Predicting the depletion of chromium in two high temperature Ni alloys

R. Pillai; H. Ackermann; K. Lucka

doi:10.1016/j.corsci.2012.11.040

Predicting the depletion of chromium in two high temperature Ni alloys

R. Pillai, H. Ackermann, K. Lucka

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The oxidation resistance of the high temperature Ni-Cr alloys alloy 601 and alloy 602 CA was studied. Based on microanalysis data from cyclic oxidation experiments performed in a burner test rig, the total loss of chromium in the alloy was determined. A numerical analysis using the general diffusion equation was performed to model the mass transport for the observed chromium loss. Chromium depletion profiles were calculated with an effective diffusion coefficient derived from the data of the shortest exposure time. Good agreement was found between the measured and the computed chromium concentration at the alloy-oxide interface for longer exposure.

Original language	English
Pages (from-to)	181-190
Number of pages	10
Journal	Corrosion Science
Volume	69
DOIs	https://doi.org/10.1016/j.corsci.2012.11.040
State	Published - Apr 2013
Externally published	Yes

Keywords

A. Nickel
B. Thermal cycling
C. High temperature corrosion

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10.1016/j.corsci.2012.11.040

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title = "Predicting the depletion of chromium in two high temperature Ni alloys",

abstract = "The oxidation resistance of the high temperature Ni-Cr alloys alloy 601 and alloy 602 CA was studied. Based on microanalysis data from cyclic oxidation experiments performed in a burner test rig, the total loss of chromium in the alloy was determined. A numerical analysis using the general diffusion equation was performed to model the mass transport for the observed chromium loss. Chromium depletion profiles were calculated with an effective diffusion coefficient derived from the data of the shortest exposure time. Good agreement was found between the measured and the computed chromium concentration at the alloy-oxide interface for longer exposure.",

keywords = "A. Nickel, B. Thermal cycling, C. High temperature corrosion",

author = "R. Pillai and H. Ackermann and K. Lucka",

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T1 - Predicting the depletion of chromium in two high temperature Ni alloys

AU - Pillai, R.

AU - Ackermann, H.

AU - Lucka, K.

PY - 2013/4

Y1 - 2013/4

N2 - The oxidation resistance of the high temperature Ni-Cr alloys alloy 601 and alloy 602 CA was studied. Based on microanalysis data from cyclic oxidation experiments performed in a burner test rig, the total loss of chromium in the alloy was determined. A numerical analysis using the general diffusion equation was performed to model the mass transport for the observed chromium loss. Chromium depletion profiles were calculated with an effective diffusion coefficient derived from the data of the shortest exposure time. Good agreement was found between the measured and the computed chromium concentration at the alloy-oxide interface for longer exposure.

AB - The oxidation resistance of the high temperature Ni-Cr alloys alloy 601 and alloy 602 CA was studied. Based on microanalysis data from cyclic oxidation experiments performed in a burner test rig, the total loss of chromium in the alloy was determined. A numerical analysis using the general diffusion equation was performed to model the mass transport for the observed chromium loss. Chromium depletion profiles were calculated with an effective diffusion coefficient derived from the data of the shortest exposure time. Good agreement was found between the measured and the computed chromium concentration at the alloy-oxide interface for longer exposure.

KW - A. Nickel

KW - B. Thermal cycling

KW - C. High temperature corrosion

UR - http://www.scopus.com/inward/record.url?scp=84873750574&partnerID=8YFLogxK

U2 - 10.1016/j.corsci.2012.11.040

DO - 10.1016/j.corsci.2012.11.040

M3 - Article

AN - SCOPUS:84873750574

SN - 0010-938X

VL - 69

SP - 181

EP - 190

JO - Corrosion Science

JF - Corrosion Science

ER -

Predicting the depletion of chromium in two high temperature Ni alloys

Abstract

Keywords

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