Activities of Chromium in Molten Fe-Cr-C Alloy

Jung Ho Park, Dong Joon Min, Chang Hee Rhee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The activity of chromium in molten Fe-Cr-C alloy was measured at 1 823 K using chemical equilibration technique in the dilute Cr concentration region. It was found that chromium in Fe-Cr-C alloy showed Henrian behavior up to 3 mass% Cr and that the activity coefficient of chromium at infinitely dilute solution in Fe-Cr alloy was 3.90 at 1 823 K. The effects of carbon on the activity coefficient of chromium at infinitely dilute solution in Fe-Cr-C alloy could be expressed as follows; lnγC°r(S) = 1.29-7.09XC at 1 823 K There is little temperature dependence of the activity of chromium at carbon saturated condition. The standard Gibbs energy of mixing for Fe-Cr alloy and Fe-Cr-Csatd alloy was calculated using the Gibbs-Duhem relationship. The results indicated that the affinity between chromium is larger than that of chromium for iron in Fe-Cr alloy. But the affinity between chromium and carbon is increased with increasing carbon.

Original languageEnglish
Pages (from-to)1287-1291
Number of pages5
JournalISIJ International
Volume38
Issue number12
DOIs
Publication statusPublished - 1998 Jan 1

Fingerprint

Chromium
Molten materials
Carbon
Activity coefficients
Gibbs free energy
Iron

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Park, Jung Ho ; Min, Dong Joon ; Rhee, Chang Hee. / Activities of Chromium in Molten Fe-Cr-C Alloy. In: ISIJ International. 1998 ; Vol. 38, No. 12. pp. 1287-1291.
@article{9bfd47e672bb4493b16c9a4ae843be6b,
title = "Activities of Chromium in Molten Fe-Cr-C Alloy",
abstract = "The activity of chromium in molten Fe-Cr-C alloy was measured at 1 823 K using chemical equilibration technique in the dilute Cr concentration region. It was found that chromium in Fe-Cr-C alloy showed Henrian behavior up to 3 mass{\%} Cr and that the activity coefficient of chromium at infinitely dilute solution in Fe-Cr alloy was 3.90 at 1 823 K. The effects of carbon on the activity coefficient of chromium at infinitely dilute solution in Fe-Cr-C alloy could be expressed as follows; lnγC°r(S) = 1.29-7.09XC at 1 823 K There is little temperature dependence of the activity of chromium at carbon saturated condition. The standard Gibbs energy of mixing for Fe-Cr alloy and Fe-Cr-Csatd alloy was calculated using the Gibbs-Duhem relationship. The results indicated that the affinity between chromium is larger than that of chromium for iron in Fe-Cr alloy. But the affinity between chromium and carbon is increased with increasing carbon.",
author = "Park, {Jung Ho} and Min, {Dong Joon} and Rhee, {Chang Hee}",
year = "1998",
month = "1",
day = "1",
doi = "10.2355/isijinternational.38.1287",
language = "English",
volume = "38",
pages = "1287--1291",
journal = "ISIJ International",
issn = "0915-1559",
publisher = "Iron and Steel Institute of Japan",
number = "12",

}

Activities of Chromium in Molten Fe-Cr-C Alloy. / Park, Jung Ho; Min, Dong Joon; Rhee, Chang Hee.

In: ISIJ International, Vol. 38, No. 12, 01.01.1998, p. 1287-1291.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Activities of Chromium in Molten Fe-Cr-C Alloy

AU - Park, Jung Ho

AU - Min, Dong Joon

AU - Rhee, Chang Hee

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The activity of chromium in molten Fe-Cr-C alloy was measured at 1 823 K using chemical equilibration technique in the dilute Cr concentration region. It was found that chromium in Fe-Cr-C alloy showed Henrian behavior up to 3 mass% Cr and that the activity coefficient of chromium at infinitely dilute solution in Fe-Cr alloy was 3.90 at 1 823 K. The effects of carbon on the activity coefficient of chromium at infinitely dilute solution in Fe-Cr-C alloy could be expressed as follows; lnγC°r(S) = 1.29-7.09XC at 1 823 K There is little temperature dependence of the activity of chromium at carbon saturated condition. The standard Gibbs energy of mixing for Fe-Cr alloy and Fe-Cr-Csatd alloy was calculated using the Gibbs-Duhem relationship. The results indicated that the affinity between chromium is larger than that of chromium for iron in Fe-Cr alloy. But the affinity between chromium and carbon is increased with increasing carbon.

AB - The activity of chromium in molten Fe-Cr-C alloy was measured at 1 823 K using chemical equilibration technique in the dilute Cr concentration region. It was found that chromium in Fe-Cr-C alloy showed Henrian behavior up to 3 mass% Cr and that the activity coefficient of chromium at infinitely dilute solution in Fe-Cr alloy was 3.90 at 1 823 K. The effects of carbon on the activity coefficient of chromium at infinitely dilute solution in Fe-Cr-C alloy could be expressed as follows; lnγC°r(S) = 1.29-7.09XC at 1 823 K There is little temperature dependence of the activity of chromium at carbon saturated condition. The standard Gibbs energy of mixing for Fe-Cr alloy and Fe-Cr-Csatd alloy was calculated using the Gibbs-Duhem relationship. The results indicated that the affinity between chromium is larger than that of chromium for iron in Fe-Cr alloy. But the affinity between chromium and carbon is increased with increasing carbon.

UR - http://www.scopus.com/inward/record.url?scp=0001074211&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001074211&partnerID=8YFLogxK

U2 - 10.2355/isijinternational.38.1287

DO - 10.2355/isijinternational.38.1287

M3 - Article

AN - SCOPUS:0001074211

VL - 38

SP - 1287

EP - 1291

JO - ISIJ International

JF - ISIJ International

SN - 0915-1559

IS - 12

ER -