The Gordon Research Conference (GRC) on High Temperature Corrosion has the history of more than 70 years. High temperature corrosion has been important issues in metallic and ceramic materials for energy conversion and chemical industrial processes. Issues related to energy and environment are rapidly evolving in recent years. The materials are exposed to extremely harsh condition which is required for higher efficiency processes. The GRC develops the new frontier of the science and technology in the field. The speakers of lectures are all invited, who are chosen for their expertise, recent research advances, and/or novelty of approach. The lectures are provided with extensive time for discussion in morning and evening, and the afternoon is for poster sessions and the free time for individual activity. All conference delegates are encouraged to present posters describing their own work. The posters are displayed in the area where most of the socializing occurs. The number of participants is limited to be about 150. All stay in college dormitories, have cafeteria-style meals together, and socialize during the free periods in the afternoon and the late evening. This environment provides an international and diverse forum for scientific discussion, to develop innovative ideas concerning the conference topic. Active graduate students and young researchers are encouraged to participate. The GRC offers them the ready access to the leaders in the field from around the world. The 2013 Gordon Research Conference on High Temperature Corrosion focuses on material performance at harsh service conditions from view point of fundamental and application. The topics are mass and charge transport in thermally grown oxides, subscale depletion processes, lifetime modeling/prediction, mechanical-chemical effects in oxidation, corrosion of materials for advanced steam power generation and corrosion- resistant coatings. Effects of water vapor will be explored in many of the presentations.