{"title":"Influence of Machine Anvil Wear on Charpy Test Results","authors":"E. Lucon, R. Santoyo","doi":"10.6028/jres.125.015","DOIUrl":null,"url":null,"abstract":"We investigated the influence of the state of wear of Charpy machine anvils on\n test results byperforming impact tests on NIST specimens of three energy levels with a\n machine equipped with new anvils (compliant with both ASTM E23 [1] and ISO 148-2 [2])\n and worn anvils (anvil corner radii and distance outside ASTM tolerances, but within ISO\n tolerances). The results obtained, statistically analyzed, unequivocally show that worn\n anvils tend to increase absorbed energy at all energy levels. On the other hand, data\n variability does not appear to be significantly affected by anvil wear. This study\n represents NIST contribution to an international effort spearheaded by the Japan Iron\n and Steel Federation Standardization Center (Tokyo, Japan).","PeriodicalId":54766,"journal":{"name":"Journal of Research of the National Institute of Standards and Technology","volume":" ","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2020-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Research of the National Institute of Standards and Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.6028/jres.125.015","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"INSTRUMENTS & INSTRUMENTATION","Score":null,"Total":0}
引用次数: 0
Abstract
We investigated the influence of the state of wear of Charpy machine anvils on
test results byperforming 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).
期刊介绍：
The Journal of Research of the National Institute of Standards and Technology is the flagship publication of the National Institute of Standards and Technology. It has been published under various titles and forms since 1904, with its roots as Scientific Papers issued as the Bulletin of the Bureau of Standards.
In 1928, the Scientific Papers were combined with Technologic Papers, which reported results of investigations of material and methods of testing. This new publication was titled the Bureau of Standards Journal of Research.
The Journal of Research of NIST reports NIST research and development in metrology and related fields of physical science, engineering, applied mathematics, statistics, biotechnology, information technology.
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