Environment-Induced Degradation and Crack-Growth Studies of Candidate Target Materials: AAA Task-4 Quarterly (June 1 – August 31, 2001) Report

Authors

Ajit K. Roy, University of Nevada, Las VegasFollow
Brendan O'Toole, University of Nevada, Las VegasFollow

Document Type

Report

Publication Date

9-1-2001

Publisher

University of Nevada, Las Vegas

Publisher Location

Las Vegas (Nev.)

First page number:

1

Last page number:

4

Abstract

The subject task entitled “Hydrogen-Induced Embrittlement of Candidate Target Materials for Applications in Spallation-Neutron-Target Systems” had commenced during the quarter ending on August 31, 2001. A research account has been established, contracts for both faculty and students have been prepared, and efforts are well underway to embark on the related research activities, as proposed.

As the title of this project implies, the primary objective of this task is to evaluate the effect of hydrogen on environment-assisted cracking of candidate materials for applications in spallationneutron- target (SNT) systems such as accelerator production of tritium (APT) and accelerator transmutation of waste (ATW). The materials selected for evaluation and characterization are martensitic stainless steels including HT-9, EP 823 and 422. The susceptibility to stress corrosion cracking (SCC) and hydrogen embrittlement (HE) of these alloys will be evaluated in environments of interest using tensile specimens under constant load and slow-strain-rate (SSR) conditions. The extent and morphology of cracking of these alloys will further be evaluated by optical microscopy and scanning electron microscopy (SEM). The concentration of hydrogen resulting from cathodic charging will be analyzed by secondary ion mass spectrometry (SIMS).

Keywords

Hydrogen; Martensitic stainless steel – Cracking; Materials – Cracking; Metals — Effect of high temperatures on; Particle accelerators; Radioactive wastes — Transmutation; Spallation (Nuclear physics); Stress corrosion; Tritium

Controlled Subject

Hydrogen; Materials--Cracking; Particle accelerators

Disciplines

Materials Science and Engineering | Metallurgy | Nuclear Engineering | Oil, Gas, and Energy

File Format

pdf

File Size

69 KB

Language

English

Rights

IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Repository Citation

Roy, A. K., O'Toole, B. (2001). Environment-Induced Degradation and Crack-Growth Studies of Candidate Target Materials: AAA Task-4 Quarterly (June 1 – August 31, 2001) Report. 1-4.
Available at: https://digitalscholarship.unlv.edu/hrc_trp_sciences_materials/41