Self-diffusion of the components in the F.C.C. phase of binary solid solutions of the FeNiCr system

Růžičková, Jana; Million, B.

doi:10.1016/0025-5416(81)90086-0

Cited by 85 publications

(18 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Diffusivity in Ni-Cr fcc solid solutions was assessed by Jönsson [9] via the Calphad method. The tracer data for Cr diffusion in pure Ni [10][11][12][13] are shown in Fig. 1(a).…”

Section: Survey Of Literature Datamentioning

confidence: 99%

“…The graph also includes interdiffusion coefficients determined at the terminal composition (0% Cr) from diffusion couple experiments in NiCr [14], and low temperature tracer data obtained recently by SIMS [15]. The data sets by Monma et al [11], Růžičková and Million [13] and Jung et al [14] are seen to follow a common trend; the other data sets are at variance with this trend, and are therefore considered doubtful. Overall, the lowest temperature at which reliable data are available is 950 • C.…”

Section: Survey Of Literature Datamentioning

confidence: 99%

“…Values of ln(D 0 ) and Q are reported in Table 1. [11] 38 Cr [18] 22 Cr [19] 5 Cr [13] 14 Cr [13] 24 Cr [13] 29 Cr [13] 34 Cr [13] 38 Cr [13] 48 Cr [13] 22 Cr [9] 22 Cr This work 400 500 600 700 800 900 1000 1200 1400 obtained from a non-linear fit of Eq. (1).…”

Section: Survey Of Literature Datamentioning

confidence: 99%

“…Tracer data for Cr in binary Ni-Cr alloys are relatively abundant; selected data sets [11,13,[17][18][19] are shown in Fig. 1(b).…”

Section: Survey Of Literature Datamentioning

confidence: 99%

“…However, few studies include multiple compositions, and assessing the effect of composition on diffusivity is made difficult by the dispersion between laboratories. The data by Monma et al [11] and Růžičková and Million [13] are plotted in Fig. 2, along with curves calculated from Jönsson's assessment [9].…”

Section: Survey Of Literature Datamentioning

confidence: 99%

See 4 more Smart Citations

Tracer diffusion of Cr in Ni and Ni-22Cr studied by SIMS

et al. 2018

View full text Add to dashboard Cite

The volume diffusion of Cr in Ni and in Ni-22Cr (at. %) was studied from tracer experiments, using 52 Cr and 54 Cr as tracers, in the temperature range 542-843 • C. Intensity-depth profiles were generated by secondary ion mass spectrometry (SIMS), which allowed data to be obtained at substantially lower temperatures than previously available. Chromium diffusion was found to be slightly slower in Ni-22Cr than in Ni, in agreement with literature data at high temperature. The mobility parameters (ln(D 0) Ni Cr = −1.6±0.3 [cm 2 /s], Q Ni Cr = 260 ± 2 kJ/mol for Cr in Ni, and ln(D 0) Ni−22Cr Cr = −0.3 ± 1.3 [cm 2 /s], Q Ni−22Cr Cr = 279 ± 10 kJ/mol for Cr in Ni-22Cr) are in the lower range of those obtained by previous investigators in similar alloys. The present results indicate that the vacancy-solute exchange mechanism in effect at high temperature does not change significantly at least down to 542 • C.

show abstract

“…Diffusivity in Ni-Cr fcc solid solutions was assessed by Jönsson [9] via the Calphad method. The tracer data for Cr diffusion in pure Ni [10][11][12][13] are shown in Fig. 1(a).…”

Section: Survey Of Literature Datamentioning

confidence: 99%

Section: Survey Of Literature Datamentioning

confidence: 99%

Section: Survey Of Literature Datamentioning

confidence: 99%

“…Tracer data for Cr in binary Ni-Cr alloys are relatively abundant; selected data sets [11,13,[17][18][19] are shown in Fig. 1(b).…”

Section: Survey Of Literature Datamentioning

confidence: 99%

Section: Survey Of Literature Datamentioning

confidence: 99%

See 3 more Smart Citations

Tracer diffusion of Cr in Ni and Ni-22Cr studied by SIMS

et al. 2018

View full text Add to dashboard Cite

show abstract

Early Material Damage in Equimolar CrMnFeCoNi in Mixed Oxidizing/Sulfiding Hot Gas Atmosphere

et al. 2022

View full text Add to dashboard Cite

The challenges to use more varied fuels at medium and high temperatures above 500 °C need to be addressed by tuning the materials toward a better resistance against increased corrosion. As a first step the corrosion processes need to be better understood, especially in the case of the unavoidable and highly corrosive sulfur‐based gases. Herein, oxidation/sulfidation of an equimolar CrMnFeCoNi high‐entropy alloy is studied at an early stage after hot gas exposure at 600 °C for 6 h in 0.5% SO2 and 99.5% Ar. The oxidation process is studied by means of X‐ray diffraction, scanning and transmission electron microscopy, and supported by thermodynamic calculations. It is found that the sulfur does not enter the bulk material but interacts mainly with the fast‐diffusing manganese at grain boundary triple junctions at the alloy surface. Submicrometer scaled Cr–S–O‐rich phases close to the grain boundaries complete the sulfur‐based phase formation. The grains are covered in different Fe‐, Mn‐, and Cr‐based spinels and other oxides.

show abstract

Reactive Mass Transport during the Aluminization of Rene‐80

Wierzba

Tkacz–Śmiech

Nowotnik

2013

Chemical Vapor Deposition

View full text Add to dashboard Cite

A bi-velocity method is used to simulate the element-concentration evolution in the diffusion zone during the aluminization of a Rene-80 nickel-based superalloy. The basis of the method and the detailed calculations are presented. The model enables the prediction of the formation of intermetallic phases and multi-phase layers. The entropy-production rate can also be calculated, and it is shown that it might serve as a basis to indicate the interphases. The proposed model is applied to model the diffusion in a ternary Al-Cr-Ni system. The results of the calculations are compared with experimental element-concentration profiles, measured for the Rene-80 alloy subjected to aluminization by CVD.

show abstract

Self-diffusion of the components in the F.C.C. phase of binary solid solutions of the FeNiCr system

Cited by 85 publications

References 15 publications

Tracer diffusion of Cr in Ni and Ni-22Cr studied by SIMS

Tracer diffusion of Cr in Ni and Ni-22Cr studied by SIMS

Early Material Damage in Equimolar CrMnFeCoNi in Mixed Oxidizing/Sulfiding Hot Gas Atmosphere

Reactive Mass Transport during the Aluminization of Rene‐80

Contact Info

Product

Resources

About