Effect of grain boundary segregation of phoshorus on the Hall-Petch coefficient of ferritic iron

M. Fujihara, N. Nakada, Toshihiro Tsuchiyma, Setsuo Takaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In IF steel without interstitials, the Hall-Petch coefficient (ky) is low as about 100 MPa·μm1/2 but it is enhnced by adding some alloying elements. Author et al. has already reported that a small amount of carbon increases ky greatly while nitrogen does not give influence so much. On the other hand, it is already known that phosphorus has a tendency to segregate at grain boundary of polycrystalline ferritic iron and that phosphorus also gives some influence to ky. However, the effect of carbon is not considered on the evaluation of ky in steels containing phosphorus. In this study, effect of phosphorus on the ky of ferritic iron was investigated by varying the grain size in Ti bearing IF-steel with different amount of phosphorus. Besides, the concentration of phosphorus and carbon at grain boundary was estimated by the grain boundary segregation model proposed by Seah et al. and the interaction between phosphorus and carbon was discussed in connection with the change of ky.

Original languageEnglish
Title of host publicationTHERMEC 2009
Pages3212-3217
Number of pages6
DOIs
Publication statusPublished - Feb 9 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
Duration: Aug 25 2009Aug 29 2009

Publication series

NameMaterials Science Forum
Volume638-642
ISSN (Print)0255-5476

Other

Other6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
CountryGermany
CityBerlin
Period8/25/098/29/09

Fingerprint

Phosphorus
Hall effect
phosphorus
Grain boundaries
Iron
grain boundaries
iron
Steel
Carbon
carbon
steels
Bearings (structural)
Alloying elements
alloying
interstitials
tendencies
Nitrogen
grain size
nitrogen
evaluation

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Fujihara, M., Nakada, N., Tsuchiyma, T., & Takaki, S. (2010). Effect of grain boundary segregation of phoshorus on the Hall-Petch coefficient of ferritic iron. In THERMEC 2009 (pp. 3212-3217). (Materials Science Forum; Vol. 638-642). https://doi.org/10.4028/www.scientific.net/MSF.638-642.3212

Effect of grain boundary segregation of phoshorus on the Hall-Petch coefficient of ferritic iron. / Fujihara, M.; Nakada, N.; Tsuchiyma, Toshihiro; Takaki, Setsuo.

THERMEC 2009. 2010. p. 3212-3217 (Materials Science Forum; Vol. 638-642).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Fujihara, M, Nakada, N, Tsuchiyma, T & Takaki, S 2010, Effect of grain boundary segregation of phoshorus on the Hall-Petch coefficient of ferritic iron. in THERMEC 2009. Materials Science Forum, vol. 638-642, pp. 3212-3217, 6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009, Berlin, Germany, 8/25/09. https://doi.org/10.4028/www.scientific.net/MSF.638-642.3212
Fujihara, M. ; Nakada, N. ; Tsuchiyma, Toshihiro ; Takaki, Setsuo. / Effect of grain boundary segregation of phoshorus on the Hall-Petch coefficient of ferritic iron. THERMEC 2009. 2010. pp. 3212-3217 (Materials Science Forum).
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