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Title: Enhancement of bronze alloy surface properties by FSP second-phase particle incorporation

Abstract

This study presents results of an experimental study to evaluate friction stir processing (FSP) with and without hard second-phase particle incorporation as a means to enhance surface properties and wear performance of C86300 manganese bronze alloy. FSP of flat bronze alloy specimens was conducted with hardened H-13 tool steel to create a 3-mm-thick processed surface layer. The process was also used to incorporate B 4C particles, thereby creating a metal-matrix composite layer on the alloy surface. FSP alone was observed to produce substantial reduction in grain size (from an initial value of 350 mu m to 1-5 μm). FSP without particle incorporation resulted in modest surface hardening due to grain refinement and dispersion hardening. Under lubricated contact in block-on-ring testing with a hardened steel counter face, FSP produced substantial reduction (about 3X) in bronze wear after polishing of processing surface roughening. FSP with hard B 4C second-phase particle incorporation further reduced wear by up to 20X. The improvement in wear behavior is attributed to grain refinement and load shielding by second-phase particles, as determined by wear mechanism analysis.

Authors:
 [1];  [1]
  1. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1371920
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Wear
Additional Journal Information:
Journal Volume: 376-377; Journal Issue: PB; Journal ID: ISSN 0043-1648
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; FSP; friction; manganese bronze; surface modification; wear

Citation Formats

Ajayi, O. O., and Lorenzo-Martin, Cinta. Enhancement of bronze alloy surface properties by FSP second-phase particle incorporation. United States: N. p., 2017. Web. doi:10.1016/j.wear.2017.01.059.
Ajayi, O. O., & Lorenzo-Martin, Cinta. Enhancement of bronze alloy surface properties by FSP second-phase particle incorporation. United States. doi:10.1016/j.wear.2017.01.059.
Ajayi, O. O., and Lorenzo-Martin, Cinta. Thu . "Enhancement of bronze alloy surface properties by FSP second-phase particle incorporation". United States. doi:10.1016/j.wear.2017.01.059. https://www.osti.gov/servlets/purl/1371920.
@article{osti_1371920,
title = {Enhancement of bronze alloy surface properties by FSP second-phase particle incorporation},
author = {Ajayi, O. O. and Lorenzo-Martin, Cinta},
abstractNote = {This study presents results of an experimental study to evaluate friction stir processing (FSP) with and without hard second-phase particle incorporation as a means to enhance surface properties and wear performance of C86300 manganese bronze alloy. FSP of flat bronze alloy specimens was conducted with hardened H-13 tool steel to create a 3-mm-thick processed surface layer. The process was also used to incorporate B4C particles, thereby creating a metal-matrix composite layer on the alloy surface. FSP alone was observed to produce substantial reduction in grain size (from an initial value of 350 mu m to 1-5 μm). FSP without particle incorporation resulted in modest surface hardening due to grain refinement and dispersion hardening. Under lubricated contact in block-on-ring testing with a hardened steel counter face, FSP produced substantial reduction (about 3X) in bronze wear after polishing of processing surface roughening. FSP with hard B4C second-phase particle incorporation further reduced wear by up to 20X. The improvement in wear behavior is attributed to grain refinement and load shielding by second-phase particles, as determined by wear mechanism analysis.},
doi = {10.1016/j.wear.2017.01.059},
journal = {Wear},
number = PB,
volume = 376-377,
place = {United States},
year = {Thu Jun 15 00:00:00 EDT 2017},
month = {Thu Jun 15 00:00:00 EDT 2017}
}

Journal Article:
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Cited by: 1 work
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