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Materials /Materials characterization

Mechanical properties

News and Updates

Projects and Programs

EBSD grain orientation map for additively manufactured Ti-6Al-4V showing elongated prior-Beta grain morphology in the build direction (vertical in this image)"

Additive Manufacturing Fatigue and Fracture

Ongoing
RESEARCH HIGHLIGHTS FACILITIES and CAPABILITIES PUBLICATIONS - see individual staff webpages on right POST-DOCTORAL OPPORTUNITIES - jump to section below Metal additive manufacturing (AM) is not used in fatigue and fracture critical applications despite industrial need. The goal of this project is...

Charpy Machine Verification Program

Ongoing
The Charpy test is a high loading rate test that measures the energy absorbed during fracture, hence providing an indirect measure of impact toughness. For a Charpy machine to maintain an accurate absorbed energy scale, periodic verification with certified specimens is required. To achieve the...

Publications

Control of Dynamic Composites through Filler Surface Chemistry

Author(s)
Neil Dolinski, Lily Alperstein, Ran Tao, Anthony Kotula, Hojin Kim, Kyle Petersen, Elina Ghimire, Charlie Lindberg, Julia Murphy, Kexin Li, SJ Sibener, Aaron Forster, Stuart Rowan
The addition of hard fillers to polymeric networks allows for enhancement of mechanical properties, generally at the expense of extensibility. In the case of...

Tools and Instruments

Video clips of different Kolsky Bar tests performed at NIST

Pulse-Heated Kolsky Bar

This facility provides dynamic strength measurements in tension and compression at strain rates between 500 strain/s and 5000 strain/s with the option for rapid

NCAL: Thermal Imaging Systems

Thermal imaging systems are available in the NIST Center for Automotive Lightweighting. These cameras can be used to measure adiabatic heating during mechanical

Awards

William Luecke

William Luecke Recognized with ASTM Award of Merit

For dynamic and outstanding leadership in the organization of editorial and terminology advances in mechanical testing and calibration standards in ASTM International Committee E28 on Mechanical Testing. Dr. Luecke's award was confirmed in 2021, but...
Mark Stoudt

Mark Stoudt Named ASM Fellow

For outstanding contributions to the scientific understanding of the structure-property relationships of additively manufactured alloys and deformation induced surface roughness of lightweight automotive alloys.
Frank DelRio head shot

MML Group Leader Frank DelRio Named ASME Fellow

Group Leader Frank DelRio, leader of the Fatigue and Fracture Group in the Applied Chemicals and Materials Division, has been elected a Fellow of the American Society of Mechanical Engineers (ASME). The ASME Committee of Past Presidents confers the...
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