0
Research Papers: Friction and Wear

Fabrication of Cu Surface Composite Reinforced by Ni Particles Via Friction Stir Processing: Microstructure and Tribology Behaviors

[+] Author and Article Information
Mohsen Pezeshkian

Advanced Materials Research Center,
Department of Materials Engineering,
Najafabad Branch,
Islamic Azad University,
Najafabad 8514143131, Iran
e-mail: r.m.pezeshkian@gmail.com

Iman Ebrahimzadeh

Advanced Materials Research Center,
Department of Materials Engineering,
Najafabad Branch,
Islamic Azad University,
Najafabad 8514143131, Iran
e-mail: i.ebrahimzadeh@pmt.iaun.ac.ir

Farhad Gharavi

Department of Materials Engineering,
Sirjan Branch,
Islamic Azad University,
Sirjan 78185187, Iran
e-mail: fgharavi@iausirjan.ac.ir

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received November 30, 2016; final manuscript received May 23, 2017; published online August 22, 2017. Assoc. Editor: Robert Wood.

J. Tribol 140(1), 011607 (Aug 22, 2017) (8 pages) Paper No: TRIB-16-1375; doi: 10.1115/1.4037069 History: Received November 30, 2016; Revised May 23, 2017

In the present investigation, friction stir processing (FSP) was used to integrate Ni particles into the surface of copper in order to fabricate a surface composite. Determining an optimized percentage of Ni particles, different dimensions of grooves were machined into the Cu plates. Then, the specimens' grooves were filled by nickel reinforcement particles, and friction stir process was performed on the specimens with tool rotation speed of 800 rpm and traverse speed of 50 mm/min. Optical microscope (OM) and scanning electron microscope (SEM) were used to evaluate the microstructure. Pin-on-disk test was performed to evaluate wear properties using pins manufactured from the FSPed zone. Also, Micromet-Buehler Vickers hardness tester was used to test the FSPed surfaces' microhardness. The results show that the best properties are obtained when using 2 × 2 mm groove. In this situation, microhardness and wear properties were improved as 40% and 60% compared to the substrate, respectively.

Copyright © 2018 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Fig. 1

Optical micrograph of pure copper

Grahic Jump Location
Fig. 2

SEM image of the as-received Ni powder

Grahic Jump Location
Fig. 3

FSP tool pin profile

Grahic Jump Location
Fig. 4

Schematic of FSP: (a) groove, (b) inserting Ni-powder into the groove, (c) closing surface of groove with the tool with no pin, and (d) FSPed Ni in Cu plate

Grahic Jump Location
Fig. 5

Surface area of FSPed zone used in volume fraction equation (FSPed zone)

Grahic Jump Location
Fig. 6

Schematic of the pin used in the wear test

Grahic Jump Location
Fig. 7

Loading test graph to determine wear load test

Grahic Jump Location
Fig. 8

Schematic of FSPed zones taken by an optical microscope

Grahic Jump Location
Fig. 9

Tunnel defect shown in SEM micrograph

Grahic Jump Location
Fig. 10

XRD analysis pattern of substrate, S0, S1, S2, and S3 specimens

Grahic Jump Location
Fig. 11

Large scale of XRD pattern: (a) substrate and S0, and (b) S1, S2, and S3 specimens

Grahic Jump Location
Fig. 12

Microhardness of the substrate, S0, S1, S2, and S3 specimens

Grahic Jump Location
Fig. 13

SEM images of S2 specimen: (a) FSPed zone and (b) SZ

Grahic Jump Location
Fig. 14

EDS result of S2 specimen: (a) point mode of the region marked Fig. 13(b) and (b) map mode of SZ of S2 specimen

Grahic Jump Location
Fig. 15

Decreasing weight of specimens versus distance in the wear test

Grahic Jump Location
Fig. 16

Worn surface of S2 specimen pin: (a) 25× and (b) 700×

Grahic Jump Location
Fig. 17

Variation of friction coefficient in specimens per distance: (a) pure copper, (b) S0, (c) S1, (d) S2, and (e) S3

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In