Tribological Behavior of Al–20Si–5Fe–2Ni Alloy at Elevated Temperatures Under Dry Sliding

Wear-resistant aluminum alloys have enormous potential applications. In this paper, the Al–20Si–5Fe–2Ni alloy was fabricated by hot-pressed sintering, and its dry sliding wear behavior was investigated from 25 °C to 500 °C sliding against Al2O3 ceramic and AISI 52100 steel. The microstructure, phase, high temperature hardness, and worn surface of the sintered alloy were examined. The results indicate that the uniform distribution of Si particles and Al5FeSi intermetallic in the Al matrix contribute to its superior tribological properties. Additionally, the correlation of the tribological behavior of the alloy with the sliding testing conditions was studied, and its wear mechanism was discussed.

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The Effect of Boron Nitride on Tribological Behavior of Mg Matrix Composite at Room and Elevated Temperatures

Journal of Tribology ◽

10.1115/1.4044858 ◽

2019 ◽

Vol 142 (1) ◽

Author(s):

Fatih Aydin ◽

M. Emre Turan

Keyword(s):

Boron Nitride ◽

Wear Debris ◽

Sliding Wear ◽

Solid Lubricant ◽

Elevated Temperatures ◽

Tribological Behavior ◽

Wear Behavior ◽

Thermal Softening ◽

Dry Sliding Wear ◽

Worn Surface

Abstract The goal of the study is to examine the dry sliding wear behavior of pure Mg and Mg/nano-boron nitride (BN) composite at elevated temperatures. The wear behavior of the samples was evaluated under loads of 5, 10, and 20 N, at sliding speed of 80, 130, and 180 mm s−1 and at temperatures of 25, 100, and 175 °C. The examination of worn surface, counterface, and wear debris was performed. The results showed that nano-BN particles lead to substantial enhancement of wear resistance for both room and elevated temperatures. Mg/0.25 BN has lower coefficient of friction values due to the presence of BN which act as solid lubricant. The wear mechanisms are thermal softening, melting, oxidation, abrasion, and delamination.

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Dry Sliding Wear Behavior of Hot Pressed Fe-28Al and Fe-28Al-10Ti Alloys

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.306-307.425 ◽

2011 ◽

Vol 306-307 ◽

pp. 425-428

Author(s):

Jing Li ◽

Xiao Hong Fan ◽

De Ming Sun

Keyword(s):

Plastic Deformation ◽

Sliding Wear ◽

Wear Behavior ◽

Wear Test ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Long Distance ◽

Wear Performance ◽

Testing Conditions ◽

Worn Surface

Fe-28Al and Fe-28Al-10Ti alloys were prepared by mechanical alloying and hot pressing. The phases and dry sliding wear behavior were studied. The results show that Fe-28Al bulk materials are mainly characterized by the low ordered B2 Fe3Al structure with some dispersed Al2O3 particles. Fe-28Al-10Ti exhibits more excellent wear resistance than Fe-28Al, especially after long distance sliding wear test. There are obvious differences in wear mechanisms of Fe-28Al and Fe-28Al-10Ti alloys under different testing conditions. Under the load of 100N, there is plastic deformation on the worn surface of Fe-28Al. The main wear performance of Fe-28Al-10Ti is particle abrasion, the characteristics of which are micro cutting and micro furrows, but micro-crack and layer splitting begin to form on the surface of Fe-28Al. Under the load of 200N, serious plastic deformation and work-hardening lead to rapid crack propagation and eventually the fatigue fracture of Fe-28Al. Plastic deformation is the main wear mechanism of Fe-28Al-10Ti under the load of 200N, which are characterized by micro-crack and small splitting from the worn surface.

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Dry Sliding Wear Behavior and Mild–Severe Wear Transition of Mg97Zn1Y2 Alloy at Elevated Temperatures

Materials ◽

10.3390/ma11091735 ◽

2018 ◽

Vol 11 (9) ◽

pp. 1735 ◽

Cited By ~ 2

Author(s):

Liang Li ◽

Jihe Feng ◽

Ce Liang ◽

Jian An

Keyword(s):

Test Temperature ◽

Sliding Wear ◽

Elevated Temperatures ◽

Wear Behavior ◽

Hardness Measurement ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Softening Effect ◽

Severe Wear ◽

Wear Transition

Dry sliding wear behavior of Mg97Zn1Y2 alloy was investigated at test temperatures of 50–200 °C under three sliding speeds of 0.8 m/s, 3.0 m/s and 4.0 m/s. The wear mechanisms in mild and severe wear regimes were identified by examination of morphologies and compositions of worn surfaces using scanning electron microscope (SEM) and energy dispersive X-ray spectrometer (EDS), and from which wear transition maps under different sliding speeds were constructed on rectangular coordinate systems with applied load versus test temperature axes. It is found that under each sliding speed condition, mild–severe transition load decreases almost linearly within the test temperature range of 50 °C to 200 °C. Microstructure observation and hardness measurement in subsurfaces identify that the softening effect generating form dynamic crystallization (DRX) is the dominant mechanism for the mild–severe wear transition at elevated temperatures. The mild–severe wear transition at 50–200 °C follows the contact surface DRX temperature criterion, and the transition loads can be well evaluated using the criterion.

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Effect of Temperature on Friction and Wear Behavior under Reciprocating Dry Sliding of AISI 52100 Steel against AISI H13 Steel

Materials Performance and Characterization ◽

10.1520/mpc20200017 ◽

2020 ◽

Vol 9 (1) ◽

pp. 20200017

Author(s):

Alexander Zuleta Durango ◽

Michell Felipe Cano ◽

Roberto Martins Souza ◽

Amilton Sinatora

Keyword(s):

Friction And Wear ◽

Wear Behavior ◽

Effect Of Temperature ◽

Dry Sliding ◽

H13 Steel ◽

Friction And Wear Behavior ◽

Aisi H13 Steel ◽

Aisi 52100 ◽

Aisi 52100 Steel ◽

Aisi H13

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Dry Sliding Wear Performance of A356 Alloy with Minor Additions of Magnesium

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.592-594.175 ◽

2014 ◽

Vol 592-594 ◽

pp. 175-180 ◽

Cited By ~ 1

Author(s):

M.S. Prabhudev ◽

Virupaxi Auradi ◽

Karodi Venkateshwarlu ◽

S.M. Suresha ◽

S.A. Kori

Keyword(s):

Sliding Wear ◽

Alloy Composition ◽

Wear Behavior ◽

A356 Alloy ◽

Dry Sliding Wear ◽

Dry Sliding ◽

Wear Performance ◽

Mg Addition ◽

Mg Content ◽

Worn Surface

In the present investigation, effect of minor additions of magnesium (Mg) content on the dry sliding wear behavior of A356 alloy has been reported. Alloy composition, normal pressures and sliding distances on A356 alloy has been studied. The worn surfaces were characterized by SEM microanalysis. The results indicate that, the wear rate of A356 alloy increases with increase in normal pressures and sliding distances in all the cases and decreases with 0.7% Mg addition to the A356 alloy. This is due to the change in microstructure resulting in improvement of hardness and strength of the alloy. The worn surface study indicates that, the formation of oxide layer between the mating surfaces during sliding improves sliding wear performance.

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Dry sliding wear of a Ni-based superalloy as a function of the aging time.

MRS Advances ◽

10.1557/adv.2020.422 ◽

2020 ◽

Vol 5 (59-60) ◽

pp. 3091-3102

Author(s):

Luis E. Gonzalez A. ◽

Arnoldo Bedolla-Jacuinde ◽

Eduardo Cortés C ◽

Francisco V. Guerra ◽

A Ruiz

Keyword(s):

Electron Microscopy ◽

Wear Resistance ◽

Aging Time ◽

Wear Behavior ◽

Dry Sliding Wear ◽

Vacuum Induction Furnace ◽

Ceramic Mold ◽

Wear Volume ◽

Dry Sliding ◽

Worn Surface

AbstractFrom the present work, the wear behavior of aged Ni-based superalloy was analyzed under dry sliding conditions. Such alloy was melted in a vacuum induction furnace and cast into a ceramic mold. Then the alloy was solubilized at 1080°C for 4 hours and then aged at 760°C for 4, 8, 16, 24, 48, 72 and 150 hours. The alloy was characterized as-cast and also in the heat-treated conditions by transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray diffraction (XRD). Mechanical characterization included just Vickers hardness and wear resistance under dry sliding conditions by a block on ring configuration according to the ASTM G77 standard. Wear tests were undertaken for 2000 m at a speed of 0.7 ms-1 at two different loads (25 and 78 N). The worn samples were analyzed by an optical profiler to determine the wear volume and by SEM to analyze the worn surface and the microstructure below the worn surface. The main findings indicate the formation of an oxide layer mainly formed by Cr and Ni during sliding. The thickness of such a layer is about 10 μm for short aging times and about 5 μm for longer aging times. For this load, the wear resistance was 50% higher for the shorter aging times than that for the longer aging times. This behavior is described in terms of the thickness of the protecting layer, and on the availability of chromium to form such a layer since it forms Cr23C6 at long aging times. On the other hand, for a load of 78 N the wear behavior is in agreement with hardness. Wear resistance increases with aging time due to the higher precipitation of prime gamma phase.

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