Characterization of Structural Materials for Nuclear Hydrogen Generation

Authors

Ajit K. Roy, University of Nevada, Las VegasFollow
Radhakrishnan Santhanakrishnan, University of Nevada, Las VegasFollow
Ancila Kaiparambil, University of Nevada, Las VegasFollow

Document Type

Conference Proceeding

Publication Date

11-5-2005

Publication Title

2005 AIChE Annual Meeting and Fall Showcase

Publisher

American Institute of Chemical Engineers

First page number:

7934

Last page number:

7939

Abstract

Generation of hydrogen as an alternate source of energy using nuclear power is creating significant global attention. While different routes are being explored to achieve this goal, the use of thermochemical processes such as a sulfur-iodine (S-I) cycle is a leading technique, which is currently being preferred by the United States Department of Energy. The S-I cycle involves the decomposition of hydroiodic acid at elevated temperatures leading to the formation of hydrogen. A several structural materials have been identified to characterize their metallurgical and corrosion behavior in environments relevant to the nuclear hydrogen generation system. This paper presents the results of stress corrosion cracking, hydrogen embrittlement and localized corrosion studies of a few refractory materials such as Zr702, Zr705, Nb7.5Ta and Nb1Zr. In addition, the results of tensile testing of these materials at ambient and elevated (up to 400oC) temperatures will be included. The metallographic and fractographic data will also be presented in this paper.

Keywords

Hydrogen as fuel; Niobium alloys – Cracking; Niobium alloys – Embrittlement; Nuclear energy; Strains and stresses; Stress corrosion; Zirconium alloys – Cracking; Zirconium alloys – Embrittlement

Disciplines

Materials Science and Engineering | Mechanical Engineering | Mechanics of Materials | Metallurgy | Nuclear Engineering | Oil, Gas, and Energy | Sustainability

Language

English

Permissions

Use Find in Your Library, contact the author, or interlibrary loan to garner a copy of the item. Publisher policy does not allow archiving the final published version. If a post-print (author's peer-reviewed manuscript) is allowed and available, or publisher policy changes, the item will be deposited.

Repository Citation

Roy, A. K., Santhanakrishnan, R., Kaiparambil, A. (2005). Characterization of Structural Materials for Nuclear Hydrogen Generation. 2005 AIChE Annual Meeting and Fall Showcase 7934-7939. American Institute of Chemical Engineers.