Corrosion Behavior of Steels in Supercritical CO<sub>2</sub> for Power Cycle Applications [electronic resource]

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Tác giả:

Ngôn ngữ: eng

Ký hiệu phân loại: 668.971 Technology of other organic products

Thông tin xuất bản: Washington, D.C. : Oak Ridge, Tenn. : United States. Office of the Assistant Secretary of Energy for Fossil Energy ; Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2017

Mô tả vật lý: Size: p. 799-808 : , digital, PDF file.

Bộ sưu tập: Metadata

ID: 268062

 In order to understand issues with corrosion of heat exchanger materials in direct supercritical carbon dioxide (sCO<
 sub>
 2<
 /sub>
 ) power cycles, a series of autoclave exposure experiments and electrochemical experiments have been conducted. Corrosion behaviors of 347H stainless steel and P91 martensitic-ferrtic steel in sCO<
 sub>
 2<
 /sub>
  environment have been compared. In autoclave exposure tests performed at 50�C- 245�C and 80 bar. Mass change measurements, surface characterization, and corrosion product analysis have been conducted to understand the corrosion behavior of steels in sCO<
 sub>
 2<
 /sub>
  containing H<
 sub>
 2<
 /sub>
 O and O<
 sub>
 2<
 /sub>
 . Electrochemical tests performed at room temperature and 50�C, a simulation environment of water condensation phase with dissolved CO<
 sub>
 2<
 /sub>
  was prepared to evaluate the corrosion resistance of materials. From both types of experiments, generally 347H showed higher corrosion resistance than P91.
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