Tribological Behavior of Annealed Ni-xFe-yCo Alloys: Effect of Co and Fe Additions-Reference-Cited by-同舟云学术

Tribological Behavior of Annealed Ni-xFe-yCo Alloys: Effect of Co and Fe Additions

Published:2022-11-04 Issue:2 Volume:145 Page:
ISSN:0742-4787
Container-title:Journal of Tribology
language:en
Short-container-title:

Author:

Ntholeng Nthabiseng¹,Mphasha Nthape Percyval²,Bopape Itshepeng Mogaleadi Christinah¹,Ogunmuyiwa Enoch Nifise³,Shongwe Mxolisi Brendon¹

Affiliation:

1. Tshwane University of Technology Department of Chemical, Metallurgical and Materials Engineering, , Pretoria 0001 , South Africa

2. University of the Witwatersrand Academic Development Unit;, School of Chemical and Metallurgical Engineering, , Johannesburg 2025 , South Africa

3. Botswana International University of, Science and Technology Department of Chemical, Materials and Metallurgical Engineering, , Palapye , Botswana

Abstract

Abstract The influence of annealing on the microstructure, mechanical and sliding wear characteristics of Ni-based alloys produced by spark plasma sintering (SPS) was investigated. As-sintered alloys had a lamellar-like microstructure consisting of (γ′)-FeNi3 and γ-(NiFe) phases blended together. Lower Co contents (i.e., 30, 35 wt%) led to the formation of poorly bonded coarse γ precipitate islands. Annealed Ni-5Fe-45Co alloy exhibited the most excellent wear performance with the lowest coefficients of friction (0.142 ± 0.05) and wear-rate (0.3 ± 0.02 × 10−4 mm3/Nm). Annealing resulted in alloys with good strength-ductility combinations due to appreciable γ′ precipitation enhancement.

Publisher

ASME International

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering,Mechanics of Materials

Link

https://asmedigitalcollection.asme.org/tribology/article-pdf/145/2/021703/6938430/trib_145_2_021703.pdf

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