Effect of Substrate Heat Treatment on Wear Behavior of Fe- and Ni-Based Hardfacings

2016 ◽  
Vol 674 ◽  
pp. 319-324 ◽  
Author(s):  
Christian Katsich ◽  
Reinhard Polak
Keyword(s):  
Heat Treatment ◽  
Tool Steel ◽  
Wear Behavior ◽  
Steel Substrate ◽  
Mining Industry ◽  
Wear Performance ◽  
Wear Resistant ◽  
Abrasion Test ◽  
Three Body ◽  
Tempered Steel

In different fields of high abrasive processes, e.g. in agriculture and mining industry, components made of tempering steel are additionally protected with a wear resistant alloy on high loaded sections. An industrial standard process flow includes heat treatment of components after hardfacing process. However, the exact effect of heat treatment procedure on wear performance of hardfacings is still mostly unknown.The main aim of this study was to determine the influence of substrate heat treatment on iron and nickel based hardfacings under two and three-body conditions. Commonly used wear resistant tempered steel was used as substrate material. Heat treatment investigations were performed on two Fe-based tool steel alloys (M2 and FeVCrC) and a Ni-based alloy reinforced with WC/W2C (Ni-FTC) deposited by plasma transferred arc technology (PTA), respectively. After hardfacing a heat treatment optimized for tempered steel substrate was performed on hardfaced samples.Microstructure investigations were done by optical microscopy, scanning electron microscopy and hardness measurements. Additionally wear behavior was estimated by dry-sand rubber-wheel test (three-body abrasion) and continuous impact abrasion test (two-body abrasion).Results showed significant influence of heat treatment, due to microstructural changes, on wear performance under 3-body conditions of Fe-based tool steels. This effect was not as pronounced in Ni-based alloy than in types of tool steel. Interestingly, in both M2 tool steel and Ni-based systems heat treatment led to decrease 2-body wear resistance. However, heat treated V-rich tool steel type showed good wear performance in continuous impact abrasion test. Composed wear map, based on this study, shows critical changes in general wear performance for investigated hardfacings.

Effect of Heat Treatment Temperature and Lubricating Conditions on the Fretting Wear Behavior of SAF 2507 Super Duplex Stainless Steel

2019 ◽  
Vol 141 (10) ◽  
Author(s):  
Mengjiao Wang ◽  
Yunxia Wang ◽  
Jianzhang Wang ◽  
Na Fan ◽  
Fengyuan Yan
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Wear Resistance ◽  
Duplex Stainless Steel ◽  
Wear Behavior ◽  
Treatment Temperature ◽  
Fretting Wear ◽  
Super Duplex Stainless Steel ◽  
Wear Performance ◽  
Seawater Lubrication

Super duplex stainless steel (SDSS) has excellent mechanical properties and corrosion resistance. However, currently, there are few researches conducted on its fretting wear performance. This paper studies the influence of different heat treatment temperatures and medium environment on the fretting wear performance of SAF 2507 SDSS. Results show that the combined effect of the sigma phase and seawater lubrication can significantly improve the wear resistance of SAF 2507 SDSS. After treated with different heat treatment temperatures, different contents of sigma phases are precipitated out of SAF 2507 SDSS, which improves the wear resistance of the material to different degrees. In addition, the fretting wear performance of SAF 2507 SDSS also relates to the lubrication medium. In air, the friction and wear performance of SAF 2507 SDSS is poor, while in seawater, solution and corrosion products that acted as a lubricant dramatically improve the wear resistance of the material. Under the combined action of heat treatment and seawater lubrication medium, the friction coefficient and wear reduce by 70% and 91%, respectively.

Influence of Particle Size of Wheat Powder on Roller Wear Properties

2015 ◽  
Vol 1120-1121 ◽  
pp. 1316-1319
Author(s):  
Liang Peng Jiang ◽  
Ke Ping Zhang ◽  
Jun Min Ma
Keyword(s):  
Weight Loss ◽  
Particle Size ◽  
Wear Behavior ◽  
Low Cycle Fatigue ◽  
Milling Process ◽  
Wear Properties ◽  
Fatigue Wear ◽  
Wear Performance ◽  
Powder Particles ◽  
Three Body

Wheat milling process involves multiple grinding procedures, the wheat powder particles size in different grinding procedure are difference. In order to study the influence of particle size of wheat powder on roller wear performance in different grinding procedure, abrasion experiments were carried out by MLS-225 three-body abrasive wear tester, while different sizes were chosen as abrasive, alloy white iron which frequently used as roller metal materials was chosen as wear sample, wear weight loss and surface microstructure were chosen as the main evaluation indicators. The results showed that the weight loss of samples were showed a linear relationship with wheat the size of wheat powder. The main wear behavior was mainly mechanical polishing while particle sizes was smaller one. For the larger size, wear was made by multiple plastic deformation and low cycle fatigue wear mechanism.

TLS D2

Alloy Digest ◽  
2008 ◽  
Vol 57 (2) ◽  
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Physical Properties ◽  
Tool Life ◽  
Tool Steel ◽  
Heat Treating ◽  
Size Change ◽  
Wear Resistant

Abstract TLS D2 is the most wear resistant of the commonly available grades of tool steel. It is deep hardening and has very low size change during heat treatment. However, because of its excellent wear resistance, it produces a low machinability rating. It is chosen when long tool life is required. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-660. Producer or source: Timken Latrobe Steel.

scholarly journals Wear Transition in Fluoropolymer Based Composite Coatings

1996 ◽  
Vol 5 (2) ◽  
pp. 096369359600500
Author(s):  
M.Q. Zhang ◽  
K. Friedrich ◽  
K. Batzar ◽  
P. Thomas
Keyword(s):  
Wear Behavior ◽  
Composite Coatings ◽  
Wear Testing ◽  
Material Microstructure ◽  
Wear Performance ◽  
Testing Method ◽  
Abrasive Wear Behavior ◽  
Three Body Abrasion ◽  
Three Body ◽  
Wear Transition

Abrasive wear behavior of fluoropolymer based composite coatings was investigated by using a particular wear testing method, the Nord Test. It was found that the abrasion process was a decelerated one due to a transition from three-body abrasion to two-body sliding wear. Coating thickness but not material microstructure controlled the wear performance of the present coating systems.

scholarly journals Forming of Composite Cutting Layer on Tool Steel by Heat Treatment of CVD Coatings

2022 ◽  
Author(s):  
I. Belashova
Keyword(s):  
Heat Treatment ◽  
Organic Compounds ◽  
Tool Steel ◽  
Steel Substrate ◽  
Nano Particles ◽  
Hybrid Coatings ◽  
Dispersion Strengthening ◽  
Micro Hardness ◽  
Chromium Carbides ◽  
Subsequent Heating

Abstract. СVD chromium coatings are evaporated on steel substrate from chrome-organic compounds. For crystallization with forming of nano-particles of chromium carbides, subsequent heating (annealing) of tool steel with hybrid coatings is carrying out. Significant increase of micro-hardness of the coating up to 27000 MPa is observed due to the dispersion strengthening. Optimal annealing parameters (temperature and duration) are determined, which maximally strengthen the coatings and increase their adhesion to the steel substrate.

scholarly journals Effect of heat treatment on the tribological performance of electroless quaternary nickel alloy

2019 ◽  
Vol 13 (3) ◽  
pp. 5637-5652
Author(s):  
M. Zaimi ◽  
M. N. Azran ◽  
M. S. Kasim ◽  
M. R. M. Kamal ◽  
I. S. Othman ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Wear Behavior ◽  
Steel Substrate ◽  
Alloy Coating ◽  
Xrd Analysis ◽  
Alloy Matrix ◽  
X Ray ◽  
Hardness Tester ◽  
Heat Treated ◽  
Before And After

Heat treatment of nickel-based alloy can increase the alloy’s hardness as well as the wear resistance properties. Nevertheless, the effect of heat treatment on the quaternary Ni alloy coating properties produced from electroless deposition bath is less known due to its composition uniqueness. In this study, Cu and Co are added in the Ni-P alloy matrix using hypophosphite-based Electroless Ni deposition method on mild steel substrate in acidic and alkaline bath. The coatings are then heat treated at 623 K for 3600s. The coatings hardness is measured using microVickers hardness tester and the surface morphology of the coatings are studied using both Scanning Electron Microscope (SEM) and X-ray diffraction (XRD) analysis. X-ray fluorescence (XRF) measurement is used to measure the coatings compositions. The wear behavior of the coatings is also investigated before and after heat treatment using ASTM G-99. The coatings from acidic-based bath produces Ni-Cu-Co-P alloy coating while the alkaline-based bath produces Ni-Co-Cu-P alloy based on XRF analysis. Results show that the hardness increases more than 20% for acidic-based bath and 40% for alkaline-based bath coating. The highest increment is the Ni-Co-Cu-P alloy, from 553.3 HV to 991.3 HV after heat treatment. The grain refinement of the coatings can be observed after heat treatment in SEM observation. This is proved by the XRD measurement results where polycrystalline Ni (111) formation is seen after heat treatment overshadowing the Cu (111) and Co (111) peaks. Ni phosphide species are also formed after the heat treatment. The polycrystalline Ni and the Ni phosphide formation, as well as the existence of Co and Cu in the alloy deposits reduces the wear rate significantly after the heat treatment.

A Comparative Study of the Tribological Behavior of Tin Powder Clad on the JIS SKD11 Tool Steel with the GTAW Method

2014 ◽  
Vol 966-967 ◽  
pp. 365-376
Author(s):  
Yu Chi Lin ◽  
Han Ming Chen ◽  
Yong Chwang Chen
Keyword(s):  
Tool Steel ◽  
Wear Behavior ◽  
Wear Test ◽  
Wear Testing ◽  
Dry Sliding Wear ◽  
Titanium Nitrides ◽  
Test Results ◽  
Wear Performance ◽  
Gas Tungsten Arc ◽  
Better Than

This work focused on the wear performance of the clad layers which were formed with cladding titanium nitrides (TiN) powder on the JIS SKD11 tool steel by the gas tungsten arc welding (GTAW) method. A rotating type tribometer was used to evaluate the wear behavior of the clad specimens under different sliding conditions. Furthermore, a nanoindenter was used to measure the hardness and elastic modulus of the reinforcements. According to the wear test results, the wear performance of the specimens cladded with TiN powder was better than that of the JIS SKD11 tool steel specimens. During dry sliding wear test, the clad layers exhibited a strong wear resistance because they contained the hard TiN reinforcements. Therefore, the wear performance of the clad layers was substantially better than that of the SKD11 specimens under all the test conditions in this study. In addition, produced oxide films might influence the wear behavior of different specimens during the wear testing, and oxidation wear would even dominate the wear behavior of the clad layers under some conditions.

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