Publication detail

Grain Boundary Segregation of Elements of Groups 14 and 15 and its Consequences for Intergranular Cohesion of Ferritic Iron

LEJČEK, P. ŠANDERA, P. HORNÍKOVÁ, J. ŘEHÁK, P. POKLUDA, J.

Original Title

Grain Boundary Segregation of Elements of Groups 14 and 15 and its Consequences for Intergranular Cohesion of Ferritic Iron

English Title

Grain Boundary Segregation of Elements of Groups 14 and 15 and its Consequences for Intergranular Cohesion of Ferritic Iron

Type

journal article

Language

en

Original Abstract

The experimentally determined data—enthalpy and entropy—of the grain boundary segregation of substitutional solutes of 14th and 15th groups of the periodic table, i.e., silicon, phosphorus, tin, and antimony, in a alpha-iron are compared. The consequences of the grain boundary segregation of these elements for the intergranular strengthening or embrittlement are also shown. It is documented that all these solutes except silicon segregate at the grain boundaries interstitially at enhanced temperatures although substitutional segregation is preferred at zero K. Despite some variations, the values of the strengthening/embrittling Gibbs energy of all solutes are nearly linearly dependent on the differences in the sublimation energies of the host and solute.

English abstract

The experimentally determined data—enthalpy and entropy—of the grain boundary segregation of substitutional solutes of 14th and 15th groups of the periodic table, i.e., silicon, phosphorus, tin, and antimony, in a alpha-iron are compared. The consequences of the grain boundary segregation of these elements for the intergranular strengthening or embrittlement are also shown. It is documented that all these solutes except silicon segregate at the grain boundaries interstitially at enhanced temperatures although substitutional segregation is preferred at zero K. Despite some variations, the values of the strengthening/embrittling Gibbs energy of all solutes are nearly linearly dependent on the differences in the sublimation energies of the host and solute.

Keywords

grain boundary; segregation; sublimation energie; ferritic iron

Released

01.05.2017

Pages from

5822

Pages to

5834

Pages count

13

BibTex


@article{BUT134831,
  author="Pavel {Lejček} and Pavel {Šandera} and Jana {Horníková} and Petr {Řehák} and Jaroslav {Pokluda}",
  title="Grain Boundary Segregation of Elements of Groups 14 and 15 and its Consequences for Intergranular Cohesion of Ferritic Iron",
  annote="The   experimentally   determined   data—enthalpy   and   entropy—of   the   grain
boundary  segregation  of  substitutional  solutes  of  14th  and  15th  groups  of  the periodic  table,  i.e.,  silicon,  phosphorus,  tin,  and  antimony,  in a alpha-iron  are  compared.  The  consequences  of  the  grain boundary  segregation  of  these elements for the intergranular strengthening or embrittlement are also shown. It is documented that all these solutes except silicon segregate at the grain boundaries interstitially  at  enhanced  temperatures  although  substitutional  segregation  is preferred at zero K. Despite some variations, the values of the strengthening/embrittling  Gibbs  energy  of  all  solutes  are  nearly  linearly  dependent  on  the differences in the sublimation energies of the host and solute.",
  chapter="134831",
  doi="10.1007/s10853-017-0819-x",
  howpublished="print",
  number="1",
  volume="52",
  year="2017",
  month="may",
  pages="5822--5834",
  type="journal article"
}