Lucon, E.
, McCowan, C.
and Santoyo, R.
(2015),
Impact Characterization of Line Pipe Steels by Means of Standard, Sub-Size and Miniaturized Charpy Specimens, Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.TN.1865
(Accessed April 19, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Impact Characterization of Line Pipe Steels by Means of Standard, Sub-Size and Miniaturized Charpy Specimens
Published
Author(s)
, ,
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 absorbed energy can be associated mostly to bending of the sample and friction between specimen and anvils. In this investigation, we performed instrumented Charpy tests in order to characterize the impact properties of four line pipe steels. For each of the steels, tests were performed on standard E23 Charpy specimens, sub-size specimens of two types (⅔-size and ¿-size), and miniaturized specimens of two types (KLST and RHS). For every combination of steel and specimen type, full transition curves and corresponding transition temperatures were established for absorbed energy, lateral expansion and shear fracture appearance.Citation
Technical Note (NIST TN) - 1865
Report Number
1865
NIST Pub Series
Pub Type
NIST Pubs
Download Paper
Keywords
Line pipe steels, instrumented Charpy tests, sub-size Charpy specimens, miniaturized Charpy specimens, ductile-to-brittle transition temperature, upper shelf energy, size-normalization, shear fracture appearance.
Citation
Created February 10, 2015, Updated November 10, 2018