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Effect of tin on microstructure and mechanical properties of compacted graphite iron

Lyu, Y. LU orcid ; Sun, Y. ; Liu, S. and Zhao, J. (2015) In International Journal of Cast Metals Research 28(5). p.263-268
Abstract

This experiment investigated the effect of tin in an amount up to 0·121 wt-% on the microstructure and mechanical properties of compacted graphite iron. Graphite and matrix evolution was emphasised with the help of scanning electron microscopy. The results indicate that Sn in experimental range reduces graphite size. Pearlite quantity would increase with the increasing Sn and reaches over 95% when Sn is >0·057 wt-%. Sn helps to narrow the lamellar spacing of pearlite from sorbitic pearlite (320 nm) to troostitic pearlite (83 nm) when Sn increases from 0·003 to 0·057 wt-%. Appropriate Sn addition promotes the tensile strength and impact toughness, and the samples containing 0·057 wt-%Sn perform the highest values of 410·7 MPa and 9·11... (More)

This experiment investigated the effect of tin in an amount up to 0·121 wt-% on the microstructure and mechanical properties of compacted graphite iron. Graphite and matrix evolution was emphasised with the help of scanning electron microscopy. The results indicate that Sn in experimental range reduces graphite size. Pearlite quantity would increase with the increasing Sn and reaches over 95% when Sn is >0·057 wt-%. Sn helps to narrow the lamellar spacing of pearlite from sorbitic pearlite (320 nm) to troostitic pearlite (83 nm) when Sn increases from 0·003 to 0·057 wt-%. Appropriate Sn addition promotes the tensile strength and impact toughness, and the samples containing 0·057 wt-%Sn perform the highest values of 410·7 MPa and 9·11 J cm-2 respectively. Elongation declines with increasing Sn content because of the emergence of more pearlite. Samples containing excessive Sn experience sharp deterioration in mechanical properties due to brittle cementite.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Cementite, Compacted graphite iron, Electron microscopy, Mechanical properties, Microstructure, Pearlite
in
International Journal of Cast Metals Research
volume
28
issue
5
pages
6 pages
publisher
Maney Publishing
external identifiers
  • scopus:84951837834
ISSN
1364-0461
DOI
10.1179/1743133615Y.0000000009
language
English
LU publication?
no
additional info
Publisher Copyright: © 2015 W. S. Maney & Son Ltd.
id
1e29590b-1fb7-4a39-812d-7dccea66bb52
date added to LUP
2021-10-18 21:48:05
date last changed
2022-04-03 21:01:57
@article{1e29590b-1fb7-4a39-812d-7dccea66bb52,
  abstract     = {{<p>This experiment investigated the effect of tin in an amount up to 0·121 wt-% on the microstructure and mechanical properties of compacted graphite iron. Graphite and matrix evolution was emphasised with the help of scanning electron microscopy. The results indicate that Sn in experimental range reduces graphite size. Pearlite quantity would increase with the increasing Sn and reaches over 95% when Sn is &gt;0·057 wt-%. Sn helps to narrow the lamellar spacing of pearlite from sorbitic pearlite (320 nm) to troostitic pearlite (83 nm) when Sn increases from 0·003 to 0·057 wt-%. Appropriate Sn addition promotes the tensile strength and impact toughness, and the samples containing 0·057 wt-%Sn perform the highest values of 410·7 MPa and 9·11 J cm<sup>-2</sup> respectively. Elongation declines with increasing Sn content because of the emergence of more pearlite. Samples containing excessive Sn experience sharp deterioration in mechanical properties due to brittle cementite.</p>}},
  author       = {{Lyu, Y. and Sun, Y. and Liu, S. and Zhao, J.}},
  issn         = {{1364-0461}},
  keywords     = {{Cementite; Compacted graphite iron; Electron microscopy; Mechanical properties; Microstructure; Pearlite}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{263--268}},
  publisher    = {{Maney Publishing}},
  series       = {{International Journal of Cast Metals Research}},
  title        = {{Effect of tin on microstructure and mechanical properties of compacted graphite iron}},
  url          = {{http://dx.doi.org/10.1179/1743133615Y.0000000009}},
  doi          = {{10.1179/1743133615Y.0000000009}},
  volume       = {{28}},
  year         = {{2015}},
}