NOTICE: Due to a lapse in annual appropriations, most of this website is not being updated. Learn more.
Form submissions will still be accepted but will not receive responses at this time. Sections of this site for programs using non-appropriated funds (such as NVLAP) or those that are excepted from the shutdown (such as CHIPS and NVD) will continue to be updated.
An official website of the United States government
Here’s how you know
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.
Determination of test cycle sensitivity coefficients for the Rockwell HR45N hardness scale
Published
Author(s)
Samuel R. Low III, Renato R. Machado
Abstract
This article describes work carried out to determine test cycle sensitivity coefficients for the Rockwell HR45N hardness scale. Sensitivity coefficients were determined for the preliminary- force, total-force and recovery-force dwell times. The work was carried out in 2017 at the National Institute of Standards and Technology (NIST) in Gaithersburg, USA
Low, S.
and Machado, R.
(2018),
Determination of test cycle sensitivity coefficients for the Rockwell HR45N hardness scale, Journal of Physics: Conference Series, [online], https://doi.org/10.1088/1742-6596/1065/6/062007
(Accessed October 16, 2025)