Vladimir B. Khromchenko

Publications

Measurements of Melt Pool Geometry and Cooling Rates of Individual Laser Traces on IN625 Bare Plates

February 5, 2020

Author(s)

Brandon M. Lane, Jarred C. Heigel, Richard E. Ricker, Ivan Zhirnov, Vladimir Khromchenko, Jordan S. Weaver, Thien Q. Phan, Mark R. Stoudt, Sergey Mekhontsev, Lyle E. Levine

The complex physical nature of the laser powder bed fusion (LPBF) process warrants use of multiphysics computational simulations to predict or design optimal

Characterization of Five-Hole Probes used for Flow Measurement in Stack Emission Testing

May 17, 2018

Author(s)

Iosif I. Shinder, Aaron N. Johnson, Michael R. Moldover, Bernard J. Filla, Vladimir Khromchenko

We report progress towards the goal of reducing the errors in industrial smokestack flow measurements to 1 % by replacing S-probes with calibrated 3-D probes (i

NISTs New 3D Airspeed Calibration Rig, Addresses Turbulent Flow Measurement Challenges

April 14, 2015

Author(s)

Iosif I. Shinder, Vladimir Khromchenko, Michael R. Moldover

Outdoor air flows and flue-gas flows in large conduits and large stacks have significant swirl and turbulence. Accurate measurements of such complex flows are

Comparison of laser-based and monochromator-based thermodynamic temperature measurements

March 19, 2012

Author(s)

George P. Eppeldauer, Howard W. Yoon, Jorge E. Neira, Vladimir Khromchenko, Charles E. Gibson, Allan W. Smith

In this work, we describe the comparisons between the laser-based and monochromator-based radiance responsivity calibrations of a radiation thermometer. The

Extension of the NIST spectral power-responsivity calibration service to 2500 nm

March 2, 2012

Author(s)

George P. Eppeldauer, Howard W. Yoon, Jinan Zeng, Thomas C. Larason, Jeanne M. Houston, Vladimir Khromchenko

The National Institute of Standards and Technology (NIST) is working to extend the upper wavelength limit of the spectral power-responsivity calibration service

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