physicists and engineers, especially in the past 25 years. Attempts to use such materials in tribological applications have achieved variable success. The rationale for this work was to investigate the wear durability of three types of DLC coatings applied to hardened and tempered bearing steel and subject them to realistic high pressure cyclic loading under oil lubricated conditions for long duration. A thrust bearing design was deployed for this purpose. The wear and friction behavior of the DLC coated materials relative to uncoated materials was compared when using base (additive free) oils and typical autoengine formulated oils. The type of oil used made no difference to the dynamic friction and oil temperature for all the material and oil combinations used. Durability of the coated and uncoated roller bearings was determined by the type of material. For the uncoated bearings, life was limited after very many test cycles (approaching a billion) via classical rolling contact fatigue pitting. For all the DLC coated rollers life was governed by wear of their coatings. In the case of the tungsten doped DLCs (a-C:H:W), these were worn progressively and uniformly via microabrasion, whereas the nondoped ta-C and a-C DLC coatings were principally worn via delamination and tearing. The latter effect was relatively rapid and was considered to be initiated by blistering of the coating, a process that was probably driven by the high elastic energy/internal stress within the nondoped coating materials. The durability to delamination and tearing of the ta-C coatings was slightly lowered in formulated oil compared to tests made in base oil. Overall, for the test conditions used here, there was no apparent benefit in using DLC coatings.

CLIMAX 6Mn-1Mo Alloy

Alloy Digest ◽  
1976 ◽  
Vol 25 (4) ◽  
Keyword(s):  
Wear Resistance ◽  
Manganese Content ◽  
Heat Treating ◽  
Manganese Steel ◽  
Hadfield Steel ◽  
Austenitic Manganese Steel ◽  
Austenitic Manganese ◽  
The Many ◽  
Cast Condition ◽  
Lower Carbon

Abstract Climax 6Mn-1Mo alloy is a lean austenitic manganese steel which develops a structure similar to that of the well-known Hadfield manganese steel after heat treatment. A lower carbon version of this alloy has been developed to give satisfactory performance in the as-cast condition. Largely because of lower manganese content, these alloys have better abrasion resistance but lower toughness and ductility than Hadfield steel. Both alloys are designed for the many applications where a combination of good wear resistance and moderate toughness is desirable. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on wear resistance as well as casting, heat treating, machining, joining, and surface treatment. Filing Code: SA-322. Producer or source: Climax Molybdenum Company, A Division of Amax Inc..

A study on the initiation processes of white etching cracks (WECs) in AISI 52100 bearing steel

Wear ◽  
2021 ◽  
pp. 203864
Author(s):  
J. Spille ◽  
J. Wranik ◽  
S. Barteldes ◽  
J. Mayer ◽  
A. Schwedt ◽  
...  
Keyword(s):  
Bearing Steel ◽  
White Etching Cracks ◽  
Aisi 52100

Laser Assisted High Entropy Alloy Coating on Low Carbon Steel

2019 ◽  
Vol 813 ◽  
pp. 159-164
Author(s):  
Carlos Alberto Souto ◽  
Gustavo Faria Melo da Silva ◽  
Laura Angelica Ardila Rodriguez ◽  
Aline C. de Oliveira ◽  
Kátia Regina Cardoso
Keyword(s):  
Wear Resistance ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
High Hardness ◽  
Alloy Coating ◽  
High Entropy Alloy ◽  
Nominal Composition ◽  
Low Carbon ◽  
High Entropy ◽  
Scan Speed

Coatings with high entropy alloys of the AlCoCrFeNiV system were obtained by selective laser melting on low carbon steel substrates. The effect of the variation of the Fe and V contents as well as the laser processing parameters in the development of the coating were evaluated. The coatings were obtained from the simple powder mixtures of the high purity elemental components in a planetary ball mill. The coatings were obtained by using CO2 laser with a power of 100 W, diameter of 0.16 mm, and scan speed varying from 3 to 12 mm/s. Phase constituents, microstructure and hardness were investigated by XRD, SEM, and microhardness tester, respectively. Wear resistance measurements were carried out by the micro-abrasion method using ball-cratering tests. The coatings presented good adhesion to the substrate and high hardness, of the order of 480 to 650 HV. Most homogeneous coating with nominal composition was obtained by using the higher scan speed, 12 mm/s. Vanadium addition increased hardness and gave rise to a high entropy alloy coating composed by BCC solid solutions. Ball cratering tests conducted on HEA layer showing improvement of material wear resistance, when compared to base substrate, decreasing up to 88% its wear rate, from 1.91x10-6 mm3/Nmm to 0.23x10-6 mm3/Nmm.

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