Materials Performance

DEC 2016

Materials Performance is the world's most widely circulated magazine dedicated to corrosion prevention and control. MP provides information about the latest corrosion control technologies and practical applications for every industry and environment.

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15 NACE INTERNATIONAL: VOL. 55, NO. 12 MATERIALS PERFORMANCE DECEMBER 2016 Up to 39% BETTER for Less +1 800 942 0595 mitigator@matcor.com matcor.com/39 We have proof. Download the independent report at matcor.com/39 FREE COMPARISON REPORT Performs Better than Copper and Zinc Ribbon Lower Cost Easy to Install AC MITIGATION SOLUTIONS The MITIGATOR ® Engineered AC Mitigation System Glass projects will include studies on the rate-limiting mechanisms of glass corrosion, the composition and environmental effects on the glass corrosion rate, and rational glass design. Image courtesy of Gerald Frankel, The Ohio State University. physical and chemical makeup of the glass-solution interface developed in long- term corrosion; the solution composition and solute activity where water goes from solution to solute; the rates of glass com- ponent reactions at the interface for refer- ence glass; the inf luence of glass and solu- tion composition on interface structure and the resulting glass corrosion rate; and the development of a model tool for use in designing waste glasses with improved long-term performance. Frankel also expects synerg y between the team of experts examining glass cor- rosion and those looking at metals and ceramics, thereby giving researchers a better chance of understanding the com- plex behavior of various waste forms. Other topics for the ceramics team include the study of radionuclide trans- port behavior by atomistic computation; attaining a mechanistic understanding of radionuclide releases; developing an arti- f icial neuron network for new waste form composition; and examining interfacial phenomena across solid-solid and solid- liquid interfaces. Finally, researchers studying metal corrosion are expected to focus on the development of new corrosion-resistant alloys (CR As) by looking at high-entropy alloys, bulk metallic glasses, and all other alloys with high concentrations of benef i- cial alloying elements, Frankel says. "This project will make use of multi- scale computational modeling and exper- imental tools for computational materials design, which has never been done for CR As," Frankel says. The metals team also plans to launch a study on atmospheric pitting and stress corrosion cracking issues seen within existing CR As. "We want to evaluate the mechanisms of pit formation and stabilization on salt- contaminated CR As during atmospheric exposure," Frankel says. On the whole, the DOE program back- ing this WastePD research includes 36 nationwide EFRC facilities, with a goal to achieve fundamental advances in science to enable safe, eff icient, and cost-effective waste cleanup and storage technologies, the agency says. The new centers announced in July 2016, including WastePD, were competi- tively selected based on a merit review process. Awards ranged from $2 million to $4 million per year for each center, for up to four f iscal years. The awards are subject to available appropriations and the outcome of a formal progress review in the second year of the four-year period of performance. Since the establishment of the EFRC program by the DOE in 2009, the EFRCs have produced over 7,500 peer-reviewed scientif ic publications and have helped lay the scientif ic groundwork for funda- mental advances in solar energ y, electri- cal energ y storage, carbon capture and sequestration, materials and chemistry by design, biosciences, and materials in extreme environments, the agency says. In 2014, DOE created 32 EFRCs nation- wide before adding four more in 2016, including WastePD. "The four new EFRCs announced lay the foundation for continuing success in our environmental cleanup efforts, which depend upon advances in innovative sci- ence and research technologies," says U.S. Energ y Secretary Ernest Moniz. "As one of America's most successful use-inspired basic research initiatives, the EFRC pro- gram can be counted on to further dis- coveries that will greatly enhance cleanup efforts and accomplish one of DOE's core missions." Contact Gerald Frankel , The Ohio State University—e-mail: frankel .10@osu.edu. Information on corrosion control and prevention —Ben DuBose

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