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AISI 304 Welding Fracture Resistance by a Charpy Impact Test with a High Speed Sampling Rate

1
Department of Mechanical Engineering, Muhammadiyah University of Yogyakarta, Bantul Yogyakarta 55183, Indonesia
2
Department of Mechanical Engineering, Brawijaya University, Malang 65145, Indonesia
*
Author to whom correspondence should be addressed.
Metals 2017, 7(12), 543; https://doi.org/10.3390/met7120543
Received: 24 October 2017 / Revised: 27 November 2017 / Accepted: 29 November 2017 / Published: 5 December 2017
(This article belongs to the Special Issue Mechanical Behavior of High-Strength Low-Alloy Steels)
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Abstract

The purpose of this study was to evaluate fracture resistance in AISI 304. The J-R curve was constructed from data, which resulted from an impact test by Charpy Impact machine equipped with high-speed sampling rate data acquisition equipment. The critical values of fracture resistance in fusion zones (FZ), high temperature heat affected zones (HTHAZ), low temperature heat affected zones (LTHAZ) and unaffected base metals (UBM) were obtained by calculation methods using some formulas and by graphical methods. Laboratory experiments demonstrated the relationships among the values of energy absorption along the impact test with the obstruction of dislocation movement due to the presence of chromium interstitial solute in all zones and chromium rich carbide precipitates in fusion zones and heat affected zones. View Full-Text
Keywords: fracture resistance; Charpy impact test; J-R curve; dislocation; precipitate fracture resistance; Charpy impact test; J-R curve; dislocation; precipitate
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Riyanta, B.; Wardana, I.N.G.; Irawan, Y.S.; Agus Choiron, M. AISI 304 Welding Fracture Resistance by a Charpy Impact Test with a High Speed Sampling Rate. Metals 2017, 7, 543.

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