Formation of a self-lubricating layer by oxidation and solid-state amorphization of nano-lamellar microstructures during dry sliding wear tests

2019 ◽  
Vol 166 ◽  
pp. 208-220 ◽  
Author(s):  
Cun-hong Yin ◽  
Yi-long Liang ◽  
Yu Liang ◽  
Wei Li ◽  
Ming Yang
Keyword(s):  
Solid State ◽  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Lubricating Layer ◽  
State Amorphization ◽  
Wear Tests

Lowering the coefficient of martensite steel by forming a self-lubricating layer in dry sliding wear

2019 ◽  
Vol 6 (5) ◽  
pp. 055024 ◽  
Author(s):  
Yun-Gang Cao ◽  
Cun-Hong Yin ◽  
Yi-Long Liang ◽  
Shi-Hao Tang
Keyword(s):  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Lubricating Layer

scholarly journals NiTi Intermetallic Surface Coatings by Laser Metal Deposition for Improving Wear Properties of Ti-6Al-4V Substrates

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mokgadi Nomsa Mokgalaka ◽  
Sisa Lesley Pityana ◽  
Patricia Abimbola Idowu Popoola ◽  
Tebogo Mathebula
Keyword(s):  
Sliding Wear ◽  
Surface Coatings ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Wear Properties ◽  
Wear Analysis ◽  
Intermetallic Coatings ◽  
Oxidation And Corrosion ◽  
Ti Content ◽  
Wear Tests

The NiTi intermetallic possesses a number of good properties, such as high wear, oxidation, and corrosion resistance. This paper focuses on the deposition of NiTi intermetallic coatings on Ti6Al4V substrate by laser melting of Ti and Ni elemental powder mixtures. The effect of varying the Ti content in the NiTi composition on the microstructure and wear properties of the coatings was investigated. The microstructure of the NiTi intermetallic coatings were characterized by the scanning electron microscope (SEM) equipped with Energy Dispersive Spectroscope (EDS). The wear properties of the coatings were performed under accelerated dry sliding wear tests. The results obtained from the SEM/EDS analysis; show that the coatings consist of Ni and Ti elements from the feedstock, and the NiTi, NiTi2and NiTi3, intermetallic phases. Dry sliding wear analysis revealed that there is correlation between the hardness and the wear rate. The coatings displayed significant improvement in wear resistance up to 80% compared to the substrate.

Lifespan assessment of carbonized slag removal chains by dry-sliding wear tests

2018 ◽  
Vol 93 ◽  
pp. 289-299 ◽  
Author(s):  
Qiancheng Liu ◽  
Zhongyu Liu ◽  
Xingwei Wang ◽  
Guozhi Liu ◽  
Qingkun He ◽  
...  
Keyword(s):  
Sliding Wear ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Slag Removal ◽  
Wear Tests

Microstructure and wear property of spray formed high leaded bronze

2015 ◽  
Vol 29 (10n11) ◽  
pp. 1540024
Author(s):  
Pengfei Yan ◽  
Deping Wang ◽  
Biao Yan
Keyword(s):  
Sliding Wear ◽  
Cast Alloy ◽  
Spray Forming ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Wear Property ◽  
Wear Properties ◽  
Bronze Alloy ◽  
Lead Phase ◽  
Wear Tests

In this research, Cu-9Pb high leaded bronze were prepared by spray forming. The microstructure and wear properties of this bronze alloy were systematically investigated. The results show that although the hardness of spray formed alloy was not increased comparing with the cast alloy, it still presented a lower wear rate and a lower friction coefficient in dry sliding wear tests as shallower grooves and more lubricating films were observed in the spray formed bronze (BSF14). Spray forming also refined the lead phase microstructure of Cu-9Pb bronze and improved its wear properties.

Dry Sliding Wear Behavior of Ti-6Al-4V Alloy

2015 ◽  
Vol 830-831 ◽  
pp. 333-336 ◽  
Author(s):  
M. Ananda Jothi ◽  
S. Ramanathan
Keyword(s):  
Sliding Wear ◽  
Wear Behavior ◽  
Energy Dispersive Spectrometer ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Wear Rates ◽  
Pin On Disc ◽  
Marine Applications ◽  
Sliding Distance ◽  
Wear Tests

Titanium and its alloys exhibit a unique combination of physical and corrosion resistance properties which make them ideal materials for space flight engine component such as disks and blades of compressor, marine applications, chemical industries and many bio medical applications. However the use of these materials is limited due to its poor tribological properties. Dry sliding wear tests were performed on Ti-6Al-4V using a pin-on-disc (EN31 steel) configuration. Wear rates were measured with different load and sliding velocity at a constant sliding distance. Microstructures of worn surfaces were characterized by scanning electron microscope (SEM) and energy dispersive spectrometer (EDS).

Wear Behaviour of Al-1050 Alloy Processed by Severe Plastic Deformation

2010 ◽  
Vol 667-669 ◽  
pp. 1101-1106 ◽  
Author(s):  
Chuan Ting Wang ◽  
Nong Gao ◽  
Robert J.K. Wood ◽  
Terence G. Langdon
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Wear Rate ◽  
Wear Mechanism ◽  
Sliding Wear ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Oxidation Wear ◽  
Wear Tests

An Al-1050 alloy was processed by ECAP and HPT, respectively. Dry sliding wear tests were conducted on the as-received and SPD-processed samples under various sliding conditions. A comparison of wear rate indicated that SPD processing decreased the wear resistance. Two main wear mechanisms were observed. The initial wear stage was dominated by severe platelet wear mechanism and later wear was dominated by an oxidation wear mechanism. The results show the severe wear stage of SPD-processed Al-1050 is much longer than that of the as-received Al-1050, which is attributed to the loss of work hardening capacity after SPD processing.

The Correlation between Applied Load and Sliding Speed on Wear Behaviour of Tamarind Wood under Dry Sliding Tests

2014 ◽  
Vol 554 ◽  
pp. 416-420
Author(s):  
Bin Yusoff Zamri ◽  
Yusoff Azmi
Keyword(s):  
Mild Steel ◽  
Mass Loss ◽  
Sliding Wear ◽  
Applied Load ◽  
Wear Behavior ◽  
Wear Behaviour ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Sliding Speed ◽  
Wear Tests

The correlation between applied load and sliding speed on the wear behavior of tamarind wood was analyzed using statistical analysis. Dry sliding wear tests were conducted using the block-on-roller technique while mass loss was measured by using a micro balancer. The test specimens measured 20 mm by 20 mm by 10 mm and were made of tamarind wood. The roller which acted as the counter surface material was made of mild steel (120 HV), cut from a commercial mild steel bar (50 mm in diameter) measuring 300 mm in length. Dry sliding wear tests on tamarind wood was conducted using different sliding velocities (60 rpm, 95 rpm and 145 rpm) and applied using different loads (10 N, 20 N and 30 N). The test results were analyzed and inferred using linear correlation and regression. The results suggest that sliding speed and applied load have a significant and positive influence on mass loss. A direct correlation between applied load and sliding speed on the mass loss of tamarind wood was evident. Regression analysis indicated that the contribution of applied load and sliding speed on the mass loss of tamarind wood under dry sliding was at 82.6%.

scholarly journals Investigation of wear conditions of a composite material based on an anti-friction alloy AO20-1 reinforced with Ti particles

2021 ◽  
Vol 12 (2-2021) ◽  
pp. 36-41
Author(s):  
P. A. Bykov ◽  
◽  
I. E. Kalashnikov ◽  
L. I. Kobeleva ◽  
A. G. Kolmakov ◽  
...  
Keyword(s):  
Composite Material ◽  
Sliding Wear ◽  
Rotating Disk ◽  
Intermetallic Phases ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Ti Particles ◽  
Wear Modes ◽  
Disk Sample ◽  
Wear Tests

Сomposite material samples were obtained by the method of reaction casting by mixing titanium particles to obtain intermetallic phases Al3Ti. Dry sliding wear tests were carried out using a fixed sleeve (steel 45) against a rotating disk (sample) at sliding speeds from 0.25 to 0.75 m/s and loads from 0.5 to 3.5 MPa.There were constructed maps of wear rate, which determine the friction modes during testing. There were shown boundaries and conditions of changing wear modes.

scholarly journals The Kinetics and Dry-Sliding Wear Properties of Boronized Gray Cast Iron

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Dong Mu ◽  
Bao-luo Shen
Keyword(s):  
Cast Iron ◽  
Sliding Wear ◽  
Single Phase ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
X Ray Diffraction ◽  
Wear Properties ◽  
Wear Tests

Some properties of boride formed on gray cast iron (GCI) have been investigated. GCI was boronized by powder-pack method using Commercial LSB-II powders at 1123, 1173, and 1223 K for 2, 4, 6, and 8 h, respectively. Scanning electron microscopy showed that boride formed on the surface of boronized GCI had tooth-shaped morphology. The hardness of boride formed on surfaces of GCI ranged from 1619 to 1343 HV0.025, and quenched and tempered GCI ranged from 400 to 610 HV0.025. The boride formed in the coating layer confirmed by X-ray diffraction analysis was Fe2B single phase. Depending on boronizing time and temperature, the thickness of coating layers on boronized GCI ranged from 26 to 105 μm. The activation energy was 209 kJ/mol for boronized GCI. Moreover, the possibility of predicting the iso-thickness of boride layers variation was studied. Dry-sliding wear tests showed that the wear resistance of boronized sample was greater than that of quenched and tempered sample.

Sign in / Sign up

Export Citation Format

Share Document