EFFECT OF DIAMOND INTERLAYER ON THE TRIBOLOGICAL PROPERTIES OF TiAlN FILM SLIDING AGAINST CARBON STEEL

2018 ◽  
Vol 25 (06) ◽  
pp. 1950001 ◽  
Author(s):  
X. L. LEI ◽  
Y. HE ◽  
F. H. SUN
Keyword(s):  
Carbon Steel ◽  
Tribological Properties ◽  
Medium Carbon Steel ◽  
Hard Coatings ◽  
Bilayer Film ◽  
Medium Carbon ◽  
Wear Rates ◽  
Mild Wear ◽  
Lubricating Property ◽  
Diamond Grain

In this study, the effect of diamond interlayer on the tribological properties of titanium aluminum nitride (TiAlN) film sliding against medium carbon steel is investigated in dry rotary friction tests, by evaluating the coefficients of friction (COFs), wear rates, worn surfaces and element transitions of the contacted surfaces in the cemented carbide (WC-Co)-steel, TiAlN-steel, microcrystalline diamond (MCD)-steel, TiAlN/MCD-steel, micro- and nano-crystalline diamond (MNCD)-steel and TiAlN/MNCD-steel contacting pairs. It is found that compared with the TiAlN monolayer, the TiAlN/MCD bilayer film shows 57% higher COF, while the COF of TiAlN/MNCD multilayer inversely drops as much as 54%, due to the distinguished surface diamond grain morphologies of the MCD and MNCD interlayers as well as the copied effect of the TiAlN layer with relatively small thickness. Meanwhile, the diamond interlayer can provide robust load support for the top TiAlN layer, induce the wear mechanism transform from the abrasive wear to adhesive wear, and result in the mild wear of TiAlN/MCD and TiAlN/MNCD multilayers compared to the TiAlN monolayer. Moreover, the softer TiAlN top layer on MCD and MNCD interlayers can effectively improve the storage capacity of element oxygen and worn steel ball debris as well as accelerating the surface chemical reactions to form a smoother continuous ionic metal oxides tribofilm in the contacted zones due to its good self-lubricating property. Among all the hard coatings discussed when sliding against medium carbon steel, the TiAlN/MNCD coating shows the lowest COF and mild wear, due to the robust load support capacity of the beneath MNCD layer as well as the good self-lubricated and tribofilm formation capacity of the top TiAlN layer, which shows broad application potential in carbon steel machining.

ANTIWEAR PROPERTIES OF MEDIUM-CARBON STEEL WITH Cr/CrN TYPE HYBRID COATING PRODUCED BY THE PVD METHOD

Tribologia ◽  
2018 ◽  
Vol 282 (6) ◽  
pp. 63-69 ◽  
Author(s):  
Ewa KASPRZYCKA
Keyword(s):  
Carbon Steel ◽  
Tribological Properties ◽  
Scratch Test ◽  
Medium Carbon Steel ◽  
Hybrid Coating ◽  
Hybrid Coatings ◽  
Chromium Nitride ◽  
Linear Wear ◽  
Medium Carbon ◽  
Antiwear Properties

The paper presents the results of examinations of the structure, and mechanical and antiwear properties of hybrid coatings of the Cr/CrN type, consisting of chromium and chromium nitride, formed on the surface of the C45 medium-carbon steel by the Arc-PVD method. Investigations of the morphology and microstructure of hybrid coatings, as well as of their phase composition were carried out. The studies on mechanical properties included tests on hardness and Young’s modulus using the nanoindentation method. Tests on adhesion were conducted using the scratch-test. Tribological properties (linear wear) of the coatings were performed by means of taper-three rolls test. The investigations showed that the linear wear of the C45 steel samples with the Cr/CrN hybrid coatings is 7–9 times smaller than that of hardened steel samples without any coatings. This indicates the excellent tribological properties of the C45 medium-carbon steel with the Cr/CrN type hybrid coatings deposited by the Arc-PVD method.

scholarly journals Behavior of Wear Debris and Its Action Mechanism on the Tribological Properties of Medium-Carbon Steel with Magnetic Field

Materials ◽  
2018 ◽  
Vol 12 (1) ◽  
pp. 45 ◽  
Author(s):  
Hongxin Shi ◽  
Sanming Du ◽  
Chao Sun ◽  
Chenfei Song ◽  
Zhenghai Yang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Carbon Steel ◽  
Tribological Properties ◽  
Wear Debris ◽  
Medium Carbon Steel ◽  
Friction Process ◽  
Medium Carbon ◽  
Debris Removal ◽  
Wear Mode ◽  
Worn Surface

Friction tests were conducted on self-matched pairs of medium-carbon steel using a pin-disk tribometer in an ambient laboratory environment with and without wear-debris removal, in order to clarify the influence of wear debris on the tribological properties of steels that were exposed to magnetic fields. The wear debris and worn surface were observed and analyzed. In the case that the wear debris was removed, the vast majority of wear debris was large, scarce oxidation, and no agglomeration, the grooves of various shapes and discontinuities, and no oxide layer were formed on the worn surface, severe wear occurred throughout the friction process. When the wear debris was not removed, the wear debris became fine, agglomeration and oxidation, a debris layer was formed on the worn surface, and the wear mode transitioned from severe to mild occurred during friction process. The results reveal that the re-entering of wear debris into the friction area is essential for the formation of a wear-debris layer and that an anti-wear effect can be achieved via the wear-debris layer formed on the worn surface during the friction process with a magnetic field.

TRIBOLOGICAL PROPERTIES OF MEDIUM-CARBON STEEL AFTER NITRIDING COMBINED WITH SUBSEQUENT OXIDATION AND IMPREGNATION

Tribologia ◽  
2019 ◽  
Vol 283 (1) ◽  
pp. 13-18 ◽  
Author(s):  
Ewa KASPRZYCKA ◽  
Bogdan BOGDAŃSKI ◽  
Piotr DĄBROWSKI
Keyword(s):  
Carbon Steel ◽  
Tribological Properties ◽  
Subsequent Treatment ◽  
Medium Carbon Steel ◽  
Chloride Ions ◽  
Linear Wear ◽  
Combined Processes ◽  
Corrosion Properties ◽  
Medium Carbon ◽  
Subsequent Oxidation

The paper presents the results of examinations of tribological and corrosion properties of the layers produced on a C45 medium-carbon steel surface in the gas nitriding process combined with subsequent treatment – oxidation and impregnation of corrosion inhibitor. Investigations of the microstructure of these layers and their phase composition were carried out. Hardness of the layers was measured by Vickers method. Tribological properties (linear wear) of the layers were performed by means of the three-cylinder-cone method. Resistance to corrosion was determined by electrochemical methods. The investigations showed that the linear wear of the C45 steel samples with the layers produced in the combined processes of nitriding with subsequent oxidation and impregnation was smaller than that of steel samples without layers. Moreover, the corrosion resistance of these layers in aggressive solutions containing chloride ions was very good.

NTI-WEAR PROPERTIES OF MEDIUM CARBON STEEL AFTER CARBURIZING WITH SUBSEQUENT DIFFUSION CHROMIZING AND PVD TREATMENT

Tribologia ◽  
2019 ◽  
Vol 288 (6) ◽  
pp. 25-30
Author(s):  
Ewa Kasprzycka ◽  
Bogdan Bogdański
Keyword(s):  
Carbon Steel ◽  
Tribological Properties ◽  
Medium Carbon Steel ◽  
Linear Wear ◽  
Wear Properties ◽  
Medium Carbon ◽  
Diffusion Chromizing ◽  
Hybrid Treatment ◽  
Hybrid Layers ◽  
Subsequent Diffusion

The paper discusses the results of research on the structure and tribological properties of hybrid layers produced on the surface of medium-carbon steel in hybrid treatment, combining gas carburizing process with the next treatment, i.e. diffusion chromizing and PVD treatment. A comparison was made of the structure and tribological properties of the layers obtained as a result of hybrid treatment with the layers produced in a single diffusion chromizing process. The studies of the layers concerned their structure, chemical composition, thickness, and hardness. Linear wear of the layers were performed by means of three-cylinder-cone method. It has been shown that the linear wear of samples with hybrid layers, produced on medium carbon steel, is less than 50% of samples with single carbide layers. This indicates very good anti-wear properties of hybrid layers.

INFLUENCE THE QUENCHING AND TEMPERING ON THE MICROSTRUCTURE, MECHANICAL PROPERTIES AND SURFACE ROUGHNESS, OF MEDIUM CARBON STEEL

2018 ◽  
Vol 18 (1) ◽  
pp. 125-135
Author(s):  
Sattar H A Alfatlawi
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Surface Roughness ◽  
Carbon Steel ◽  
Cold Water ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Heating And Cooling ◽  
Treatment Processes ◽  
Quenching And Tempering

One of ways to improve properties of materials without changing the product shape toobtain the desired engineering applications is heating and cooling under effect of controlledsequence of heat treatment. The main aim of this study was to investigate the effect ofheating and cooling on the surface roughness, microstructure and some selected propertiessuch as the hardness and impact strength of Medium Carbon Steel which treated at differenttypes of heat treatment processes. Heat treatment achieved in this work was respectively,heating, quenching and tempering. The specimens were heated to 850°C and left for 45minutes inside the furnace as a holding time at that temperature, then quenching process wasperformed in four types of quenching media (still air, cold water (2°C), oil and polymersolution), respectively. Thereafter, the samples were tempered at 200°C, 400°C, and 600°Cwith one hour as a soaking time for each temperature, then were all cooled by still air. Whenthe heat treatment process was completed, the surface roughness, hardness, impact strengthand microstructure tests were performed. The results showed a change and clearimprovement of surface roughness, mechanical properties and microstructure afterquenching was achieved, as well as the change that took place due to the increasingtoughness and ductility by reducing of brittleness of samples.

AISI 1025

Alloy Digest ◽  
1972 ◽  
Vol 21 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Physical Properties ◽  
Heat Treating ◽  
General Purpose ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Steel Mills ◽  
Cold Worked

Abstract AISI 1025 is a low-to-medium-carbon steel used in the hot-worked, cold-worked, normalized or water-quenched-and-tempered condition for general-purpose construction and engineering. It is also used for case-hardened components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-47. Producer or source: Carbon and alloy steel mills.

AISI 1551

Alloy Digest ◽  
1980 ◽  
Vol 29 (2) ◽  
Keyword(s):  
Carbon Steel ◽  
Heat Treating ◽  
Medium Carbon Steel ◽  
High Manganese ◽  
Hand Tools ◽  
Medium Carbon ◽  
Steel Mills ◽  
Cold Worked ◽  
Hot Rolled ◽  
Good Workability

Abstract AISI 1551 is a medium-carbon steel containing relatively high manganese (0.85-1.15%) for a carbon steel. It can be used in the hot-rolled, annealed, normalized, cold-worked or liquid-quenched-and-tempered condition for numerous applications. It has a combination of good machinability and good workability. Its many uses include hand tools, machinery parts, springs and agricultural machinery. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-80. Producer or source: Carbon steel mills.

SAE 1037

Alloy Digest ◽  
1979 ◽  
Vol 28 (4) ◽  
Keyword(s):  
Fracture Toughness ◽  
Carbon Steel ◽  
Low Cost ◽  
Heat Treating ◽  
General Purpose ◽  
Medium Carbon Steel ◽  
Medium Carbon ◽  
Steel Mills ◽  
Medium Strength ◽  
Hot Rolled

Abstract SAE 1037 is a carbon steel that provides medium strength and medium toughness at low cost. It is used in the hot-rolled, normalized, oil-quenched-and-tempered and water-quenched-and-tempered conditions. This medium-carbon steel is used for construction and for general-purpose engineering. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-76. Producer or source: Carbon steel mills.

SAE 1026

Alloy Digest ◽  
1976 ◽  
Vol 25 (6) ◽  
Keyword(s):  
Fracture Toughness ◽  
Carbon Steel ◽  
Heat Treating ◽  
Medium Carbon Steel ◽  
High Manganese ◽  
Medium Carbon ◽  
The Core ◽  
Steel Mills ◽  
Cold Worked ◽  
Good Workability

Abstract SAE 1026 is a low-to-medium-carbon steel used in the annealed, hot-worked, normalized, cold-worked or water-quenched-and-tempered condition for a variety of engineering and construction applications. It combines good workability (hot or cold), good machinability and good weldability. It has relatively high manganese (0.60-0.90%); this provides increased hardenability which is reflected in all uses and gives somewhat increased hardness and strength in the core of carburized parts and in uncarburized applications. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: CS-60. Producer or source: Carbon steel mills.

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