Dry sliding wear behavior of Fe3Al alloys prepared by mechanical alloying and plasma activated sintering

Wang, Jian; Xing, Jiandong; Cao, Li; Su, Wei; Gao, Yimin

doi:10.1016/j.wear.2009.09.006

Cited by 33 publications

(15 citation statements)

References 17 publications

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“…The friction coefficients of Fe 3 Al and composite specimens show a relatively stable trend with increasing sliding speed up to 0.3 m·s −1 and then decrease at higher speed. High sliding speed often leads to local heating and surface oxidation [ 21 ]. The changes in the nature and morphology of the surface at high speed, which may lead to a reduced contact area, decrease the friction coefficient and the wear of the components, as will be discussed in the next section.…”

Section: Resultsmentioning

confidence: 99%

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Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

et al. 2016

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This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al-TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high-velocity oxy-fuel (HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical properties and dry sliding wear rates of the coatings at sliding speeds ranging from 0.04 to 0.8 m·s−1 and loads of 3, 5 and 7 N was studied. Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. The wear mechanisms strongly depended on the sliding speed and the presence of TiB2 particles but were less dependent on the applied load.This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al-TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high-velocity oxy-fuel (HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical properties and dry sliding wear rates of the coatings at sliding speeds ranging from 0.04 to 0.8 m·s−1 and loads of 3, 5 and 7 N was studied. Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. The wear mechanisms strongly depended on the sliding speed and the presence of TiB2 particles but were less dependent on the applied load.This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al-TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high-velocity oxy-fuel (HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical properties and dry sliding wear rates of the coatings at sliding speeds ranging from 0.04 to 0.8 m·s−1 and loads of 3, 5 and 7 N was studied. Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. The wear mechanisms strongly depended on the sliding speed and the presence of TiB2 particles but were less dependent on the applied load.This study reveals the effect of TiB2 particles on the mechanical and tribological properties of Fe3Al-TiB2 composite coatings against an alumina counterpart. The feedstock was produced by milling Fe3Al and TiB2 powders in a high energy ball mill. The high-velocity oxy-fuel (HVOF) technique was used to deposit the feedstock powder on a steel substrate. The effect of TiB2 addition on mechanical propert...

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Section: Resultsmentioning

confidence: 99%

“…Wang et al [ 21 ] have calculated an increase of 200 °C in the interfacial temperature when the sliding speed reaches 0.39 m·s −1 . Yang et al [ 27 ] reported that the wear resistance is improved in some systems at high sliding speed because of the formation of an oxide layer.…”

Section: Resultsmentioning

confidence: 99%

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

et al. 2016

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“…Wang et al 20 and Bai et al 21 have studied the dry sliding wear behavior of Fe 3 Al alloys prepared by plasma-activated sintering against GCr15 bearing steels. From their study, it can be seen that wear rate of Fe 3 Al alloys increases (with a small friction coefficient decrease) as applied load increases and reaches a peak at 30 N. As the sliding speed increased, the wear rate decreased but the friction coefficient did not change much.…”

Section: Resultsmentioning

confidence: 99%

Effect of MoS₂ on the tribological properties of in situ Fe₃Al-20 wt% Al₂O₃-4 wt% Cr composites

Bai

Xing

et al. 2013

Proceedings of the Institution of Mechanical Engineers, Part J:

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Fe 3 Al-20 wt% Al 2 O 3 -4 wt% Cr composites containing 0, 5 and 8 wt% MoS 2 were subjected to mechanical alloyinginducing self-propagating high temperature synthesis with subsequent hot-pressing sintering. Microstructures of the composites were studied by X-ray diffraction, scanning electron microscopy and energy dispersive spectrum analysis. Then the relative density, room temperature hardness and dry sliding wear behavior of the sintered composites at 25 C, 500 C and 800 C were tested and analyzed. The results showed that composites with different amounts of added MoS 2 had good microstructure with high relative density and high hardness. The MoS 2 decomposes during sintering with the formation of Fe 3 Mo 3 C and Cr 2 S 3 . Cr 2 S 3 formed from the decomposition process may form a lubricating film that can decrease the friction coefficient. At 800 C, Fe 3 Al-20 wt% Al 2 O 3 -4 wt% Cr with 8 wt% added MoS 2 exhibited a friction coefficient that was nearly 50% lower than that for the sample with no MoS 2 addition. Addition of 8 wt% MoS 2 transformed the wear mechanism from adhesive wear to microploughing.

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“…The wear rate was calculated using mass losses divided by the product of the density and the sliding distance. Mass loss was measured using a precise digital balance of 170 g capacity with an accuracy of ±0.05 g. Figure 7 shows the effect of wear parameters on the wear rate (WR) for cold and hot pressing Fe-Al alloys using abrasive wear tester [21,22,[36][37][38], the wear rate (WR) was calculated using the following equation:…”

Section: Wear Resitancementioning

confidence: 99%

Characteristics of Cold and Hot Pressed Iron Aluminum Powder Metallurgical Alloys

Nassef

El-Garaihy

El-Hadek

2017

Metals

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Iron powders having average particle sizes of~40 µm are mechanically mixed thoroughly with aluminum powders ranging from 1 to 10 in wt. %, with an average particle size of~10 µm. Two different powder metallurgy (PM) techniques, cold and hot pressing, are used to study the effect of the additive element powder on the mechanical properties, wear properties, and the microstructure of the iron based alloys. The hot pressing technique was performed at a temperature reaching up to 500 • C at 445.6 MPa. The cold pressing technique was performed at 909 MPa at room temperature. By increasing the Al content to 10 wt. % in the base Fe-based matrix, the Brinell hardness number was decreased from 780 to 690 and the radial strength from 380 to 228 MPa with reductions of 11.5% and 40%, respectively. Improvement of the wear resistance with the increase addition of the Al powder to the Fe matrix up to five times was achieved, compared to the alloy without Al addition for different wear parameters: wear time and sliding speed.

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Dry sliding wear behavior of Fe3Al alloys prepared by mechanical alloying and plasma activated sintering

Cited by 33 publications

References 17 publications

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

Effect of MoS₂ on the tribological properties of in situ Fe₃Al-20 wt% Al₂O₃-4 wt% Cr composites

Characteristics of Cold and Hot Pressed Iron Aluminum Powder Metallurgical Alloys

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Dry sliding wear behavior of Fe3Al alloys prepared by mechanical alloying and plasma activated sintering

Cited by 33 publications

References 17 publications

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications

Effect of MoS2 on the tribological properties of in situ Fe3Al-20 wt% Al2O3-4 wt% Cr composites

Characteristics of Cold and Hot Pressed Iron Aluminum Powder Metallurgical Alloys

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Effect of MoS₂ on the tribological properties of in situ Fe₃Al-20 wt% Al₂O₃-4 wt% Cr composites