DOI: 10.1002/maco.19970480706. Internal chlorination of Ni‐based alloys and its relation to volatilization corrosion

Internal chlorination of Ni‐based alloys and its relation to volatilization corrosion

10.1002/maco.19970480706

Crossref journal-article

Wiley

Materials and Corrosion (311)

Abstract

AbstractThe kinetics of internal chlorination of Ni‐based alloys between 400°C and 700°C were investigated by optical and scanning electron microscopy. Internal chlorination of Ni‐4Cr and Ni‐4Cr‐0.5Ce alloy occurred by formation of solid precipitates such as CrCl2, and CeCl3 which are thermodynamically stable and have low vapor pressures at the temperatures within the alloy matrix. In the lower temperature range, the kinetics of internal chlorination nearly followed a parabolic rate law. The degree of internal chlorination increased with increasing temperature. In the higher temperature range, the internal attack was accompanied by the consumption of the alloy by volatilization. When the rate of internal chlorination equaled the rate of overall metal consumption, the depth of the internal chlorination zone would approach a steady state value. At high temperatures, where vaporization was predominant, the steady state depth of internal attack was even smaller than that at lower temperature. When an alloy specimen was subject to little volatilization, it showed more internal attack than when it was not, and vice versa.

Bibliography

Tu, J. P., Li, Z. Z., & Mao, Z. Y. (1997). Internal chlorination of Niâbased alloys and its relation to volatilization corrosion. Materials and Corrosion, 48(7), 441â446. Portico.

Authors 3

J. P. Tu (first)
Z. Z. Li (additional)
Z. Y. Mao (additional)

References 20 Referenced 7

10.1007/BF02667511
10.5006/1.3585199
10.5006/1.3585177
10.5006/0010-9312-25.12.502
10.1002/maco.19890390902
S.Thongtem M. J.McNallan G. Y.Lai: Corrosion/86 Paper Number 372 Houston Texas 1986.
10.1007/BF02661276
10.5006/1.3583974
P.Elliott C. J.Tyreman R.Prescott:J. Metal(1985)20. (10.1007/BF03259691)
10.1007/BF02654376
{'key': 'e_1_2_1_12_2', 'first-page': '378', 'volume-title': 'Metallurgical Thermochemistry', 'author': 'Kubaschewski O.', 'year': '1977'} / Metallurgical Thermochemistry by Kubaschewski O. (1977)
10.1002/maco.19700211111
10.5006/0010-9312-21.12.382
10.1016/0001-6160(64)90036-7
10.1007/BF02656595
10.1007/BF02642309
10.1149/1.2424115
10.1007/BF00665268
{'key': 'e_1_2_1_20_2', 'first-page': '645', 'volume': '1', 'author': 'Hancock P.', 'year': '1978', 'journal-title': 'Symposium on Halide Chemistry, Electrochem. Soc.'} / Symposium on Halide Chemistry, Electrochem. Soc. by Hancock P. (1978)
JiangpingTu: „High temperature of Ni‐Cr alloys in flowing chlorine‐water vapor environnments”︁ Corrosion (in press).

Dates

Type	When
Created	20 years, 3 months ago (May 29, 2005, 4:58 a.m.)
Deposited	1 year, 10 months ago (Oct. 28, 2023, 1:58 a.m.)
Indexed	1 month, 3 weeks ago (July 9, 2025, 6:57 p.m.)
Issued	28 years, 2 months ago (July 1, 1997)
Published	28 years, 2 months ago (July 1, 1997)
Published Online	20 years, 11 months ago (Oct. 1, 2004)
Published Print	28 years, 2 months ago (July 1, 1997)

Funders 0

None

BibTeX

@article{Tu_1997, title={Internal chlorination of Ni‐based alloys and its relation to volatilization corrosion}, volume={48}, ISSN={1521-4176}, url={http://dx.doi.org/10.1002/maco.19970480706}, DOI={10.1002/maco.19970480706}, number={7}, journal={Materials and Corrosion}, publisher={Wiley}, author={Tu, J. P. and Li, Z. Z. and Mao, Z. Y.}, year={1997}, month=jul, pages={441–446} }

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