Corrosion Resistance in Highly Concentrated Hydrochloric Acid and Creep Rupture Strength of a Ti-Pd Alloy for a Supercritical Water Oxidation Reactor
Source abstract
Abstract
The corrosion resistance and the creep rupture strength of a Ti-Pd alloy were evaluated for the material’s application containing a highly concentrated chloride feed in a supercritical water oxidation reactor. Using autoclaves, corrosion tests of the Ti-Pd alloy were conducted in 20% hydrochloric acid (HCl) with oxygen. Corrosion tests consisted of short-term tests to evaluate the temperature dependency for 1 h to 31 h, and long-term tests to evaluate stability for 82 h to 422 h. The Ti-Pd alloy had good corrosion resistance at 400°C and 600°C, even with 20% HCl, but it suffered severe wet corrosion at 250°C and considerable oxidation corrosion around 650°C. The creep rupture strength of the Ti-Pd alloy at 600°C was as low as 8.04 MPa at 10,000 h.
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Research context
OpenAlex topics: Subcritical and Supercritical Water Processes · Advanced materials and composites · Concrete and Cement Materials Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
*Research and Development Department, Research and Development Center, Organo Co., 4-9, Kawagishi 1-chome, Toda, Saitama 335-0015, Japan.
**Compact System Engineering Team, Research Center for Compact Chemical Process, National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1, Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan.
***Department of Ecological Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan.
References (25)
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