Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Mechanical properties of Solid Solution-Strengthened CGI
Jönköping University, Sweden.
Jönköping University, Sweden.
RISE, Swerea, SWECAST.
Scania AB, Sweden.
Show others and affiliations
2016 (English)In: International Journal of Cast Metals Research, ISSN 1364-0461, E-ISSN 1743-1336, Vol. 29, no 1-2, p. 98-105Article in journal (Refereed) Published
Abstract [en]

Despite the increased usage of pearlitic compacted graphite iron (CGI) in heavy vehicle engines, poor machinability of this material remains as one of the main technical challenges as compared to conventional lamellar iron. To minimise the machining cost, it is believed that solution-strengthened CGI material with a ferritic matrix could bring an advantage. The present study focuses on the effect of solution strengthening of silicon and section thickness on tensile, microstructure and hardness properties of high-Si CGI materials. To do so, plates with thicknesses from 7 to 75 mm were cast with three different target silicon levels 3.7, 4.0 and 4.5 wt%. For all Si levels, the microstructure was ferritic with a very limited pearlite content. The highest nodularity was observed in 7 and 15 mm plate sections, respectively, however, it decreased as the plate thickness increased. Moreover, increasing Si content to 4.5 wt% resulted in substantial improvement up to 65 and 50% in proof stress and tensile strength, respectively, as compared to pearlitic CGI. However, adding up Si content to such a high level remarkably deteriorated elongation to failure. For each Si level, results showed that the Young’s modulus and tensile strength are fairly independent of the plate thickness (30–75 mm), however, a significant increase was observed for thin section plates, particularly 7 mm plate due to the higher nodularity in these sections. 

Place, publisher, year, edition, pages
Taylor and Francis Ltd. , 2016. Vol. 29, no 1-2, p. 98-105
Keywords [en]
Compacted graphite iron, Ferrite, High-Si ferritic CGI, Mechanical properties, Solid solution strengthening, Ferritic steel, Graphite, Iron, Microstructure, Pearlite, Silicon, Solid solutions, Elongation to failure, Ferritic, Mechanical properties of solids, Section thickness, Solution strengthening, Technical challenges, Tensile strength
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-40966DOI: 10.1080/13640461.2015.1106781Scopus ID: 2-s2.0-84978389185OAI: oai:DiVA.org:ri-40966DiVA, id: diva2:1376925
Available from: 2019-12-10 Created: 2019-12-10 Last updated: 2020-12-01Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus
By organisation
SWECAST
In the same journal
International Journal of Cast Metals Research
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 43 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf