Surface Treatment for Improving Sulfidation Resistance of Fossil Power Systems

Sikka, V.K.

Oak Ridge National Laboratory

关键词: Modifications;    Combustion;    Alloys;    Surface Treatments;    Sulfidation;   

DOI  :  10.2172/777680
RP-ID  :  C/ORNL92-0143
RP-ID  :  AC05-96OR22464
RP-ID  :  777680

美国|英语

来源: UNT Digital Library

【 摘 要 】

The purpose of the cooperative research and development agreement (CRADA) between ABB Combustion Engineering, Inc. and the Oak Ridge National Laboratory (ORNL) was to develop improved, longer life, and corrosion resistance surfaces for fossil power system components for use primarily in sulfidizing environments. Four surface protection techniques were to be explored. These included diffusion process, weld overlay, hot-isostatic processing, and various spraying methods. The work was to focus on Fe{sub 3} Al-based iron aluminide to increase the component life. The successful completion of the CRADA would have required the achievement of the following four goals: (1) fabrication development, (2) characterization and possibly modification of the alloy to optimize its manufacturability and environmental resistance, (3) testing and evaluation of the specimens, and (4) fabrication and testing of prototype parts. Because of lack of active participation from the participant, this CRADA did not achieve all of its goals and was terminated prematurely. Work carried out at ORNL on the CRADA is described in this report.