Alloying and strain hardening effects in abrasive contacts on iron based alloys

Strain hardening is a widely used effect to reduce wear, hence it can be expedient in tribological contacts. For this work abrasive contacts were simulated in a scratch test at both, two different forces and velocities, aiming for strain hardening effects in various iron based alloys with different...

Full description

Saved in:
Bibliographic Details
Published in:Wear 2018-09, Vol.410-411, p.173-180
Main Authors: Rojacz, H., Premauer, M., Varga, M.
Format: Article
Language:English
Subjects:
Abrasives
Adhesive wear
Alloying effects
Alloying elements
Binary alloys
Chromium base alloys
Computer simulation
Deformation
FeAl intermetallic
Ferrous alloys
Intermetallic compounds
Iron alloys
Iron based alloy
Microhardness
Microstructure
Nanoindentation
Nickel
Parameters
Scanning electron microscopy
Scratch testing
Scratch tests
Statistical analysis
Strain hardening
Ternary alloys
Tribology
Ultrasonic testing
Wear mechanisms
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Strain hardening is a widely used effect to reduce wear, hence it can be expedient in tribological contacts. For this work abrasive contacts were simulated in a scratch test at both, two different forces and velocities, aiming for strain hardening effects in various iron based alloys with different alloying contents. Fe-Cr and Fe-Al binary alloys and Fe-Cr-Ni ternary alloys in a certain range were chosen for investigation - Cr from 10 to 20 wt.- %, Cr and Ni from 10 to 20 wt.- % each and Al from 15 to 25 wt.- %. Strain hardening effects were studied with high resolution scanning electron microscopy, nano-indentation and micro-hardness measurements. Statistical analyses were performed on the influence of 4 chosen parameters: alloying elements and content, and scratch force and velocity. Results show a salient influence of all chosen parameters. Deformed zones increase with higher force; strain hardening can be enhanced with higher velocities at all materials. Fe-Cr-Ni ternary alloys show the most distinct strain hardening effect.
ISSN:0043-1648
1873-2577
DOI:10.1016/j.wear.2018.05.022