SEDL / STP / STP1111-EB / STP17760S

Recommended Changes in ASTM Test Methods D2512-82 and G86-84 for Oxygen-Compatibility Mechanical Impact Tests on Metals

McColskey, JD
physical scientistconsultantphysicistresearch chemist, National Institute of Standards and TechnologyNISTNISTNIST, Boulder, CO

Reed, RP
physical scientistconsultantphysicistresearch chemist, National Institute of Standards and TechnologyNISTNISTNIST, Boulder, CO

Simon, NJ
physical scientistconsultantphysicistresearch chemist, National Institute of Standards and TechnologyNISTNISTNIST, Boulder, CO

Bransford, JW
physical scientistconsultantphysicistresearch chemist, National Institute of Standards and TechnologyNISTNISTNIST, Boulder, CO

Pages: 28    Published: Jan 1991

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Abstract

A cooperative test program to assess the oxygen compatibility of aluminum-lithium alloys with NASA White Sands Test Facility (WSTF), NASA Marshall Space Flight Center (MSFC), and the National Institute of Standards and Technology (NIST) led to the assessment of the mechanical impact test by NIST. There were substantially different variations in test parameters between the test laboratories; some of these led to significant variability in the actual energy absorbed by the specimens. Therefore, test results varied widely.

To reduce the large disparities in interlaboratory test results, a number of changes are recommended in the current ASTM test standards.