Microstructure, Mechanical Properties, and Unlubricated Sliding Wear Behavior of Air-Cooled MnSiCrB Cast Steels

2010 ◽  
Vol 20 (6) ◽  
pp. 952-959
Author(s):  
Kaishuang Luo ◽  
Bingzhe Bai
Keyword(s):  
Mechanical Properties ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Cast Steels

Microstructure, Mechanical Properties, and Sliding Wear Behavior of Spark Plasma Sintered Ti-Cu Alloys

2018 ◽  
Vol 49 (12) ◽  
pp. 6147-6160 ◽  
Author(s):  
Rui Dong ◽  
Weiwei Zhu ◽  
Cancan Zhao ◽  
Yiwen Zhang ◽  
Fuzeng Ren
Keyword(s):  
Mechanical Properties ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Cu Alloys ◽  
Spark Plasma

scholarly journals Studying The Effect of Reinforcing by Sicp on The Dry Sliding Wear Behavior and Mechanical Properties of AL- 4% CU Matrix Alloy

2013 ◽  
Vol 6 (2) ◽  
pp. 139-153
Author(s):  
Israa .A.K
Keyword(s):  
Mechanical Properties ◽  
Wear Rate ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Base Material ◽  
Weight Percent ◽  
Dry Sliding Wear ◽  
Dry Sliding ◽  
Sliding Velocity ◽  
Cu Alloy

This research is devoted to study the effect of addition of different weight percent from SiCp ( 2, 4, 6, 8 ) to Al– 4 Cu alloy which have been fabricated by liquid metallurgy method on the dry sliding wear behavior and mechanical properties. Wear characteristics of Al–SiC composites have been investigated under dry sliding conditions and compared with base alloy. Dry sliding wear tests have been carried out using pin-on-disk wear test under normal applied loads 5, 10, 15 and 20 N and at different sliding velocity of (2.7, 3.7, 4.7) m/sec. It was also observed that the wear rate varies linearly with increases normal applied load but lower in composites as compared to the base material. The wear mechanism appears to be oxidative for both Al – Cu alloy and composites under the given conditions of load and sliding velocity as indicated by optical microscopic of the worn surfaces. Further, it was found from the experimentation that the wear rate decreases linearly with increasing weight percent of silicon carbide. The best results have been obtained at 8 % wt SiC . We also observed that the yield strength, tensile strength increases with increasing wt% of SiC , but the ductility decreases.

scholarly journals Microstructures, mechanical properties, and grease-lubricated sliding wear behavior of Cu-15Ni-8Sn-0.8Nb alloy with high strength and toughness

Friction ◽  
2020 ◽  
Author(s):  
Jinjuan Cheng ◽  
Mincong Mao ◽  
Xueping Gan ◽  
Qian Lei ◽  
Zhou Li ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Normal Load ◽  
High Strength ◽  
Strengthening Mechanism ◽  
Sliding Velocity ◽  
Wear Properties ◽  
Lubricating Grease ◽  
Lubricated Sliding

Abstract Alloys used as bearings in aircraft landing gear are required to reduce friction and wear as well as improve the load-carrying capability due to the increased aircraft weights. Cu-15Ni-8Sn-0.8Nb alloy is well known for possessing good mechanical and wear properties that satisfy such requirements. In this study, the microstructure, mechanical properties, and grease-lubricated sliding wear behavior of Cu-15Ni-8Sn-0.8Nb alloy with 0.8 wt% Nb are investigated. The nanoscale NbNi3 and NbNi2Sn compounds can strengthen the alloy through the Orowan strengthening mechanism. A Stribeck-like curve is plotted to illustrate the relationship among friction coefficient, normal load, and sliding velocity and to analyze the grease-lubricated mechanism. The wear rate increases with normal load and decreases with sliding velocity, except at 2.58 m/s. A wear mechanism map has been developed to exhibit the dominant wear mechanisms under various friction conditions. When the normal load is 700 N and the sliding velocity is 2.58 m/s, a chemical reaction between the lubricating grease and friction pairs occurs, resulting in the failure of lubricating grease and an increase in wear.

Role of Zirconia Filler on Mechanical Properties and Dry Sliding Wear Behavior of Glass/Basalt Hybrid Fabric Reinforced Epoxy Composites

2019 ◽  
Vol 895 ◽  
pp. 200-205
Author(s):  
B.S. Kanthraju ◽  
Bheemappa Suresha ◽  
H.M. Somashekar
Keyword(s):  
Mechanical Properties ◽  
Wear Rate ◽  
Sliding Wear ◽  
Wear Behavior ◽  
Mechanical Test ◽  
Basalt Fiber ◽  
Wear Test ◽  
Specific Wear Rate ◽  
Dry Sliding Wear ◽  
Dry Sliding

This paper presents the effect of zirconia filler on mechanical properties and dry sliding wear of bidirectional hybrid (glass and basalt fiber) fabric reinforced epoxy (G-B/E) composites. Fabrication was done by hand layup method followed by compression molding. The effect of zirconia filler loading on mechanical characteristics like hardness, tensile and flexure of fabricated G-B/E composites were determined according to ASTM standards. Also, wear behavior under dry sliding condition was performed using pin-on-disc machine for different applied normal loads/sliding distance. Experimental results reveal that incorporation of zirconia filler improves the mechanical properties. Further, the wear test results indicated addition of zirconia into G-B/E hybrid fiber composites plays important role on specific wear rate under the tribo-conditions selected for the study. Further, inclusion of zirconia into G-B/E composites shows improved wear resistance and addition of 6 wt. % of zirconia exhibits least specific wear rate compared to other hybrid G-B/E composites. In addition, Scanning electron microscope images of selected mechanical test fractured coupons also have been discussed.

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