Lucon, E.
and Santoyo, R.
(2020),
Influence of Machine Anvil Wear on Charpy Test Results, Journal of Research (NIST JRES), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/jres.125.015
(Accessed May 15, 2025)
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Influence of Machine Anvil Wear on Charpy Test Results
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Abstract
We investigated the influence of the state of wear of Charpy machine anvils on test results by performing impact tests on NIST specimens of three energy levels with a machine equipped with new anvils (compliant with both ASTM E23 [1] and ISO 148-2 [2]) and worn anvils (anvil corner radii and distance outside ASTM tolerances, but within ISO tolerances). The results obtained, statistically analyzed, unequivocally show that worn anvils tend to increase absorbed energy at all energy levels. On the other hand, data variability does not appear to be significantly affected by anvil wear. This study represents NIST contribution to an international effort spearheaded by the Japan Iron and Steel Federation Standardization Center (Tokyo, Japan).Citation
Journal of Research (NIST JRES) -
Volume
125
NIST Pub Series
Pub Type
NIST Pubs
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Keywords
Absorbed energy, anvil radius, ASTM E23, Charpy, ISO 148, machine anvils, span, wear.
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Created May 12, 2020