Accession Number:

ADA229229

Title:

Aluminum Alloys for Cryogenic Tanks: Oxygen Compatibility. Volume 1

Descriptive Note:

Interim rept. Nov 1988-Jun 1990

Corporate Author:

NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO

Report Date:

1990-09-01

Pagination or Media Count:

192.0

Abstract:

In Part I of this program, Al-Li alloys 8090-T3 and 2090-T81 and Al alloy 2219 tempers T851, T37 were tested for compatibility with liquid oxygen using pressurized mechanical-impact apparatuses at two NASA laboratories, Marshall Space Flight Center MSFC and White Sands Test Facility WSTF. Specimens and data from tests at Santa Susana Field Laboratory SSFL, Rocketdyne, on alloy 2090-T81 were supplied by ALCOA. Pressurized mechanical- impact data on alloy WL049-T351 were produced by WSTF. In addition, WSTF conducted open-cup mechanical-impact and promoted-combustion tests on all alloys. Reactions occurred in some specimens of all alloys during pressurized mechanical-impact tests at MSFC. There were no reactions during similar tests at WSTF and SSFL. The reactions at MSFC are not attributed to specimen contamination. This interim report analyzes the ignitions found in the MSFG pressurized mechanical-impact tests, compares the results and test methodologies of both MSFC and WSTF facilities since each laboratory is producing test data that are apparently divergent, and addresses the current test standard document NASA NHB 8060.1B as it pertains to this study.

Subject Categories:

  • Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE