NACE AWARD 2018
2018 NACE A.B. Campbell Award
Paper describing Dr. Cao / Dr. Anderko collaboration
This award description and picture of Dr. Cao has been taken in its entirety from NACE 2018 Conference and Expo Final Program, on the NACE website at www.nace.org
The A.B. Campbell Award is given in recognition of the most outstanding paper by a young author published in Materials Performance or CORROSION each year. The author must have been no older than 35 years when the manuscript was submitted for publication.
The 2018 A.B. Campbell Award recipient is Dr. Liu Cao.
The paper is based on original research conducted by the nominee as part of a joint industry project (JIP) with the aim of developing a model-based approach to predicting the limits of performance of corrosion-resistant alloys in sour environments. There were three intertwined aspects of the JIP: localized corrosion experiments, stress corrosion cracking experiments, and modeling of critical
parameters for localized corrosion.
The experimental work on localized corrosion was conducted fully by Cao. He generated the repassivation potential and corrosion potential, which were then parametrized by Andre Anderko at OLI Systems, who did the modeling work. Then the model predictions were compared to experimental data that were not included in model parameterization in order to validate the model. The validation was performed by Cao.
The paper cited for the A.B. Campbell award nomination pertains to the generation of repassivation potential in HS environments of a range of Fe-Ni-Cr-Mo alloys.
Cao performed the following steps in this study: (1) Developed a suitable reference electrode, (2) verified that the oxidation of H2S did not interfere with measured repassivation potentials, (3) verified the reproducibility of repassivation potentials, and (4) converted the measured potentials to standard hydrogen scale for comparison to model.
This is the first time in the literature that such extensive measurements of repassivation potentials for corrosion-resistant alloys (CRAs) in sour environments are reported. This constitutes a significant contribution to the literature. Cao also provided significant input to the modeling of repassivation potential. He led these aspects of the research and ensured that the model agreed with experimental data reasonably well.
The resulting paper was essentially completely written by the nominee, with only the model discussion done by one of the coauthors, Anderko. The other senior authors participated in concept development, planning and funding of the study, and in internal consistency checks and editorial review. A measure of the high quality of the paper was that it was essentially accepted as submitted within a very short time after initial submittal.
"Locallized Corrosion of Corrosion Resistant Alloys in IAS-containing Environments," CORROSION. May 2016, vol. 72. No. 5. pp. 636-654.
Dr. Liu Cao is With DNV GL, Dublin, Ohio, USA.