Showing 18 results for Researcher: Ke An
April 12, 2024
4 MIN READ
The Neutron Scattering Society of America, or NSSA, recognized Oak Ridge National Laboratory’s Ke An and Ken Herwig as fellows for their outstanding contributions to neutron scattering.
October 16, 2023
5 MIN READ
Using neutrons to see the additive manufacturing process at the atomic level, scientists have shown that they can measure strain in a material as it evolves and track how atoms move in response to stress.
July 21, 2023
5 MIN READ
Research into a new, unique technology to fabricate composite metal parts for a wide range of applications operating in extreme environments across the aviation, space and energy industries is showing promise for additive manufacturing.
January 18, 2023
1 MIN READ
ORNL researchers have identified a mechanism in a 3D-printed alloy – termed “load shuffling” — that could enable the design of better-performing lightweight materials for vehicles.
August 17, 2022
1 MIN READ
Additively manufactured (AM) metal alloys by laser powder bed fusion (L-PBF) involve large temperature gradients and rapid cooling that enable microstructural refinement to the nanoscale for achieving high strength.
November 1, 2021
1 MIN READ
Researchers at Oak Ridge National Laboratory have developed a method of adding nanostructures to high-entropy metal alloys, or HEAs, that enhance both strength and ductility, which is the ability to deform or stretch
October 13, 2021
1 MIN READ
Most alloys, including high entropy alloys (HEAs), lose ductility when the strength increases.
July 7, 2021
6 MIN READ
Scientists at ORNL and the University of Tennessee, Knoxville, have found a way to simultaneously increase the strength and ductility of an alloy by introducing tiny precipitates into its matrix and tuning their size and spacing.
July 7, 2021
1 MIN READ
Scientific Achievement: Spatial confinement imposed by bifunctional nanoprecipitates enhances strength and ductility of medium-entropy alloys (MEAs) by impeding dislocation motion and modulating transformation-induced plasticity. Significance and Impact: Precipitate characteristics and alloy chemistry can be precisely tailored to activate deformation mechanisms exactly when needed to thwart the strength-ductility tradeoff.DOI: 10.1038/s41586-021-03607-y
December 21, 2020
7 MIN READ
In the quest for advanced vehicles with higher energy efficiency and ultra-low emissions, ORNL researchers are accelerating a research engine that gives scientists and engineers an unprecedented view inside the atomic-level workings of combustion engines in real time.
February 4, 2019
2 MIN READ
A University of South Carolina research team is investigating the oxygen reduction performance of energy conversion materials called perovskites by using neutron diffraction at Oak Ridge National Laboratory’s Spallation Neutron Source.
November 1, 2018
1 MIN READ
Scientists from AK Steel Corporation are using neutrons at Oak Ridge National Laboratory’s Spallation Neutron Source to discover how different manufacturing processes will affect the performance of the company’s new AHSS, or advanced high strength steel, called NEXMET® 1000.