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1. Certification Report for SRM 2216, 2218, 2219: KLST (Miniaturized) Charpy V-Notch Impact Specimens
Series: Special Publication (NIST SP)
Report Number: 260-180
Published: 7/23/2013
Author: Enrico Lucon
Abstract: This Certification Report documents the procedures used to develop certified values of maximum force (Fm) and absorbed energy (KV) for the following KLST-type miniaturized verification Charpy V-notch impact specimens: , SRM 2216 (low-energy leve ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914116

2. Determination of the compliance of NIST Charpy Impact Machines
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 8043
Published: 2/10/2015
Author: Enrico Lucon
Abstract: The compliance of a Charpy impact machine, CM, can be measured by means of a low-blow elastic test on an unnotched Charpy-type specimen, provided an instrumented striker is used. The resulting force/time and force/displacement test records can be ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917638

3. Effect of Electrical Discharge Machining (EDM) on Miniaturized Charpy Test Results
Published: 12/11/2012
Author: Enrico Lucon
Abstract: Electrical Discharge Machining (EDM) is a manufacturing process whereby a desired shape is obtained through electrical discharges between an electrode and a workpiece, separated by a dielectric fluid. EDM produces a recast layer on the surface of the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910266

4. Evaluation of Bias for Two Charpy Impact Machines Using the Same Instrumented Striker
Published: 5/1/2011
Authors: Christopher N McCowan, Enrico Lucon, Raymond L Santoyo
Abstract: Two Charpy machines were used to test NIST verification specimens at three energy levels: low energy (≈ 15 J at -40°C), high energy (≈ 100 J at -40°C) and super-high energy (≈ 240 J at room temperature). The study evaluates the diff ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905891

5. Fracture Toughness Characterization of High-Pressure Pipe Girth Welds Using Single-Edge Tension SE(T) Specimens
Published: 8/1/2014
Authors: Enrico Lucon, Timothy S Weeks, James Gianetto, W. R. Tyson, D. Y. Park
Abstract: The safety and reliability of large-diameter pipelines for the transport of fluid hydrocarbons is being improved by the development of high-strength steels, advanced weld technologies and strain-based design (SBD) methodologies. Strain-based design i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914682

6. Impact Characterization of 4340 and T200 Steels by Means of Standard, Sub Size and Miniaturized Charpy Specimens
Series: Technical Note (NIST TN)
Report Number: 1858
Published: 2/10/2015
Authors: Enrico Lucon, Christopher N McCowan, Raymond L Santoyo
Abstract: In this investigation, we performed instrumented Charpy tests in order to characterize the impact properties of three steels, used by NIST for the production of Charpy reference specimens (4340 quenched and tempered with two energy levels, and T2 ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917313

7. Impact Characterization of Line Pipe Steels by Means of Standard, Sub-Size and Miniaturized Charpy Specimens
Series: Technical Note (NIST TN)
Report Number: 1865
Published: 2/10/2015
Authors: Enrico Lucon, Christopher N McCowan, Raymond L Santoyo
Abstract: Modern line pipe steels are characterized by a continuously increasing ratio between ductility and mechanical strength, which makes it difficult to interpret the results of conventional Charpy impact tests. For such tests, the extremely high abso ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917096

8. Instrumented Impact Tests: Effects of Machine Variables and Specimen Position
Published: 1/1/2009
Authors: Christopher N McCowan, Enrico Lucon
Abstract: An investigation has been conducted on the influence of impact machine variables and specimen positioning on characteristic forces and absorbed energies from instrumented Charpy tests. Brittle and ductile fracture behavior has been investigated by te ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854171

9. Measurement of Dynamic Impact Toughness on Impact-Tested Precracked Charpy Specimens
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 8065
Published: 6/18/2015
Author: Enrico Lucon
Abstract: The Fraunhofer Institute for Mechanics of Materials (IWM, Freiburg, Germany) and the Materials Testing Institute University of Stuttgart (MPA Stuttgart, Germany) have recently launched a joint collaboration project titled ,Dynamic Mastercurves IIŠ (M ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=918655

10. Small Scale Tensile, Charpy V-Notch, and Fracture Toughness Tests
Published: 1/25/2012
Authors: Enrico Lucon, Timothy S Weeks, James Gianetto, W. R. Tyson, D. Y. Park, G Shen, Marie A Quintana, V. B. Rajan, Yong-Yi Wang
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909627



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