Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
The effect of boron addition on precipitation and hot ductility of 1.5Mn-0.1Nb-Ti carbon steels in As-cast condition
RISE - Research Institutes of Sweden, Swerea.
2017 (English)In: Materials Science Forum (Volume 879): Chapter 2: Contributed Papers, 2017, 990-995 p.Conference paper, Published paper (Refereed)
Abstract [en]

Twelve experimental steels with a base composition 1.5wt% Mn, 0.01 wt% V and 0.1 wt% Nb and varying C (0.05, 010 and 0.20 wt%), Ti (20 - 260 ppm) and B (0 - 100 ppm) contents have been systematically examined to quantify the effects of composition on precipitation behavio-ur and hot ductility during simulated continuous casting conditions. Nb-rich precipitates were present in the alloys with 0.10 wt-% C and 0.20 wt-% C. Alloys with 0.05, 010 and 0.20wt% C contained 50 - 100 nm size Ti-Nb carbonitrides. Boron was bound in 20 - 100 nm size boronitrides located in prior austenite grain boundaries. A Gleeble 3800 was used to study hot ductility and strain induced precipitation processes in the alloys. Alloys without B and Ti additions exhibited poor hot ductility at 850°C and 950°C, whereas the 0.05 wt-% C and 0.10 wt-% C alloys showed improved hot ductility (reduction in area 40-50%) by the addition of either >50 ppm B or 250 ppm Ti. The 0.2 wt-% C alloys showed no improvement from B or Ti additions. Examination of fracture surfaces of hot ductility specimens showed that boronitrides were located at prior austenite grain boundaries in alloys containing 80 - 100 ppm of B. Compression-relaxation tests showed that alloying with boron caused a noticeable decrease of the start temperature of straininduced precipitation in the alloys.

Place, publisher, year, edition, pages
2017. 990-995 p.
Keyword [en]
Boron steel, Continuous casting, Hot ductility, Solidification, Strain-induced precipitation, Austenite, Boron, Carbon, Carbon steel, Ductility, Grain boundaries, Manganese, Precipitation (chemical), Titanium alloys, Boron steels, Effect of boron addition, Fracture surfaces, Nb-rich precipitates, Prior austenite grain boundaries, Start temperature, Strain induced precipitation, Strain-induced precipitations, Steel castings
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-29375DOI: 10.4028/www.scientific.net/MSF.879.990Scopus ID: 2-s2.0-85000789380ISBN: 9783035711295 (print)OAI: oai:DiVA.org:ri-29375DiVA: diva2:1095673
Conference
THERMEC 2016. 29 May 2016 through 3 June 2016
Available from: 2017-05-15 Created: 2017-05-15 Last updated: 2017-05-15Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus
By organisation
Swerea
Natural Sciences

Search outside of DiVA

GoogleGoogle Scholar

Altmetric score

CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • 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
v. 2.28.0