Document Type

Technical Report

Publication Date



Metallurgical and Materials Engineering, University of Nevada, Reno


This report encompasses the work done for second quarter in accordance to cooperative agreement of UCCSN for the Task 019 “Subsurface Corrosion Research on Rock Bolt System, Perforated SS Sheets and Steel Sets for the Yucca Mountain Repository”, the objective of which was proposed earlier, to conduct corrosion research and predict the durability of rock-bolts and other underground metallic roof supports. We have recently started working on oxidation tests using Thermogravimetric Analyzer, stress corrosion cracking/hydrogen embrittlement studies on rock bolts, other support materials including bench mark materials.

In this quarterly report we will discuss “Dry” oxidation of steels and other supporting materials that are susceptible to oxidation under the repository conditions. We initiated these studies to observe the rate of change in sample mass as a function of temperature and time using a Thermogravimetric analysis (TGA). In addition we started sample preparation of the Swellex rock bolts, and performed oxidation studies and electromechanical tests on baseline materials, namely, alloy C-22, and YM rock bolts.


Nevada – Yucca Mountain; Radioactive waste repositories; Rock bolts -- Corrosion


Geotechnical Engineering | Materials Science and Engineering | Metallurgy | Structural Materials




Task ORD-FY04-019
Document No: SIP-UNR-040
DOE/UCCSN Cooperative Agreement Number DE-FC28-04RW12232