Friction and Wear Properties of the Siliconized, Chromized and Borochromized Steel Substrates

2014 ◽  
Vol 783-786 ◽  
pp. 1464-1469 ◽  
Author(s):  
Takashi Murakami ◽  
Yuko Hibi ◽  
Hiroki Mano ◽  
Kunio Matsuzaki ◽  
Haruyuki Inui
Keyword(s):  
Ethyl Alcohol ◽  
Friction And Wear ◽  
Steel Plate ◽  
Coated Steel ◽  
Wear Properties ◽  
Friction Coefficients ◽  
Friction And Wear Properties ◽  
Steel Substrates

In this study, the friction and wear properties of the siliconized, chromized and borochromized SS 400 steel/Si3N4 tribopairs were investigated in ethyl alcohol at 298 K. The surface of the siliconized plate specimens mainly consisted of Fe3Si, while the surfaces of the chromized and borochromized steel plate specimens were mainly composed of Fe-Cr alloy and Cr2B phases, respectively. The borochromized specimens exhibited the highest microvickers hardness of all the plate specimens. Also, it was found that both the chromized and borochromized steel specimens exhibited friction coefficients as low as 0.2 in ethyl alcohol, and that the friction coefficients of the siliconized steel specimens were slightly lower than those of the non-coated steel specimens.

Interpretation of friction and wear properties of MoS2 coated steel substrates

Wear ◽  
1994 ◽  
Vol 177 (1) ◽  
pp. 93-101 ◽  
Author(s):  
J.M. Cunningham ◽  
I.J. Ford ◽  
J.A. Ogilvy ◽  
E.W. Roberts
Keyword(s):  
Friction And Wear ◽  
Coated Steel ◽  
Wear Properties ◽  
Friction And Wear Properties ◽  
Steel Substrates

Friction and wear properties of Fe7Mo6-based alloy in ethyl alcohol

2010 ◽  
Vol 43 (11) ◽  
pp. 2183-2189 ◽  
Author(s):  
T. Murakami ◽  
H. Mano ◽  
Y. Hibi ◽  
S. Sasaki
Keyword(s):  
Ethyl Alcohol ◽  
Friction And Wear ◽  
Wear Properties ◽  
Friction And Wear Properties

A Comparative Study on the Friction and Wear Properties of Three Different Copper Alloys

2018 ◽  
Vol 913 ◽  
pp. 205-211
Author(s):  
Dong Mei Liu ◽  
Qiang Song Wang ◽  
Wei Yuan ◽  
Xu Jun Mi
Keyword(s):  
Friction Coefficient ◽  
Comparative Study ◽  
Dry Friction ◽  
Friction And Wear ◽  
Copper Alloys ◽  
Friction Condition ◽  
Al Alloy ◽  
Wear Properties ◽  
Friction Coefficients ◽  
Friction And Wear Properties

A comparative study on the friction and wear properties of three kinds of copper alloys, including Cu-Ni based, Cu-Al and Cu-Be alloys was carried out in this study. The friction pair was stainless steel, and both dry and MoS2 lubrication friction experiments were investigated. During the experiments, different loads were chosen for different alloys. It was found that under dry friction condition, the friction coefficients of both Cu-Ni based and Cu-Al alloys did not change as the loads changes, whereas the friction coefficient of Cu-Be alloy increased as the loads increases. Under lubrication friction condition, the friction coefficients of all three alloys did not change as the load changes. The results show that the dry friction coefficient of Cu-Ni based alloy was the largest (0.74), the Cu-Al alloy next (0.60), and the Cu-Be alloy had the smallest dry friction coefficient (0.54). The lubrication friction coefficient of Cu-Ni based and Cu-Be was equal and relatively smaller (0.12), whereas the Cu-Al alloy had a relative larger lubrication friction coefficient (0.27). The microstructure observations were consistent with the friction and wear performance, and the SEM results show that different wear mechanisms were dominated for different alloys.

Friction and Wear Properties of Zr and TiC-Based Cermet Specimens in a Hydrogen Gas Atmosphere

2010 ◽  
Vol 638-642 ◽  
pp. 3412-3417 ◽  
Author(s):  
Takashi Murakami ◽  
Katsuo Kaneda ◽  
Hiroki Mano ◽  
Masayuki Hata ◽  
Shinya Sasaki ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Friction And Wear ◽  
Hydrogen Gas ◽  
Layered Crystal ◽  
Wear Properties ◽  
Low Friction ◽  
Friction Coefficients ◽  
Layered Crystal Structure ◽  
Gas Atmosphere ◽  
Friction And Wear Properties

In this study, Zr, Ti and TiC-based cermet specimens were prepared, and their friction and wear properties in various gas atmospheres were examined. The Zr specimens exhibited the lowest friction coefficients and the smallest volume change in the H2 gas atmosphere. This reason would have been due to the formation of the -type Zr hydride, which has a layered crystal structure. The Ti specimens exhibited similar friction and wear properties, although the TiC-based cermet specimens containing small amount of Mo, Ni and W exhibited the lowest friction coefficients in air, not in the H2 gas atmosphere. The low friction coefficients of the cermet specimens in air is likely to have been due to the formation of the low friction Mo oxides and W oxides.

Friction and wear properties of αFeSi2–Si alloy, ReSi1.8 and MoSi2 in ethyl alcohol

2014 ◽  
Vol 69 ◽  
pp. 61-69 ◽  
Author(s):  
T. Murakami ◽  
H. Mano ◽  
Y. Hibi ◽  
K. Matsuzaki ◽  
H. Inui
Keyword(s):  
Ethyl Alcohol ◽  
Friction And Wear ◽  
Wear Properties ◽  
Friction And Wear Properties

Friction and Wear Properties of Fe7Mo6-Based Alloy under Various Sliding Conditions

2012 ◽  
Vol 706-709 ◽  
pp. 1083-1088
Author(s):  
Takashi Murakami ◽  
Kunio Matsuzaki
Keyword(s):  
High Temperatures ◽  
Friction And Wear ◽  
Testing Temperature ◽  
Wear Properties ◽  
Friction Coefficients ◽  
Rich Phase ◽  
Wear Rates ◽  
Friction And Wear Properties ◽  
Worn Surface ◽  
Friction And Wear Tests

In this study, the friction and wear properties of the Fe7Mo6-based alloy/Al2O3 tribopair were investigated at high temperatures in air and at 298 K in water. The Fe7Mo6-based alloy/Al2O3 tribopair exhibited friction coefficients as low as 0.5 at 298 K and 873 K in air. On the other hand, this tribopair exhibited higher friction coefficients at 573 K than at 298 K and 873 K. It was also found that the friction coefficients of this tribopair were approximately 0.5 in water. The Fe7Mo6-based alloy disk specimens and their paired Al2O3 ball specimens exhibited the highest specific wear rates at 873 K in air. Oxygen-rich phase was observed on the worn surfaces of all the disk specimens. Concerning the friction and wear tests at high temperatures in air, the amount of the oxygen-rich phase increased with increasing the testing temperature. In addition, a little larger amount of the oxygen-rich phase was observed on the worn surface formed at 298 K in water than that formed at 298 K in air.

Analysis on the Friction and Wear Properties of Friction Stir Jointing for 7022 Aluminum Alloy Joining Region

2016 ◽  
Vol 693 ◽  
pp. 718-725 ◽  
Author(s):  
H.F. Wang ◽  
J.L. Wang ◽  
W.W. Song ◽  
Dun Wen Zuo ◽  
D.L. Shao ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Friction Coefficient ◽  
Base Metal ◽  
Friction And Wear ◽  
Wear Volume ◽  
Wear Properties ◽  
Friction Coefficients ◽  
Friction Stir ◽  
Friction And Wear Properties ◽  
The Law

The friction and wear properties of the friction stir jointing 7022 aluminum alloy joining region were tested in this paper. The friction coefficients and wearing capacities of the joining regions under different joining process parameters were obtained. The experiment results showed that the friction coefficients and wearing capacities of the joining regions had a certain relationship with the hardness, but not became direct ratio relation. The friction coefficient of the joining region was smaller than that of the base metal. This main reason was base metal was lath-shaped grain, and the joining region was isometric crystal. The wear volume under 400/30 parameters was minimum. The wear volume was greatly influenced by the hardness of the joining region, but was not direct proportion relationship. Due to the random factors influence in friction process, the law of the friction coefficient reflecting friction and wear was not the same with the law of wear volume reflecting friction and wear. The friction form was abrasive wear and adhesive wear.

Tribological Properties of MoS2-Coated Gray Cast Irons with Some Different Matrix Phases under the Boundary Lubricating Conditions

2007 ◽  
Vol 353-358 ◽  
pp. 788-791
Author(s):  
Takashi Murakami ◽  
T. Inoue ◽  
H. Shimura ◽  
Shinya Sasaki ◽  
Miki Nakano
Keyword(s):  
Cast Iron ◽  
Friction And Wear ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Wear Properties ◽  
Cast Irons ◽  
Friction Coefficients ◽  
Friction Tester ◽  
Friction And Wear Properties ◽  
Steel Balls

In this study, Fe-2.0Si-4.6C (mass%) gray cast iron disk specimens with three different matrix phases were coated with MoS2 using pressure spraying, and the friction and wear properties of the specimens were investigated against AISI52100 steel and polytetrafluoroethylene balls under the lubrication of oil using an Optimol SRV friction tester. When AISI52100 steel balls were used as the paired material, all of the MoS2-coated gray cast iron specimens showed lower friction coefficients and higher wear resistance than the non-coated disk specimens. On the other hand, MoS2-coated gray cast iron specimens exhibited higher friction coefficients than non-coated disk specimens for the most part, when polytetrafluoroethylene balls were used as the paired material.

Friction and wear properties of Fe–Si intermetallic compounds in ethyl alcohol

2012 ◽  
Vol 20 (1) ◽  
pp. 68-75 ◽  
Author(s):  
T. Murakami ◽  
Y. Hibi ◽  
H. Mano ◽  
K. Matsuzaki ◽  
H. Inui
Keyword(s):  
Intermetallic Compounds ◽  
Ethyl Alcohol ◽  
Friction And Wear ◽  
Wear Properties ◽  
Friction And Wear Properties
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