Understanding of Tensile Test Results on Small Size Specimens of Certified Reference Material BCR-661

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Understanding of Tensile Test Results on Small Size Specimens of Certified Reference Material BCR-661. / Vandermeulen, Willy; Puzzolante, Jean-Louis; Scibetta, Marc.

In: Journal of Testing and Evaluation, Vol. 45, No. 2, 01.03.2017, p. 1.

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@article{b635743eb3dd4689ac2295850dd244b8,
title = "Understanding of Tensile Test Results on Small Size Specimens of Certified Reference Material BCR-661",
abstract = "BCR-661 is a Nimonic 75 Certified Reference Material for tensile testing, available from the European Institute for Reference Materials and Measurements. The certification is based on specimens with a diameter of 10 mm. Since for several purposes small specimens are desirable, an attempt was made to qualify a specimen with a diameter of 2.4 mm. It was found that for cylindrical specimens made by turning neither the 0.2 {\%} proof stress, nor the tensile strength values corresponded with the certified values. Rectangular section specimens made by electro-discharge machining gave correct stress values but too high elongations. The reduction of area values were for all specimens satisfactory. It was shown that the stress deviations found in the turned specimens are due to the presence of a work hardened layer caused by machining. Annealing of turned specimens resulted in correct strength values. With regard to the elongation values the influence of the specimen shape and possible specimen head deformation seem to be important factors.",
keywords = "tensile test",
author = "Willy Vandermeulen and Jean-Louis Puzzolante and Marc Scibetta",
note = "SCORE=10",
year = "2017",
month = "3",
day = "1",
doi = "10.1520/JTE20150377",
language = "English",
volume = "45",
pages = "1",
journal = "Journal of Testing and Evaluation",
issn = "0090-3973",
publisher = "ASTM International",
number = "2",

}

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TY - JOUR

T1 - Understanding of Tensile Test Results on Small Size Specimens of Certified Reference Material BCR-661

AU - Vandermeulen, Willy

AU - Puzzolante, Jean-Louis

AU - Scibetta, Marc

N1 - SCORE=10

PY - 2017/3/1

Y1 - 2017/3/1

N2 - BCR-661 is a Nimonic 75 Certified Reference Material for tensile testing, available from the European Institute for Reference Materials and Measurements. The certification is based on specimens with a diameter of 10 mm. Since for several purposes small specimens are desirable, an attempt was made to qualify a specimen with a diameter of 2.4 mm. It was found that for cylindrical specimens made by turning neither the 0.2 % proof stress, nor the tensile strength values corresponded with the certified values. Rectangular section specimens made by electro-discharge machining gave correct stress values but too high elongations. The reduction of area values were for all specimens satisfactory. It was shown that the stress deviations found in the turned specimens are due to the presence of a work hardened layer caused by machining. Annealing of turned specimens resulted in correct strength values. With regard to the elongation values the influence of the specimen shape and possible specimen head deformation seem to be important factors.

AB - BCR-661 is a Nimonic 75 Certified Reference Material for tensile testing, available from the European Institute for Reference Materials and Measurements. The certification is based on specimens with a diameter of 10 mm. Since for several purposes small specimens are desirable, an attempt was made to qualify a specimen with a diameter of 2.4 mm. It was found that for cylindrical specimens made by turning neither the 0.2 % proof stress, nor the tensile strength values corresponded with the certified values. Rectangular section specimens made by electro-discharge machining gave correct stress values but too high elongations. The reduction of area values were for all specimens satisfactory. It was shown that the stress deviations found in the turned specimens are due to the presence of a work hardened layer caused by machining. Annealing of turned specimens resulted in correct strength values. With regard to the elongation values the influence of the specimen shape and possible specimen head deformation seem to be important factors.

KW - tensile test

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/19532731

U2 - 10.1520/JTE20150377

DO - 10.1520/JTE20150377

M3 - Article

VL - 45

SP - 1

JO - Journal of Testing and Evaluation

JF - Journal of Testing and Evaluation

SN - 0090-3973

IS - 2

ER -

ID: 1391625